CN109555901B - Pipe jacking construction system - Google Patents
Pipe jacking construction system Download PDFInfo
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- CN109555901B CN109555901B CN201811543480.0A CN201811543480A CN109555901B CN 109555901 B CN109555901 B CN 109555901B CN 201811543480 A CN201811543480 A CN 201811543480A CN 109555901 B CN109555901 B CN 109555901B
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- 238000010276 construction Methods 0.000 title claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 65
- 239000002689 soil Substances 0.000 claims abstract description 31
- 230000000007 visual effect Effects 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 238000009412 basement excavation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a pipe jacking construction system, which comprises a pipe jacking machine, a jacking device and a tool pipe, wherein the pipe jacking machine is arranged in a working well, the tool pipe is arranged at the front end of the jacking device, the tool pipe comprises a cylindrical pipe body, and the front end of the pipe body is a cutting edge end for cutting into a soil layer; the construction monitoring system is characterized by further comprising a monitoring system for monitoring construction, wherein the monitoring system comprises a main control module arranged on the ground, a central control module arranged in a working well and a monitoring module arranged in the pipe body; the monitoring module comprises a three-axis inclination angle sensor for monitoring the jacking direction and a meteorological multi-element louver box for detecting temperature, humidity, PM2.5 and PM 10; and the central control module comprises an audible and visual alarm for sending audible and visual alarm signals and a spraying device for reducing dust and lowering temperature. The invention has the advantages of improving the operation environment, effectively preventing the jacking deviation of the pipeline, being beneficial to improving the construction quality and the operation safety, and the like.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a pipe jacking construction system.
Background
With the continuous and stable growth of economy in China, the urbanization process is further accelerated, the demand of underground pipelines in China is increased year by year, and the traditional excavation construction method cannot be applied under many conditions. Since municipal pipelines are often laid in dense-population and bustling urban areas, various municipal pipelines such as water supply and drainage, electric power, communication, gas and heat, underground structures and structures exist around the pipelines, the traditional excavation method can affect the traffic and pollute the environment, has larger potential safety hazards and brings inconvenience to the life of citizens. Pipe jacking construction is implemented in China for years as a trenchless construction technology, and through years of development, the pipe jacking technology is applied to a large number of practical projects in China and keeps a high-speed growth trend. But in the current stage, except that mechanical pipe jacking is mostly adopted in east coastal cities, other areas are still in a relatively original stage, and a large amount of manual digging type pipe jacking construction technology is adopted.
The manual tunneling pipe-jacking construction technology is a construction technology that the rock soil on the working face in front of a pipe is manually excavated and matched with the jacking of a hydraulic jack, the technology is original and rough, the operation environment is severe, various emergency situations are often met, and the safety of operators cannot be effectively guaranteed; the pipeline jacking route cannot be monitored in real time, the pipeline jacking deviation is easily caused, and the engineering construction quality is influenced. According to the current market development situation, further optimization and perfection are urgently needed aiming at the construction technology of manual tunneling jacking pipes.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a push pipe construction system that can improve the operation environment, can effectively prevent the pipeline and carry out the skew of advancing, be favorable to improving construction quality and operation security.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pipe jacking construction system comprises a pipe jacking machine, a jacking device and a tool pipe, wherein the pipe jacking machine is installed in a working well, the tool pipe is installed at the front end of the jacking device and comprises a cylindrical pipe body, and the front end of the pipe body is a cutting edge end for cutting into a soil layer; the construction monitoring system is characterized by further comprising a monitoring system for monitoring construction, wherein the monitoring system comprises a main control module arranged on the ground, a central control module arranged in a working well and a monitoring module arranged in the pipe body;
the monitoring module comprises a three-axis tilt angle sensor for monitoring the jacking direction of the pipe body, a meteorological multi-element louver box for detecting temperature, humidity, noise, illumination, PM2.5 and PM10, a monitoring controller for acquiring detection data, a first wireless transceiving module for transceiving wireless signals and a monitoring power supply module; the three-axis tilt angle sensor, the meteorological multi-element louver box, the first wireless transceiving module and the monitoring power supply module are all connected with the monitoring controller and are fixedly arranged in the pipe body;
the central control module comprises an audible and visual alarm for sending audible and visual alarm signals, a single chip microcomputer, a central control power module, a spraying device and a second wireless receiving and transmitting module for receiving and transmitting wireless signals; the audible and visual alarm and the spraying device are controllably connected to the single chip microcomputer through a relay, and the central control power supply module and the second wireless transceiving module are both connected to the single chip microcomputer;
the master control module comprises a master control computer and a third wireless transceiver module which is connected and arranged;
the monitoring module and the central control module are in wireless connection through the first wireless transceiving module and the second wireless transceiving module; the central control module and the main control module are in wireless connection through the second wireless transceiver module and the third wireless transceiver module.
Adopt above-mentioned structure, can detect humiture, PM2.5 and PM10 simultaneously through the meteorological multi-element shutter box that sets up in the body, cooperate spraying system simultaneously, can be when the high temperature of operating surface or dust are too big before the pipe, spray through single chip microcomputer control spraying system, the operating surface carries out the dust fall cooling before the pipe, is favorable to improving the operational environment of operating surface before the pipe. In addition, the axis of the pipe body can be monitored through the three-axis inclination angle sensor arranged in the pipe body, once the pipe body is pushed in, the inclination angle of the axis is too large, the alarm can be given out through the audible and visual alarm of the central control module, and meanwhile, the alarm is transmitted to the main control computer of the main control module, so that the construction process is monitored, the correction is facilitated in time, and the construction quality is improved.
Further, the monitoring module further comprises a laser range finder for scanning and ranging the front operating surface of the tube, wherein the laser range finder is connected to the monitoring controller and is arranged at the front end of the tube body.
The excavation depth and the jacking footage of the front operating surface of the pipe are effectively supervised and controlled by the laser range finder, so that the situation that one-time excavation is too deep or jacking is too long is prevented in time. The construction of the jacking pipe can follow the principle of short footage, effectively avoids the collapse of the soil body of the working face caused by instability, and improves the construction safety.
Further, the monitoring module still includes the light and is used for the camera of video monitoring, light and camera all are connected to monitor controller, and install the front end of body.
The brightness of the front operation surface of the pipe can be improved through the illuminating lamp, construction is facilitated, meanwhile, the front operation surface of the pipe is monitored in real time through the camera, and standardized management is facilitated.
Furthermore, the monitoring module also comprises a gas component detector for detecting gas components and content, and the gas component detector is connected to the monitoring controller; the central control module also comprises an air supply and exhaust device for air replacement, and the air supply and exhaust device is controllably connected to the single chip microcomputer and is arranged in a pipeline between the pipe body and the working well.
Therefore, in the jacking process of the jacking pipe, the air in the pipeline can be conveyed to the pipe front operation surface by adopting the air conveying and exhausting device according to a certain time interval (such as 10 s), the gas component detector is carried in the pipe front operation surface to detect the air quality in the pipeline, and when the detection value exceeds the early warning range, the audible and visual alarm in the working well can timely feed back and give an alarm. The gas component detector mainly comprises the following detection contents: oxygen content, carbon monoxide content, hydrogen sulfide content, methane content, and the like.
Furthermore, the monitoring module also comprises an RFID reader-writer for identifying the radio frequency label on the safety helmet, and the RFID reader-writer is connected to the monitoring controller; and the RFID reader-writers are arranged in the pipeline between the pipe body and the working well at intervals.
Therefore, the RFID reader-writer can detect the radio frequency tag of the safety helmet worn by the head of the worker in the construction site, and the worker entering the construction site can be tracked, so that the standardized management is facilitated, and the safety of the construction site is improved.
Furthermore, the top of the inner side of the pipe body is also provided with a hydraulic jacking mechanism arranged along the axial direction and a plate-shaped top cover, and the top cover is positioned at the edge end and can be slidably arranged on the inner wall of the pipe body through a guide rail mechanism arranged along the axial direction of the pipe body; the telescopic end of the hydraulic jacking mechanism faces the cutting edge end and is connected to the top cover, so that the top cover can extend out of or retract into the pipe body along with the telescopic end; and one side of the top cover facing outwards is a cutting edge capable of cutting into a soil layer.
By adopting the structure, during construction, the whole tool pipe can be firstly jacked forwards to the front working face of the pipe, then the hydraulic jacking mechanism in the pipe body is utilized to jack the top cover towards the front working face of the pipe, so that the outward cutting edge of the top cover is cut into the soil layer of the front working face of the pipe as far as possible, and then a worker is organized to carry out excavation construction on rock soil of the front working face of the pipe. Because the workman is under construction, the top cap has inserted in the soil layer, forms the visor for after the soil layer excavation of top cap below, the soil layer of top cap top also should not collapse, both can ensure constructor's safety, can avoid the settlement that the collapse arouses again, saves the drilling and irritates concrete and the road repair expense in later stage, reduces construction cost, can improve the efficiency of construction again.
Furthermore, the whole top cap is arc-shaped, the outer diameter of the top cap is matched with the inner diameter of the pipe body, and the top cap is coaxially arranged in the pipe body.
Like this for the inner wall of body can be laminated to the top cap as far as possible, thereby reduce the occupation to body inner space, for the workman provides bigger operating space, convenient construction. In addition, the top cover is arranged to be arc-shaped, so that the bending strength of the extended top cover in the vertical direction can be increased, the deformation is prevented, and the service life is prolonged.
Furthermore, the guide rail mechanism is provided with two, is located respectively top cap ascending both sides in week.
Like this, guide rail mechanism can provide the holding power to the top cap from the both sides of top cap for the atress of top cap is more even, has and can avoid guide rail mechanism unbalance loading and damage, is favorable to improving guide rail mechanism's life.
Furthermore, two supporting blocks are welded on the inner wall of the pipe body and are respectively positioned on two sides of the top cover in the circumferential direction and close to the position of the cutting edge end; one side of the supporting block facing the top cover is provided with a supporting groove for the top cover to pass through; the length of the top cover is larger than the maximum extending length of the hydraulic jacking mechanism.
Because the length of the top cover is greater than the maximum extension length of the hydraulic jacking mechanism, even if the telescopic end of the hydraulic jacking mechanism is completely extended out, a part of the top cover is still positioned in the pipe body; and because the supporting blocks at the two sides of the top cover are positioned at the positions close to the edge opening end, when the extending part of the top cover is pressed downwards, the two supporting blocks and the other end of the top cover form a lever structure, thereby ensuring the balance of the top cover. And the supporting block is utilized to support the top cover, so that the acting force applied to the guide rail mechanism can be reduced, and the service life of the guide rail mechanism is prolonged.
Further, the guide rail mechanism is a steel rail welded on the inner wall of the pipe body along the axial direction of the pipe body; the two steel rails are provided with guide grooves which are arranged in a penetrating mode along the length direction on one side opposite to the circumferential direction of the pipe body, the width of each guide groove is consistent with the thickness of the top cover, and two sides of the top cover in the circumferential direction are respectively matched in the guide grooves.
In the structure, only one steel rail with the guide groove is adopted as the guide rail mechanism, the structure is simplified to the maximum extent on the premise of meeting the telescopic moving requirement of the top cover, and once the top cover is damaged, only the top cover needs to be replaced independently, so that the fault caused by the complex structure can be avoided, the maintenance is convenient, and the cost can be saved.
Furthermore, the top cover comprises a crosspiece in an arc shape and a plurality of drill rods welded on the crosspiece side by side along the circumferential direction of the crosspiece, one end of each drill rod, facing the cutting edge end, is provided with a conical drill bit, and the drill bits of the drill rods form the cutting edge of the top cover; and the telescopic end of the hydraulic jacking mechanism is connected to the crosspiece.
Because the drill rod has better intensity in the axial direction, and the conical drill bit is smaller in contact area with the soil layer, and is easier to insert into the soil layer, the top cover is formed by welding a plurality of drill rods and the crosspiece, so that the cutting edge of the top cover is sharper. In addition, the telescopic end is connected to the crosspiece, so that the acting force of the hydraulic jacking mechanism can be uniformly applied to each drill rod.
Furthermore, the crosspiece is provided with a plurality ofly along the length direction of the borer pole.
Thus, the overall strength of the top cover can be further improved.
Furthermore, the drill rod is provided with a connecting hole which is consistent with the end surface shape of the crosspiece in a penetrating mode in the radial direction, and the crosspiece penetrates through the connecting hole of the drill rod and is welded on the drill rod.
Therefore, the crosspiece can be positioned in the middle of the drill rod, and the situation that the insertion depth of the drill rod is influenced due to the fact that the crosspiece is exposed is avoided. And the crosspiece penetrates through the connecting hole and then is welded with the drill rod, so that the length of a welding seam between the crosspiece and the drill rod can be increased, and the welding strength of the crosspiece and the drill rod is improved.
Further, the distance between two adjacent drill rods is less than 8 mm.
Thus, a small gap is reserved between two adjacent drill rods, so that the soil layer above the drill rods can be prevented from collapsing, and the number of the drill rods can be reduced.
Furthermore, one end of the drill rod, which faces the cutting edge end, is provided with a threaded hole which is coaxially arranged, one end of the drill bit, which faces the drill rod, is provided with a screw rod matched with the threaded hole, and the drill bit is detachably arranged on the threaded hole of the drill rod through the screw rod.
Therefore, once the drill bit is damaged in the using process, the drill bit can be replaced at any time, and the maintenance is convenient.
In conclusion, the invention has the advantages of improving the working environment, effectively preventing the jacking deviation of the pipeline, being beneficial to improving the construction quality and the working safety and the like.
Drawings
Fig. 1 is a schematic structural diagram of a monitoring system.
Fig. 2 is a schematic structural view of the tool tube in an extended state.
Fig. 3 is a schematic bottom view of fig. 2.
Fig. 4 is a schematic structural diagram of the top cover.
FIG. 5 is a schematic cross-sectional view of a tool tube.
Detailed Description
The present invention will be described in further detail with reference to examples.
In the specific implementation: as shown in fig. 1 to 5, a pipe jacking construction system comprises a pipe jacking machine installed in a working well, a jacking device and a tool pipe installed at the front end of the jacking device, wherein the tool pipe comprises a cylindrical pipe body 1, and the front end of the pipe body 1 is a cutting edge end for cutting into a soil layer; the monitoring system comprises a main control module 6 arranged on the ground, a central control module 7 arranged in a working well and a monitoring module 8 arranged in the pipe body 1;
the monitoring module 8 comprises a three-axis tilt angle sensor 81 for monitoring the jacking direction of the pipe body 1, a meteorological multi-element louver 82 for detecting temperature, humidity, noise, illumination, PM2.5 and PM10, a monitoring controller 84 for acquiring detection data, a first wireless transceiver module 85 for transmitting and receiving wireless signals, and a monitoring power supply module 86; the three-axis tilt angle sensor 81, the meteorological multi-element louver 82, the first wireless transceiver module 85 and the monitoring power supply module 86 are all connected with the monitoring controller 84 and are fixedly installed in the tube body 1;
the central control module 7 comprises an audible and visual alarm 71 for emitting audible and visual alarm signals, a single chip microcomputer 72, a central control power module 73, a spraying device 75 and a second wireless receiving and transmitting module 74 for receiving and transmitting wireless signals; the audible and visual alarm 71 and the spraying device 75 are controllably connected to the single chip microcomputer 72 through relays, and the central control power module 73 and the second wireless transceiver module 74 are both connected to the single chip microcomputer 72;
the main control module 6 comprises a main control computer 61 and a third wireless transceiver module 62 which is connected and arranged;
the monitoring module 8 and the central control module 7 are wirelessly connected through the first wireless transceiver module 85 and the second wireless transceiver module 74; the central control module 7 and the main control module 6 are wirelessly connected through the second wireless transceiver module 74 and the third wireless transceiver module 62.
Adopt above-mentioned structure, can detect humiture, PM2.5 and PM10 simultaneously through the meteorological multi-element shutter box that sets up in the body, cooperate spraying system simultaneously, can be when the high temperature of operating surface or dust are too big before the pipe, spray through single chip microcomputer control spraying system, the operating surface carries out the dust fall cooling before the pipe, is favorable to improving the operational environment of operating surface before the pipe. In addition, the axis of the pipe body can be monitored through the three-axis inclination angle sensor arranged in the pipe body, once the pipe body is pushed in, the inclination angle of the axis is too large, the alarm can be given out through the audible and visual alarm of the central control module, and meanwhile, the alarm is transmitted to the main control computer of the main control module, so that the construction process is monitored, the correction is facilitated in time, and the construction quality is improved.
During implementation, the monitoring module 8 further comprises a laser range finder 87 for scanning and ranging the front operating surface of the tube, wherein the laser range finder 87 is connected to the monitoring controller 84 and is arranged at the front end of the tube body 1.
The excavation depth and the jacking footage of the front operating surface of the pipe are effectively supervised and controlled by the laser range finder, so that the situation that one-time excavation is too deep or jacking is too long is prevented in time. The construction of the jacking pipe can follow the principle of short footage, effectively avoids the collapse of the soil body of the working face caused by instability, and improves the construction safety.
During implementation, the monitoring module 8 further comprises an illuminating lamp and a camera 88 for video monitoring, wherein the illuminating lamp and the camera 88 are both connected to the monitoring controller 84 and are arranged at the front end of the pipe body 1.
The brightness of the front operation surface of the pipe can be improved through the illuminating lamp, construction is facilitated, meanwhile, the front operation surface of the pipe is monitored in real time through the camera, and standardized management is facilitated.
In practice, the monitoring module 8 further includes a gas component detector 89 for detecting gas components and content, and the gas component detector 89 is connected to the monitoring controller 84; the central control module 7 further comprises an air supply and exhaust device 76 for air replacement, wherein the air supply and exhaust device 76 is controllably connected to the single chip microcomputer 72 and is arranged in a pipeline between the pipe body 1 and the working well.
Therefore, in the jacking process of the jacking pipe, the air in the pipeline can be conveyed to the pipe front operation surface by adopting the air conveying and exhausting device according to a certain time interval (such as 10 s), the gas component detector is carried in the pipe front operation surface to detect the air quality in the pipeline, and when the detection value exceeds the early warning range, the audible and visual alarm in the working well can timely feed back and give an alarm. The gas component detector mainly comprises the following detection contents: oxygen content, carbon monoxide content, hydrogen sulfide content, methane content, and the like.
In implementation, the monitoring module 8 further includes an RFID reader 83 for identifying a radio frequency tag on a helmet, and the RFID reader 83 is connected to the monitoring controller 84; the RFID reader 83 is installed in the pipeline between the pipe body 1 and the working well at intervals.
Therefore, the RFID reader-writer can detect the radio frequency tag of the safety helmet worn by the head of the worker in the construction site, and the worker entering the construction site can be tracked, so that the standardized management is facilitated, and the safety of the construction site is improved.
In specific implementation, the configuration table of the main equipment is as follows:
| name (R) | Remarks for note |
| Network camera | Video capture |
| Laser radar sensor | Excavation depth acquisition |
| Meteorological multi-element louver box | Detecting temperature and humidity + noise + illumination + PM2.5+ PM10 |
| Three-axis tilt angle sensor | Detecting the heading face |
| Gas composition detector | Detecting the concentration of O2, CO and other gases |
| DDR-60G-24 | 24V power supply |
| DDR-60G-12 | 12V power supply |
| NPORT-5430 | Serial server |
| EDS-205B-T | Network switch |
| MAX AWK-1131A-US | Wireless AP |
| 4G module | Computer connection external network |
| Computer with a memory card | Running a monitor to monitor data |
| NDR-240-24 | 24V power supply |
| Siemens PLC: s7-200 | Alarm control |
| Relay with a movable contact | Alarm control |
| Alarm lamp | Sound and light alarm |
| Lithium battery | Device power supply |
In implementation, the top of the inner side of the pipe body 1 is further provided with a hydraulic jacking mechanism 2 arranged along the axial direction and a plate-shaped top cover 3, the top cover 3 is positioned at the edge end and is slidably arranged on the inner wall of the pipe body 1 through a guide rail mechanism 4 arranged along the axial direction of the pipe body; the telescopic end of the hydraulic jacking mechanism 2 faces the cutting edge end and is connected to the top cover 3, so that the top cover 3 can extend out of or retract into the pipe body 1 along with the telescopic end; the outward side of the top cover 3 is a cutting edge capable of cutting into a soil layer.
By adopting the structure, during construction, the whole tool pipe can be firstly jacked forwards to the front working face of the pipe, then the hydraulic jacking mechanism in the pipe body is utilized to jack the top cover towards the front working face of the pipe, so that the outward cutting edge of the top cover is cut into the soil layer of the front working face of the pipe as far as possible, and then a worker is organized to carry out excavation construction on rock soil of the front working face of the pipe. Because the workman is under construction, the top cap has inserted in the soil layer, forms the visor for after the soil layer excavation of top cap below, the soil layer of top cap top also should not collapse, both can ensure constructor's safety, can avoid the settlement that the collapse arouses again, saves the drilling and irritates concrete and the road repair expense in later stage, reduces construction cost, can improve the efficiency of construction again.
When in implementation, the whole top cover 3 is arc-shaped, the outer diameter of the top cover is matched with the inner diameter of the pipe body 1, and the top cover 3 is coaxially arranged in the pipe body 1.
Like this for the inner wall of body can be laminated to the top cap as far as possible, thereby reduce the occupation to body inner space, for the workman provides bigger operating space, convenient construction. In addition, the top cover is arranged to be arc-shaped, so that the bending strength of the extended top cover in the vertical direction can be increased, the deformation is prevented, and the service life is prolonged.
In implementation, the two guide rail mechanisms 4 are respectively located at two sides of the top cover 3 in the circumferential direction.
Like this, guide rail mechanism can provide the holding power to the top cap from the both sides of top cap for the atress of top cap is more even, has and can avoid guide rail mechanism unbalance loading and damage, is favorable to improving guide rail mechanism's life.
During implementation, two supporting blocks 5 are further welded on the inner wall of the pipe body 1, and the two supporting blocks 5 are respectively located on two sides of the top cover 3 in the circumferential direction and are close to the position of the cutting edge end; one side of the supporting block 5 facing the top cover 3 is provided with a supporting groove for the top cover 3 to pass through; the length of the top cover 3 is larger than the maximum extending length of the hydraulic jacking mechanism 2.
Because the length of the top cover is greater than the maximum extension length of the hydraulic jacking mechanism, even if the telescopic end of the hydraulic jacking mechanism is completely extended out, a part of the top cover is still positioned in the pipe body; and because the supporting blocks at the two sides of the top cover are positioned at the positions close to the edge opening end, when the extending part of the top cover is pressed downwards, the two supporting blocks and the other end of the top cover form a lever structure, thereby ensuring the balance of the top cover. And the supporting block is utilized to support the top cover, so that the acting force applied to the guide rail mechanism can be reduced, and the service life of the guide rail mechanism is prolonged.
In implementation, the guide rail mechanism 4 is a steel rail welded on the inner wall of the pipe body 1 along the axial direction of the pipe body 1; two the rail along the opposite one side of body 1 circumference has along length direction through arrangement's guide way, the width of guide way is unanimous with the thickness of top cap 3, the ascending both sides in top cap 3 circumference respectively the cooperation in the guide way.
In the structure, only one steel rail with the guide groove is adopted as the guide rail mechanism, the structure is simplified to the maximum extent on the premise of meeting the telescopic moving requirement of the top cover, and once the top cover is damaged, only the top cover needs to be replaced independently, so that the fault caused by the complex structure can be avoided, the maintenance is convenient, and the cost can be saved.
In practice, the top cover 3 comprises a crosspiece 31 in the shape of a circular arc and a plurality of drill rods 32 welded to the crosspiece 31 side by side along the circumference of the crosspiece, one end of each drill rod 32 facing the cutting edge end is provided with a conical drill bit, and the drill bits of the plurality of drill rods 32 form the cutting edge of the top cover 3; the telescopic end of the hydraulic jacking mechanism 2 is connected to the crosspiece 31.
Because the drill rod has better intensity in the axial direction, and the conical drill bit is smaller in contact area with the soil layer, and is easier to insert into the soil layer, the top cover is formed by welding a plurality of drill rods and the crosspiece, so that the cutting edge of the top cover is sharper. In addition, the telescopic end is connected to the crosspiece, so that the acting force of the hydraulic jacking mechanism can be uniformly applied to each drill rod.
In practice, the crosspiece 31 is provided in plurality along the length of the shank 32.
Thus, the overall strength of the top cover can be further improved.
In practice, the drill rod 32 is provided with a connecting hole which is penetrated in the radial direction and has the same shape as the end surface of the crosspiece 31, and the crosspiece 31 penetrates through the connecting hole of the drill rod 32 and is welded on the drill rod 32.
Therefore, the crosspiece can be positioned in the middle of the drill rod, and the situation that the insertion depth of the drill rod is influenced due to the fact that the crosspiece is exposed is avoided. And the crosspiece penetrates through the connecting hole and then is welded with the drill rod, so that the length of a welding seam between the crosspiece and the drill rod can be increased, and the welding strength of the crosspiece and the drill rod is improved.
In practice, the distance between two adjacent drill rods 32 is less than 8 mm.
Thus, a small gap is reserved between two adjacent drill rods, so that the soil layer above the drill rods can be prevented from collapsing, and the number of the drill rods can be reduced.
In practice, the end of the drill rod 32 facing the cutting edge end is provided with a coaxially arranged threaded hole, the end of the drill bit facing the drill rod 32 is provided with a screw rod matched with the threaded hole, and the drill bit is detachably arranged on the threaded hole of the drill rod 32 through the screw rod.
Therefore, once the drill bit is damaged in the using process, the drill bit can be replaced at any time, and the maintenance is convenient.
In the implementation, the drill bit is made of 40 MnMoV.
In practice, the maximum diameter of the drill bit is 2-3 mm larger than the maximum diameter of the drill rod 32.
Thus, after the drill bit is inserted into the soil layer, a hole with a diameter slightly larger than that of the drill rod is formed, and the drill rod is prevented from being in direct contact with the hole to increase the insertion resistance of the top cover.
In practice, the axial projection of the drill rod 32 is square, and the connecting holes are arranged in a penetrating manner along the diagonal direction of the square.
Because the drill rod is required to be extruded along the radial direction in the process of inserting the drill rod into the soil layer, compared with a cylindrical drill rod, the rectangular drill rod has the advantages that the soil layer is extruded to be smaller, and the reaction force of the soil layer to the drill rod is smaller, so that the drill rod can be smoothly inserted into the soil layer.
In practice, the crosspiece 31 comprises a main crosspiece located at the end of the drill rod 32 and an auxiliary crosspiece located in the middle of the drill rod 32, the main crosspiece and the drill rod 32 have the same size in the thickness direction of the top cover 3, and the telescopic end of the hydraulic jacking mechanism 2 is connected to the main crosspiece; the shape of the connecting hole is consistent with that of the end face of the auxiliary crosspiece, and the auxiliary crosspiece penetrates through the connecting hole; the size of the auxiliary crosspiece in the thickness direction of the top cover 3 is 3-5 mm, and the auxiliary crosspiece gradually becomes smaller into a wedge shape along the direction towards the drill bit.
The auxiliary crosspieces in the structure are wedge-shaped, so that the insertion resistance can be reduced.
When the hydraulic jacking and extending mechanism 2 is implemented, the hydraulic jacking and extending mechanism comprises a hydraulic cylinder arranged along the axial direction of the pipe body 1, and a piston rod of the hydraulic cylinder is connected to the top cover 3.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A pipe jacking construction system comprises a pipe jacking machine, a jacking device and a tool pipe, wherein the pipe jacking machine is installed in a working well, the tool pipe is installed at the front end of the jacking device and comprises a cylindrical pipe body (1), and the front end of the pipe body (1) is a cutting edge end used for cutting into a soil layer; the construction monitoring system is characterized by further comprising a monitoring system for monitoring construction, wherein the monitoring system comprises a main control module (6) arranged on the ground, a central control module (7) arranged in a working well and a monitoring module (8) arranged in the pipe body (1);
the monitoring module (8) comprises a three-axis tilt angle sensor (81) for monitoring the jacking direction of the pipe body (1), a meteorological multi-element louver (82) for detecting temperature, humidity, noise, illumination, PM2.5 and PM10, a monitoring controller (84) for acquiring detection data, a first wireless transceiver module (85) for transmitting and receiving wireless signals and a monitoring power supply module (86); the three-axis tilt angle sensor (81), the meteorological multi-element louver box (82), the first wireless transceiving module (85) and the monitoring power supply module (86) are all connected with the monitoring controller (84) and are fixedly installed in the tube body (1);
the central control module (7) comprises an audible and visual alarm (71) for sending audible and visual alarm signals, a single chip microcomputer (72), a central control power module (73), a spraying device (75) and a second wireless receiving and transmitting module (74) for receiving and transmitting wireless signals; the audible and visual alarm (71) and the spraying device (75) are controllably connected to the single chip microcomputer (72) through relays, and the central control power supply module (73) and the second wireless transceiving module (74) are both connected to the single chip microcomputer (72);
the main control module (6) comprises a main control computer (61) and a third wireless transceiver module (62) which is connected and arranged;
the monitoring module (8) and the central control module (7) are wirelessly connected through the first wireless transceiver module (85) and the second wireless transceiver module (74); the central control module (7) is wirelessly connected with the main control module (6) through the second wireless transceiving module (74) and the third wireless transceiving module (62).
2. Pipe jacking construction system according to claim 1, wherein the monitoring module (8) further comprises a laser range finder (87) for scanning and ranging the pipe front operating surface, the laser range finder (87) being connected to the monitoring controller (84) and mounted at the front end of the pipe body (1).
3. Pipe jacking construction system according to claim 1, wherein the monitoring module (8) further comprises an illumination lamp and a camera (88) for video monitoring, the illumination lamp and the camera (88) being connected to the monitoring controller (84) and being mounted at the front end of the pipe body (1).
4. The pipe jacking construction system according to claim 1, wherein the monitoring module (8) further comprises a gas component detector (89) for detecting gas components and contents, the gas component detector (89) being connected to the monitoring controller (84); the central control module (7) further comprises an air supply and exhaust device (76) for air replacement, wherein the air supply and exhaust device (76) is controllably connected to the single chip microcomputer (72) and is installed in a pipeline between the pipe body (1) and the working well.
5. The pipe-jacking construction system according to claim 1, wherein the inner top of the pipe body (1) is further provided with a hydraulic jacking mechanism (2) arranged along the axial direction and a top cover (3) in a plate shape, the top cover (3) is positioned at the edge end and is slidably arranged on the inner wall of the pipe body (1) through a guide rail mechanism (4) arranged along the axial direction of the pipe body; the telescopic end of the hydraulic jacking mechanism (2) faces the cutting edge end and is connected to the top cover (3), so that the top cover (3) can extend out of or retract into the pipe body (1) along with the telescopic end; and one outward side of the top cover (3) is a cutting edge capable of cutting into a soil layer.
6. Pipe jacking system according to claim 5, wherein the top cover (3) is generally circular-arc-shaped and has an outer diameter matching the inner diameter of the pipe body (1), the top cover (3) being coaxially arranged within the pipe body (1).
7. Pipe jacking system according to claim 6, wherein said guide rail means (4) are provided in two, one on each side of the circumference of said top cover (3).
8. The pipe jacking construction system according to claim 6, wherein two support blocks (5) are welded on the inner wall of the pipe body (1), and the two support blocks (5) are respectively positioned at two sides of the top cover (3) in the circumferential direction and are close to the position of the cutting edge end; one side of the supporting block (5) facing the top cover (3) is provided with a supporting groove for the top cover (3) to pass through; the length of the top cover (3) is larger than the maximum extending length of the hydraulic jacking mechanism (2).
9. Pipe jacking system according to claim 7, wherein said guide means (4) are rails welded to the inner wall of said pipe body (1) in the axial direction of said pipe body (1); two the rail along the opposite one side of body (1) circumference has along length direction through arrangement's guide way, the width of guide way is unanimous with top cap (3)'s thickness, top cap (3) ascending both sides in circumference respectively the cooperation in the guide way.
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| CN112049648B (en) * | 2020-09-02 | 2022-06-28 | 中国水利水电第七工程局成都水电建设工程有限公司 | Pipe jacking construction monitoring control method |
| CN112343619B (en) * | 2020-10-22 | 2022-06-14 | 河北省水利工程局 | Pipe jacking construction process |
| CN113217707A (en) * | 2021-05-26 | 2021-08-06 | 中建七局安装工程有限公司 | Pipe jacking construction system |
| CN115263326B (en) * | 2022-08-29 | 2024-07-26 | 中国地质大学（武汉） | Method for monitoring pipe-jacking pipeline deviation in real time based on triaxial inclination sensor |
| CN116718724A (en) * | 2023-05-05 | 2023-09-08 | 中建一局集团第五建筑有限公司 | A device for over-excavation early warning and harmful gas monitoring in manual pipe jacking construction |
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| US6332738B1 (en) * | 2000-03-06 | 2001-12-25 | At&T Corp. | Fiber optic cable installation method and apparatus |
| CN101864943A (en) * | 2010-06-09 | 2010-10-20 | 宁波金地电子有限公司 | Trenchless guiding control equipment and method |
| CN108561118B (en) * | 2012-07-20 | 2022-06-24 | 默林科技股份有限公司 | Buried operations, systems, communications, and related apparatus and methods |
| KR20140086507A (en) * | 2012-12-28 | 2014-07-08 | 주식회사 가나오엠 | Method and exploration system for drainage pipe |
| CN204099347U (en) * | 2014-07-31 | 2015-01-14 | 中煤科工集团上海有限公司 | A kind of rectangular top pipe driving owner pushes up system |
| CN106968682A (en) * | 2017-05-23 | 2017-07-21 | 合肥工业大学 | Push-bench automatic error correction control system and its method based on photosensor arrays |
| CN207687483U (en) * | 2017-11-30 | 2018-08-03 | 樊娟 | A kind of bridge construction no-dig technique sensor type push pipe |
| CN108548010A (en) * | 2018-06-29 | 2018-09-18 | 成都金玉雄辉建筑工程有限公司 | Improve security performance push-bench |
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