CN109339044A - A kind of concrete pipe pile construction equipment - Google Patents
A kind of concrete pipe pile construction equipment Download PDFInfo
- Publication number
- CN109339044A CN109339044A CN201811240548.8A CN201811240548A CN109339044A CN 109339044 A CN109339044 A CN 109339044A CN 201811240548 A CN201811240548 A CN 201811240548A CN 109339044 A CN109339044 A CN 109339044A
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- Prior art keywords
- drilling
- sliding seat
- pile
- spiral drill
- piling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 80
- 230000003068 static effect Effects 0.000 claims abstract description 26
- KQTVWCSONPJJPE-UHFFFAOYSA-N etridiazole Chemical compound CCOC1=NC(C(Cl)(Cl)Cl)=NS1 KQTVWCSONPJJPE-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000010410 layer Substances 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 plain fill Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of concrete pipe pile construction equipment, telescopic rod one end in hydraulic system are installed in the sliding seat of mobile support saddle.The fixing seat of mobile support saddle is installed on the fuselage setting position of static press piling device.It is installed with support stand vertically on the sliding seat upper surface of mobile support saddle, fixed pulley is installed in the upper end of support stand, the pedestal of hoist engine is fixedly mounted in sliding seat, and the end of wirerope is fixed on the shell of Auger drilling power head on hoist engine around fixed pulley.The power output shaft of Auger drilling power head is fixedly connected with the upper end of drilling rod, and the upper end of spiral drill is fixedly connected with the lower end of drilling rod.Drilling tool casing is set on the outside of spiral drill, and the outer wall of drilling tool casing is fixed in support stand by connecting plate.The present invention, which solves open concrete tubular pile, can not be applied to the place that bearing course at pile end or more has pan soil interlayer, considerably increase its application range.
Description
Technical field
The present invention relates to Architectural Equipment and technical field of construction, specifically a kind of concrete pipe pile construction equipment.
Background technique
Concrete tubular pile is widely used in building field, have pile quality is easily-controllable, intensity is big, construction is fast, noise is low,
Pollute the advantages that small, bearing capacity is high.Tubular pole is suitable for engineering foundation stake or the support pile of base pit engineering etc..Tubular pole pile sinking is mainly adopted
With static(al) plunging or hammering penetration method.All kinds of weak soils, plain fill, plastic state cohesive soil, silt, loosely and slightly can be passed through
Close sand, into hard plastic or hardened condition cohesive soil, in it is close and in the close above sand, gravelly soil, strong-weathered rock and middle weathering
Ultimate soft rock certain depth.But penetratinghardpan or entrance hard stratum are that it is difficult to realize more deeply, although having to go deep into pan soil
Layer and matched pile top, but by its cost and complex geologic conditions are influenced, open-end pipe pile is mostly used in engineering, construction equipment
Predominantly static pressure or Driven Piles machine.Drawing bore method is taken in order to solve the problems, such as that tubular pole can not penetrate hard interbedded layer in some engineerings,
First use drilling machine pore-forming at stake position, then in the method for drawing hole site pile sinking, this method the disadvantage is that: first, this side
Method is first to be drilled by drilling machine in stake position, and drilling machine is removed after pore-forming, and stake machine pile sinking in place again, process is tedious, be related to construction equipment it is more,
Speed is slow；Second, pilot hole is more to waiting period length, interference between piling, easily causes collapse hole；Third, the structure of soil around pile after collapse hole
Destruction is very big, generates adverse effect to pile side friction.Therefore, concrete tubular pile is substantially at present in weak soil or cohesive soil
Area uses, when the hard interbedded layer of sand class is also distributed with other than weak soil, cohesive soil or silt more than bearing course at pile end, base
Plinth will not select concrete tubular pile pile-type when designing substantially.In conclusion although there are many concrete tubular pile own advantages, at present
Construction equipment and technique significantly limit the application range of concrete tubular pile.
Summary of the invention
The object of the present invention is to provide a kind of concrete pipe pile construction equipment.Solves open concrete tubular pile pile driving process
In be difficult to the problem of passing through hard interbedded layer.
The scheme that the present invention uses is:
A kind of concrete pipe pile construction equipment, including static press piling device and pipe inside spin drilling apparatus.Static press piling device by
Hoisting device, fuselage, pile pressing device and counter-force, which are matched, reassemblies composition.Above-mentioned static press piling device is known technology.Its feature exists
In:
Pipe inside spin drilling apparatus, including drilling rod, Auger drilling power head, spiral drill, drilling tool casing, hydraulic system, elevator
Machine and mobile support saddle.Hydraulic system, Auger drilling power head, mobile support saddle are known technology.Mobile support saddle include fixing seat and
Sliding seat, sliding seat can be moved forward and backward along fixing seat.Telescopic rod one end in hydraulic system is installed in the activity of mobile support saddle
On seat, it can be moved forward and backward by its extension and contraction control sliding seat.The fixing seat of mobile support saddle is installed on static press piling device
Fuselage setting position on.It is installed with support stand vertically on the sliding seat upper surface of mobile support saddle, in the upper of support stand
End is installed with fixed pulley, and the pedestal of hoist engine is fixedly mounted in sliding seat, and the end of wirerope bypasses fixed pulley on hoist engine
It is fixed on the shell of Auger drilling power head.The fixed company of the power output shaft of Auger drilling power head and the upper end of drilling rod
It connects, the upper end of spiral drill is fixedly connected with the lower end of drilling rod.Drilling tool casing is hollow cylinder shaped, and drilling tool casing is set in spiral shell
On the outside of turning and drilling tool, drilling tool lower movement in the vertical direction is limited, prevents drilling tool from boring inclined.The outer wall of drilling tool casing is solid by connecting plate
It is scheduled in support stand.By the back-and-forth motion of sliding seat on mobile support saddle, support stand is driven to be moved forward and backward, before realizing drill bit
It moves alignment pipe pile center or retreats and pack up.
A kind of concrete pipe pile construction technique, which is characterized in that include the following steps:
The first step, concrete pipe pile construction equipment are mobile in place；
Second step, handling concrete tubular pile align piles position, the work of static press piling device carry out piling；
Third step, piling to hard cohesive soil, sand or gravel layer is this kind of stops piling when being difficult to the hard stratum passed through；
4th step controls the telescopic rod elongation of hydraulic system, moves sliding seat forward, spiral drill alignment pipe pile center；
5th step is put wirerope by hoist engine and is extended downwardly into tubular pole hollow tube directly by Auger drilling power head and spiral drill
To arrival hard stratum；
6th step starts Auger drilling power head, drives spiral drill to carry out Auger drilling downwards, when drilling hard stratum or drilling
Hard stratum stops to bore when reaching projected depth and receives rope hoisting drilling tool by hoist engine, by the pan soil band at spiral drill blade position
Out, emptying aperture is drilled out in hard stratum；
7th step, starting static press piling device continue piling, and tubular pole can be pressed into hard stratum until penetrating pan soil interlayer, or indentation
Hard stratum reaches the depth of design requirement.
Hard cohesive soil, sand or this kind of pan soil for being difficult to pass through of gravel layer are encountered in open concrete tubular pile pile driving process
When interlayer, starting Auger drilling device carries out downwards Auger drilling in tubular pole hollow tube, when being drilled into the stake end face just in piling
Brill is mentioned when following certain depth, this depth can according to the great soil group of hard interbedded layer not, the factors scene such as thickness determine, mechanism be by
Pipe inside spin drilling destroys the original state structure of tube core lower part hard stratum and is taken out of the pan soil at helical blade position by mentioning brill, into
And one and the comparable emptying aperture of tube core diameter are formed under pipe pile end, the stress of emptying aperture surrounding soil is released, pore water
Pressure dissipation, static press piling device carries out piling at this time, originally in pile pipe wall pan soil below can collapse or quickly be squeezed into
Between in emptying aperture, tubular pole is able to indentation pan soil interlayer, repeats above step until tubular pole penetrates pan soil interlayer, or reaches into supporting course
To design requirement depth.
Design principle
There are many concrete tubular pile advantage, but one as prefabricated pile must solve the problems, such as, are exactly piling construction, pipe of concrete
Although stake has hollow tube core, its pile driving process is pressed by soil compaction, even if therefore big also difficult again for hard stratum pile driving pressure
To allow a root canal pile to squeeze into wherein.And Auger drilling method is a kind of non-soil compaction hole forming method, for being difficult to the hard stratum squeezed into, it
It can be pierced by spiral way, recycle helical blade all to take the soil in hole out of, pore-forming effect is good.It is advised with tubular pole
The spiral drill that lattice match drills out of tubular pole hollow tube, can pierce the hard stratum that tubular pole depended on pressure is difficult to be pressed into,
An emptying aperture is formed after pore-forming, while destroying the original state structure of local hard stratum under tubular pole, discharges the stress of emptying aperture surrounding soil
And pore water pressure, at this moment static press piling device, which is not required to too big pressure, can also be pressed into tubular pole in hard stratum.
Advantages of the present invention feature is:
1, the present invention, which solves open concrete tubular pile, can not be applied to the place that bearing course at pile end or more has pan soil interlayer, significantly
Increase its application range.
2, solve the problems, such as that open concrete tubular pile stake end enters bearing stratum depth deficiency.
3, it reduces and matches heavy load needed for counter force system, improve equipment conveying and construction efficiency, improve safety.
4, collapse hole, guarantee pile side friction do not play a role effectively the soil body on the outside of tubular pile body in pile driving process, improve stake
Bearing capacity.
Detailed description of the invention
Fig. 1 is the equipment schematic diagram of invention.
Fig. 2 is pipe inside spin drilling apparatus schematic diagram.
Fig. 3 is mobile support saddle sectional view.
Fig. 4 is that pipe inside spin creeps into cross-sectional view.
Appended drawing reference: fuselage 1, hoisting device 2, pile pressing device 3, pipe inside spin drilling apparatus 4, counter-force counterweight 5, concrete
Tubular pole 6, fixed pulley 7, support stand 8, hydraulic system 9, mobile support saddle 10, hoist engine 11, wirerope 12, Auger drilling power head
13, drilling rod 14, spiral drill 15, drilling tool casing 16, roll shaft 17, fixing seat 18, sliding seat 19.
Specific embodiment
A kind of concrete pipe pile construction equipment, including static press piling device and pipe inside spin drilling apparatus 4.Static press piling dress
It sets and is made of the assembly of hoisting device 2, fuselage 1, pile pressing device 3 and counter-force counterweight 5.Above-mentioned static press piling device is known technology.
It is characterized by:
Pipe inside spin drilling apparatus 4, including it is drilling rod 14, Auger drilling power head 13, spiral drill 15, drilling tool casing 16, hydraulic
System 9, hoist engine 11 and mobile support saddle 10.Hydraulic system 9, Auger drilling power head 13, mobile support saddle 10 are known technology.It moves
Dynamic support 10 includes fixing seat 18 and sliding seat 19, and sliding seat 19 can be moved forward and backward along fixing seat 18.Stretching in hydraulic system 9
Contracting bar one end is installed in the sliding seat 19 of mobile support saddle 10, can be moved forward and backward by its extension and contraction control sliding seat 19.It is mobile
The fixing seat 18 of support 10 is installed on 1 setting position of fuselage of static press piling device.In the sliding seat of mobile support saddle 10
Support stand 8 is installed on 19 upper surfaces vertically, is installed with fixed pulley 7 in the upper end of support stand 8, the pedestal of hoist engine 11 is solid
Dingan County is in sliding seat 19, and the end of wirerope 12 is fixed at Auger drilling power around fixed pulley 7 on hoist engine 11
On first 13 shell.The power output shaft of Auger drilling power head 13 is fixedly connected with the upper end of drilling rod 14, spiral drill 15
Upper end is fixedly connected with the lower end of drilling rod 14.Drilling tool casing 16 is set in 15 outside of spiral drill, and the outer wall of drilling tool casing 16 is logical
Connecting plate is crossed to be fixed in support stand 8.
A kind of concrete pipe pile construction technique, which is characterized in that include the following steps:
The first step, concrete pipe pile construction equipment are mobile in place；
Second step, handling concrete tubular pile align piles position, the work of static press piling device carry out piling；
Third step, piling to hard cohesive soil, sand or gravel layer is this kind of stops piling when being difficult to the hard stratum passed through；
4th step controls the telescopic rod elongation of hydraulic system, moves sliding seat forward, spiral drill alignment pipe pile center；
5th step is put wirerope by hoist engine and is extended downwardly into tubular pole hollow tube directly by Auger drilling power head and spiral drill
To arrival hard stratum；
6th step starts Auger drilling power head, drives spiral drill to carry out Auger drilling downwards, when drilling hard stratum or drilling
Hard stratum stops to bore when reaching projected depth and receives rope hoisting drilling tool by hoist engine, by the pan soil band at spiral drill blade position
Out, emptying aperture is drilled out in hard stratum；
7th step, starting static press piling device continue piling, and tubular pole can be pressed into hard stratum until penetrating pan soil interlayer, or indentation
Hard stratum reaches the depth of design requirement.
Long spire drilling tool outer blade diameter see the table below 1, the pan soil that drilling tool and run of steel need tubular pole to penetrate according to engineering ground
The buried depth and thickness of layer are equipped with, and guarantee can penetratinghardpan.
Table 1
Case study on implementation:
1, project profile
Typical project geological conditions and rock and soil properties such as the following table 2 of certain building engi-neering site, type of foundation are pipe of concrete pile foundation
Plinth is designed as Piles for Friction Piles, rely primarily on soil around pile side friction bear stake top vertical load, 12 meters of designing pile length, stake top mark
- 1.5 meters high, -13.5 meters of buried depth of stake end, bearing course at pile end is 7. silty clay layer.Pile-type is that PHC 500AB 100-12 is answered in advance
Power concrete tubular pile does not set pile top using static pressure method pile sinking.
Table 2
2, pile foundation construction technique
1. static pile press is run at stake position, align piles position；
2. slinging tubular pole dropping place after stake machine is in place；
3. static press piling meets 5. coarse sands layer at stake side pressure to 6.5 meters of buried depths, it is difficult to continue to be pressed into；
4. selecting the spiral drill of outer blade diameter d=270mm, pipe inside spin drilling apparatus is run, augers is directed at tubular pole
Center is crept into downwards, mentions 2 meters or so of brill after penetrating 5. coarse sands layer；
5. continuing piling, pile pipe wall coarse sand below can collapse or quickly be squeezed into central bore, and tubular pole is able to indentation sand
In layer, it is difficult to continue to be pressed into again as being pressed into after certain depth, then starts pipe inside spin drilling apparatus and creep into still further below, mention brill.Weight
4., 5. multiple this walks process, until tubular pole penetrates 5. coarse sands layer；
6. after tubular pole penetrates 5. coarse sands layer, pipe inside spin drilling apparatus can be packed up, continue the stake of static press piling to design requirement
It is deep.
Claims (2)
1. a kind of concrete pipe pile construction equipment, including static press piling device and pipe inside spin drilling apparatus (4)；Static press piling dress
It sets and is made of the assembly of hoisting device (2), fuselage (1), pile pressing device (3) and counter-force counterweight (5)；It is characterized by:
Pipe inside spin drilling apparatus (4), including drilling rod (14), Auger drilling power head (13), spiral drill (15), drilling tool casing
(16), hydraulic system (9), hoist engine (11) and mobile support saddle (10)；Mobile support saddle (10) includes fixing seat (18) and sliding seat
(19), sliding seat (19) can be moved forward and backward along fixing seat (18)；Telescopic rod one end in hydraulic system (9) is installed in mobile branch
In the sliding seat (19) of seat (10), it can be moved forward and backward by its extension and contraction control sliding seat (19)；The fixation of mobile support saddle (10)
Seat (18) is installed on fuselage (1) setting position of static press piling device；In the sliding seat (19) of mobile support saddle (10)
Support stand (8) is installed on end face vertically, is installed with fixed pulley (7) in the upper end of support stand (8), the bottom of hoist engine (11)
Seat is fixedly mounted on sliding seat (19), and the end of wirerope (12) is fixed on hoist engine (11) around fixed pulley (7)
On the shell of Auger drilling power head (13)；The power output shaft of Auger drilling power head (13) and the upper end of drilling rod (14) are fixed
Connection, the upper end of spiral drill (15) is fixedly connected with the lower end of drilling rod (14)；Drilling tool casing (16) is set in spiral drill
(15) outer wall in outside, drilling tool casing (16) is fixed in support stand (8) by connecting plate.
2. a kind of concrete pipe pile construction technique, which is characterized in that include the following steps:
The first step, concrete pipe pile construction equipment are mobile in place；
Second step, handling concrete tubular pile align piles position, the work of static press piling device carry out piling；
Third step, piling to hard cohesive soil, sand or gravel layer is this kind of stops piling when being difficult to the hard stratum passed through；
4th step controls the telescopic rod elongation of hydraulic system, moves sliding seat forward, spiral drill alignment pipe pile center；
5th step is put wirerope by hoist engine and is extended downwardly into tubular pole hollow tube directly by Auger drilling power head and spiral drill
To arrival hard stratum；
6th step starts Auger drilling power head, drives spiral drill to carry out Auger drilling downwards, when drilling hard stratum or drilling
Hard stratum stops to bore when reaching projected depth and receives rope hoisting drilling tool by hoist engine, by the pan soil band at spiral drill blade position
Out, emptying aperture is drilled out in hard stratum；
7th step, starting static press piling device continue piling, and tubular pole can be pressed into hard stratum until penetrating pan soil interlayer, or indentation
Hard stratum reaches the depth of design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240548.8A CN109339044A (en) | 2018-10-24 | 2018-10-24 | A kind of concrete pipe pile construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240548.8A CN109339044A (en) | 2018-10-24 | 2018-10-24 | A kind of concrete pipe pile construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339044A true CN109339044A (en) | 2019-02-15 |
Family
ID=65311687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811240548.8A Pending CN109339044A (en) | 2018-10-24 | 2018-10-24 | A kind of concrete pipe pile construction equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101872A (en) * | 2020-01-08 | 2020-05-05 | 李强 | Vertical pile casing for spiral pile driver |
| CN112832238A (en) * | 2021-01-11 | 2021-05-25 | 安徽理工大学 | Construction method and structure of concrete pipe pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725146A (en) * | 2009-12-02 | 2010-06-09 | 江守慈 | Static sunken pile construction technique for alternatively, sectionally and gradually spirally leading hole and statically sinking pile in pipe |
| CN102561349A (en) * | 2012-02-09 | 2012-07-11 | 安徽力达实业股份有限公司 | Multifunctional static pile press |
| CN102888844A (en) * | 2012-10-24 | 2013-01-23 | 山河智能装备股份有限公司 | Guide hole type static-pressure pile machine |
| WO2015100688A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Hydrostatic pile driver of full-stroke hole guiding type |
| CN209339143U (en) * | 2018-10-24 | 2019-09-03 | 沈阳市勘察测绘研究院 | A kind of concrete pipe pile construction equipment |
-
2018
- 2018-10-24 CN CN201811240548.8A patent/CN109339044A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725146A (en) * | 2009-12-02 | 2010-06-09 | 江守慈 | Static sunken pile construction technique for alternatively, sectionally and gradually spirally leading hole and statically sinking pile in pipe |
| CN102561349A (en) * | 2012-02-09 | 2012-07-11 | 安徽力达实业股份有限公司 | Multifunctional static pile press |
| CN102888844A (en) * | 2012-10-24 | 2013-01-23 | 山河智能装备股份有限公司 | Guide hole type static-pressure pile machine |
| WO2015100688A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Hydrostatic pile driver of full-stroke hole guiding type |
| CN209339143U (en) * | 2018-10-24 | 2019-09-03 | 沈阳市勘察测绘研究院 | A kind of concrete pipe pile construction equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101872A (en) * | 2020-01-08 | 2020-05-05 | 李强 | Vertical pile casing for spiral pile driver |
| CN111101872B (en) * | 2020-01-08 | 2021-08-17 | 江门市丰力机械有限公司 | Vertical pile casing for spiral pile driver |
| CN112832238A (en) * | 2021-01-11 | 2021-05-25 | 安徽理工大学 | Construction method and structure of concrete pipe pile |
| CN112832238B (en) * | 2021-01-11 | 2022-08-19 | 中化岩土集团股份有限公司 | Construction method and structure of concrete pipe pile |
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Application publication date: 20190215 |
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