CN209385794U - A kind of device for preventing underground piping surrounding medium from collapsing - Google Patents
A kind of device for preventing underground piping surrounding medium from collapsing Download PDFInfo
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- CN209385794U CN209385794U CN201822070224.6U CN201822070224U CN209385794U CN 209385794 U CN209385794 U CN 209385794U CN 201822070224 U CN201822070224 U CN 201822070224U CN 209385794 U CN209385794 U CN 209385794U
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- pipeline
- underground piping
- collapsing
- surrounding medium
- loaded filter
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- 239000004576 sand Substances 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
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- 239000002245 particle Substances 0.000 abstract description 11
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- 230000007547 defect Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 11
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model relates to a kind of devices for preventing underground piping surrounding medium from collapsing, and belong to underground utilities Defect prevention and Diagnosis Technique field, and main includes fixed chain, fixed support, geotextiles, loaded filter and lock；Fixed support is located at the inside of fixed chain and is connected with fixed chain, and the loaded filter of geotextiles package is equipped between fixed support, and the both ends of fixed chain are equipped with lock.The device for preventing underground piping surrounding medium from collapsing of the utility model is mounted on underground piping periphery, and by the geotextiles and loaded filter being mounted on device, when realizing that leak source occurs in pipeline, pipeline only allows water to flow back and forth, and solid particle is prevented to be lost.When the device of the utility model can guarantee that leak source leak occurs in underground piping, the soil body of surrounding and other media will not be lost with the flowing of dampening, be played the role of for protection underground piping itself with road, bridge and the building above pipeline vital.
Description
Technical field
The utility model relates to a kind of devices for preventing underground piping surrounding medium from collapsing, suitable for underground utilities defect
Prevention and improvement, belong to underground utilities Defect prevention and Diagnosis Technique field.
Background technique
Underground utilities are the important components of urban infrastructure, it carries many kinds of substance stream, energy flow and information
Stream, is one of the important material base that city is depended on for existence and development.Underground utilities include water supply, draining, electric power, heating power, electricity
Several major class such as letter, industrial pipeline, it is day and night responsible for the weight of transmission information and energy just as " nerve " and " blood " in human body
Appoint, be the basis that city is depended on for existence and development, referred to as " lifeline " in city.
Underground metal pipeline conveying has many advantages, such as safe and efficient, at low cost and is widely used.Underground metal pipeline is deposited
Most universal most serious the problem of be exactly to corrode, the erosion corrosion of the burn into pipeline internal flow of other media inside pipeline,
Corrosion and pipeline external corrosion under insulation of the gas to pipeline, are all probably to cause in tube wall stress burn into soil
Pipeline local location wall thickness reduces, so as to cause local location leakage.When the pipe-line for conveying liquids such as water supply, draining locally leak
When point, the solid particles such as sand, stone of pipeline can enter with the impact of water flow or other liquid inside pipeline or by pipe
The water that road ejects, which washes away, to be taken away, and with the propulsion of time, the solid particle of pipeline can be more and more pulled away, from
And the soil body of pipeline is caused to collapse.When the soil body of pipeline collapses, can directly contribute above the soil body
There is serious damage, and will also result in serious economic loss and casualties in road, bridge, building；It is therefore desirable to
A kind of apparatus is mounted on around underground piping, is collapsed come bring when preventing to occur with diagnosis and treatment compared with leak source.
It can leak hunting at present to underground utilities there are many technology and methods, mainly metal magnetic memory test method, ultrasound
Guided waves, pipeline pig detector etc..The technology of above-mentioned several pairs of underground pipelines respectively has advantage and disadvantage, and unique purpose is exactly
It leaks hunting to pipeline, finds out the leak source of pipeline.
Metal magnetic memory test method qualitatively can only be analyzed and be judged to the region that stress is concentrated is generated, and cannot reach
The stage that equipment and component progress service life are accurately assessed and predicted, it is also necessary to carry out deeper to the region that stress is concentrated is generated
Secondary researchs and analyses, and determines to generate the reason of stress is concentrated, the severity of memory impairment either specific numerical value, such as pipeline
Wall thickness loss amount, the length in crack, depth etc..Due to not needing to carry out magnetization treatment to detected component, component and set
Standby to be in earth magnetic field, what metal magnetic memory test method detected is the magnetic leakage signal of component itself, and this signal belongs to
Weak magnetic signal, it is easy to be influenced by external environment and human factor.
Ultrasonic guided wave detecting is a kind of a wide range of, broad covered area and quick primary assay, is led by using ultrasound
Wave technology detection after, preliminary judgement and grading can be made to the safety of pipe-line system, can distinguish normal portions and
Defective position；But this detection cannot be qualitative, i.e., cannot judge to be which kind of defect, and to the quantitative of defect
Only approximate evaluation is also rough to the defect location that detected, is not very accurately, to still need to rejected region
Final judgement and evaluation is made by other tools or method.When defect area present on detected pipeline is larger, surpass
The testing result of acoustic conductance wave technology can be more sensitive, defect lesser for area ratio present on pipeline transversal cross-section, or
It is the defect of single dotted, lateral strip, it is difficult to detect；It is this when the diameter of pipe lengths pipeline changes
The structure of variable cross-section will affect the precision of ultrasonic guided wave detection technology, and also will affect detection length；When detected pipeline is deposited
In a plurality of types of defects, ultrasonic guided wave detection technology is difficult to detect it differentiation.
" pipeline pig " detection, the country only have discrete units in research pipeline pig inner detection technique, and also in rudiment rank
Section；Pipeline pig (pig) is a kind of detection device advanced in the pipeline of operation with medium, and pipeline pig is used for non-destructive testing
It is primarily used to thickness measuring (thickness can lose after corrosive pipeline) and crack detection；Domestic existing underground metal pipes are less applicable in
The detection in pipeline pig carries out, for example, internal diameter of the pipeline often changes, the bending radius of elbow is smaller, inside pipeline in construction
It is not cleaned, often has some fragments and sundries；Detection device is expensive in pipeline pig, fails prevalence on the market, commonly
Work is detected less to be applicable in.
From the above description, it can be seen that at present it is existing have the shortcomings that the technology and methods that underground piping leaks hunting it is different, altogether
Property the shortcomings that exactly when pipeline leakage point is smaller, pipeline is embedded in the bad ground of field, there are many type of conduits is total for pipeline
When other situations such as depositing, existing technology can not detect the leak source of pipeline.
Therefore, when underground piping carries out burial and construction, a kind of equipment is provided, pipeline can be mounted on, when pipeline goes out
When existing leak source, this equipment can prevent the solid of pipeline to be lost with the flowing of pipeline internal liquid, prevent pipeline from going out
The pipeline soil body collapses when existing leak source, just becomes technical field technical problem urgently to be solved.
Summary of the invention
One of the purpose of this utility model is to provide a kind of device for preventing underground piping surrounding medium from collapsing, by the device
It is installed to around underground piping, by geotextiles loaded filter, only the water of pipeline is allowed to be flowed, pipeline can be prevented
Other media such as soil, sand, stone be lost, realization prevents pipeline medium from collapsing.
To achieve the above object, the utility model uses following technical scheme:
A kind of device for preventing underground piping surrounding medium from collapsing, it is characterised in that: main includes fixed chain, fixed branch
Support, geotextiles, loaded filter and lock；The fixed support is located at the inside of the fixed chain and is connected with the fixed chain
It connects, the loaded filter of geotextiles package is equipped between the fixed support, the both ends of fixed chain are equipped with lock.
Preferably, the fixed chain is the chain of free bend, is parallel two.
Preferably, the fixed support is the screw-thread steel that diameter is 25mm.
Preferably, the bar spacing is 200mm, selects reinforcing bar radical according to the pipeline of different-diameter.
Preferably, the geotextiles are that water penetration geotechnique made of one kind is pierced or woven by needle by synthetic fibers synthesizes material
Material.
Preferably, the loaded filter is a kind of graded sand gravel bed of partial size along water (flow) direction from fine to coarse.
Preferably, the loaded filter is made of the different sand of layer 2-4 granular size, stone or cobble.
The another object of the utility model is to provide the installation side of the above-mentioned device for preventing underground piping surrounding medium from collapsing
Method.
The above-mentioned purpose of the utility model reaches by the following technical programs:
A kind of device for preventing underground piping surrounding medium from collapsing, installation the following steps are included:
(1) soil layer is excavated
Using heavy mechanical equipment, the excavation before pipeline laying is carried out to scheduled position and depth, after the completion of ending, then
0.5m is respectively excavated around to predetermined position, for installing the device placed and prevent underground piping surrounding medium from collapsing；
(2) apparatus is installed
After the completion of soil excavation, the device for preventing underground piping surrounding medium from collapsing to complete is placed in hole
It is interior；
(3) earthen backfill is backfilled for the first time
After the device for preventing underground piping surrounding medium from collapsing is placed, backfill earthen backfill is carried out；
(4) it is laid with pipeline
For the first time after the completion of backfill, starts to be laid with pipeline, the pipeline being laid in advance is placed in the top of backfill for the first time；
(5) secondary backfill earthen backfill
After the completion of pipeline is laid with, continue to backfill earthen backfill above pipeline；
(6) device locks
After to secondary backfill earthen backfill, by the device for preventing underground piping surrounding medium from collapsing of the utility model into
Row docking after the completion of docking, is locked using the lock on fixed chain；
(7) earthen backfill is finally backfilled
After the device locking for preventing underground piping surrounding medium from collapsing of the utility model, pipeline is integrally backfilled
Earthen backfill.
Preferably, in step (3) backfill with a thickness of 0.5m.
Preferably, the height of backfill is 0.5m in step (4).
The utility model has the advantages that
The device for preventing underground piping surrounding medium from collapsing of the utility model is installed to around underground piping, passes through geotechnique
Cloth loaded filter only allows the water of pipeline to be flowed, other media such as soil, sand, stone of pipeline can be prevented to be lost, real
Now prevent pipeline medium from collapsing.
The utility model is described further below by the drawings and specific embodiments, but is not meant to this reality
With the limitation of novel protected range.
Detailed description of the invention
Fig. 1 is the installation sectional schematic diagram of the device for preventing underground piping surrounding medium from collapsing of the utility model.
Fig. 2 is the floor map of the device for preventing underground piping surrounding medium from collapsing of the utility model.
Fig. 3 is the cross sectional plane schematic diagram of the device for preventing underground piping surrounding medium from collapsing of the utility model.
Main parts size title
The 1 fixed fixed support of chain 2
3 geotextiles and loaded filter 4 latch
5 loaded filter, 6 geotextiles
Specific embodiment
Below with reference to specific legend, the utility model is further described.In the content for the instruction for having read the utility model
Later, those skilled in the art can make various changes and modification to the utility model, and such equivalent forms equally fall within this Shen
It please range claimed.
Embodiment 1
As shown in Figure 1, being the installation section signal of the device for preventing underground piping surrounding medium from collapsing of the utility model
Figure, the device for preventing underground piping surrounding medium from collapsing of the utility model are located at the outside of pipeline, shape and the basic phase of pipeline
It together, is the soil body between device and pipeline；As shown in Fig. 2, being the dress for preventing underground piping surrounding medium from collapsing of the utility model
The floor map set；As shown in figure 3, being the section flat of the device for preventing underground piping surrounding medium from collapsing of the utility model
Face schematic diagram；Wherein, 1 is fixed chain, and 2 be fixed support, and 3 be geotextiles and loaded filter, and 4 be lock, and 5 be loaded filter, and 6 are
Geotextiles；The device for preventing underground piping surrounding medium from collapsing of the utility model mainly includes two parallel fixation chains 1,
Two rows of parallel fixed supports 2 are equipped between two parallel fixation chains 1, every row is equipped with 14 fixed supports 2, and two rows are fixed
The loaded filter 5 (geotextiles and loaded filter 3) wrapped up by geotextiles 6 is equipped between support 2, the both ends of fixed chain 1 are equipped with lock 4
Connection for fixing between chain 1；Fixed chain 1 is a kind of chain for capableing of free bend, and the main function of this chain is
It is connected and fixed support, support 2 is connected and fixed by fixed chain, so that fixed support 2 be enable to consolidate；Why fixed chain is used
Item 2 is connected and fixed support 1, be because conduit section be all mostly it is round, fixed chain 1 can free bend, can be in difference
Such apparatus is installed on diameter and the pipeline of curvature；Fixed support 2 is a kind of support system being made of reinforcement welding, main
The effect wanted is the fixed geotextiles being made of geotextiles 6 and loaded filter 5 and loaded filter 3, prevents pipeline embedding relatively deep, soil body pressure
When power is larger, loaded filter 5 collapses, thus destroy, it is ineffective；Geotextiles 6 are that one kind is passed through needle thorn by synthetic fibers or woven
Made of water penetration geosynthetics, geotextiles 6 have many advantages, such as high endurance, corrosion-resistant, good water permeability, antimicrobial；Soil
The main function of work cloth 6 is to wrap up loaded filter 5, prevents the material in the solid particle and loaded filter 5 of pipeline mixed
It closes, keeps loaded filter 5 ineffective；Loaded filter 5 is a kind of graded sand gravel bed of partial size along water (flow) direction from fine to coarse, loaded filter 5
It is to be made by the different sand of layer 2-4 granular size, stone or cobble, the direction partial size along water flow constantly increases, any layer
Particle does not allow across adjacent thicker one layer of hole；The effect of loaded filter 5 is exactly when leak source occurs in pipeline, inside and outside pipeline
Only allow water flowing, solid particle is prevented to be lost；It is finally reached the purpose for preventing underground piping surrounding medium from collapsing.
The device for preventing underground piping surrounding medium from collapsing of the utility model by fixed chain 1 and fixes support 2,
Geotextiles 6 and loaded filter 5 are mounted on pipeline；Geotextiles 6 wrap up loaded filter 5, prevent the solid of pipeline
Material mixing in particle and loaded filter 5, keeps loaded filter ineffective.
The device for preventing underground piping surrounding medium from collapsing of the utility model passes through fixed chain 1 and fixed support 2
Geotextiles 6 and loaded filter 5 are fixed on pipeline, when leak source occurs in pipeline, the water in pipeline is ejected out of pipeline, this
When, water flow passes through the soil body of pipeline, geotextiles and loaded filter is then passed through, at this point, the solid particle in the soil body can be with
Water flow is spread around, and when being diffused into geotextiles 6 and loaded filter 5, solid particle is blocked, and water flow passes through geotextiles and anti-filter
Layer, so that reaching only allows water to pass through, the purpose that solid particle is blocked, reached prevents underground piping surrounding medium at this time
The final purpose of collapsing.
The device for preventing underground piping surrounding medium from collapsing of the utility model, when being placed in pipeline periphery and being acted on, packet
Include following steps:
1) soil layer is excavated
Using heavy mechanical equipment, the excavation before pipeline laying is carried out to scheduled position and depth, after the completion of ending, then
0.5m is respectively excavated to predetermined position around, the utility model is placed for installing and prevents the underground piping surrounding medium from collapsing
Device；
2) apparatus is installed
After the completion of soil excavation, by the dress for preventing underground piping surrounding medium from collapsing of the utility model to complete
Storing is placed in hole；
3) earthen backfill is backfilled for the first time
After the device for preventing underground piping surrounding medium from collapsing of the utility model is placed, backfill earthen backfill is carried out,
At this time backfill with a thickness of 0.5m, i.e., the top of the device for preventing underground piping surrounding medium from collapsing of the utility model return
Fill out the soil body of 0.5m thickness；
4) it is laid with pipeline
For the first time after the completion of backfill, start to be laid with pipeline；The pipeline being laid in advance is placed in the top of backfill for the first time；
5) secondary backfill earthen backfill
After the completion of pipeline is laid with, continue to backfill earthen backfill above pipeline, the height of backfill remains as at this time
0.5m, that is, the soil thickness after backfilling between pipe wall and apparatus are maintained at 0.5m；
6) device locks
After to secondary backfill earthen backfill, by the device for preventing underground piping surrounding medium from collapsing of the utility model into
Row docking after the completion of docking, is locked using the lock on fixed chain；
7) earthen backfill is finally backfilled
After the device locking for preventing underground piping surrounding medium from collapsing of the utility model, pipeline is integrally backfilled
Earthen backfill.
The device for preventing underground piping surrounding medium from collapsing of the utility model, by the geotextiles that are mounted on device and
Loaded filter, when realizing that leak source occurs in pipeline, pipeline only allows water to flow back and forth, the purpose for preventing solid particle to be lost, this
When the device of utility model can guarantee that leak source leak occurs in underground piping, the soil body of surrounding and other media will not be with dampenings
It flows and is lost, play vital work with road, bridge and the building above pipeline for protection underground piping itself
With.
Claims (7)
1. a kind of device for preventing underground piping surrounding medium from collapsing, it is characterised in that: main includes fixed chain, fixed branch
Support, geotextiles, loaded filter and lock；The fixed support is located at the inside of the fixed chain and is connected with the fixed chain
It connects, the loaded filter of geotextiles package is equipped between the fixed support, the both ends of fixed chain are equipped with lock.
2. the device according to claim 1 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the fixed chain
Item is the chain of free bend, is parallel two.
3. the device according to claim 2 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the fixed branch
Support is reinforcing bar.
4. the device according to claim 3 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the reinforcing bar is
14.
5. the device according to claim 4 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the geotextiles
It is pierced or is woven by needle by synthetic fibers.
6. the device according to claim 5 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the loaded filter
It is a kind of graded sand gravel bed of partial size along water (flow) direction from fine to coarse.
7. the device according to claim 6 for preventing underground piping surrounding medium from collapsing, it is characterised in that: the loaded filter
It is made of the different sand of layer 2-4 granular size, stone or cobble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070224.6U CN209385794U (en) | 2018-12-10 | 2018-12-10 | A kind of device for preventing underground piping surrounding medium from collapsing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070224.6U CN209385794U (en) | 2018-12-10 | 2018-12-10 | A kind of device for preventing underground piping surrounding medium from collapsing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385794U true CN209385794U (en) | 2019-09-13 |
Family
ID=67871392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070224.6U Active CN209385794U (en) | 2018-12-10 | 2018-12-10 | A kind of device for preventing underground piping surrounding medium from collapsing |
Country Status (1)
| Country | Link |
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| CN (1) | CN209385794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404609A (en) * | 2018-12-10 | 2019-03-01 | 中冶建筑研究总院有限公司 | A kind of device for preventing underground piping surrounding medium from collapsing |
| CN113551080A (en) * | 2021-07-30 | 2021-10-26 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
-
2018
- 2018-12-10 CN CN201822070224.6U patent/CN209385794U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404609A (en) * | 2018-12-10 | 2019-03-01 | 中冶建筑研究总院有限公司 | A kind of device for preventing underground piping surrounding medium from collapsing |
| CN109404609B (en) * | 2018-12-10 | 2024-02-09 | 中冶建筑研究总院有限公司 | Device for preventing medium around underground pipeline from collapsing |
| CN113551080A (en) * | 2021-07-30 | 2021-10-26 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
| CN113551080B (en) * | 2021-07-30 | 2022-04-22 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
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