CN109629557A - A kind of cast-in-situ bored pile pile crown isolating device and its application method - Google Patents
A kind of cast-in-situ bored pile pile crown isolating device and its application method Download PDFInfo
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- CN109629557A CN109629557A CN201811547705.XA CN201811547705A CN109629557A CN 109629557 A CN109629557 A CN 109629557A CN 201811547705 A CN201811547705 A CN 201811547705A CN 109629557 A CN109629557 A CN 109629557A
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- pile
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- isolating device
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- pile crown
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of cast-in-situ bored pile pile crown isolating device, including a pallet, several casings, it is characterized by: the pallet is circular ring shape plastic plate, described sleeve pipe is plastic tube, plastics length of tube is equal to filling pile head reinforcing bar length+30mm, wherein: the interior tooth screwed connection of every plastics bottom of the tube outer tooth screw thread and plastic plate edge through-hole makes plastic tube be vertically fixed on the upper surface of plastic plate, reaches cast-in-situ bored pile pile crown isolating device.Cast-in-situ bored pile pile crown isolating device of the invention and its application method have pile crown isolating device structure simple, easy to make, it avoids bonding phenomenon between pile crown concrete and pile crown main reinforcement, when except pile crown, reinforcing bar is injury-free, reduce that the consumings of manpower and material resources, construction efficiency be high, easy to operate, short time limit, the advantages of reduction engineering cost.
Description
Technical field
The present invention relates to a kind of cast-in-situ bored pile pile crowns for building underground infrastructure, specifically, being a kind of drilling filling
Infuse pile head isolating device.
Background technique
Currently, increasing with building height, architectural engineering basis is most of to use pore-forming pouring concrete pile, in order to protect
Stake top concrete quality is demonstrate,proved, superfilled (general superfilled 500mm) can be carried out when construction to pile foundation, again by superfilled stake after pile crown is dug out
Head is cut, and application relatively widely cuts the main following four mode of pile crown at present: first is that artificial cutting ring removing cuts pile crown, by stake top
Superfilled place's concrete excision, reuses pneumatic pick and removes concrete on the outside of pile crown reinforcing bar, and reinforcing bar strips out, and uses wind in stake top position
Pick beats multiple holes, and insertion separating wedge is fast, and external force taps, until pile crown and pile body are completed to disconnect, but this mode is time-consuming, applies
Work process noise is big, a large amount of dust, the influence that vulnerable to the price of labour power goes up big to construction personnel's health effect.Cut pile crown
Of poor quality, pile crown out-of-flatness, reinforcing bar is flexible；Second is that mechanical cut pile crown, piles with different is adapted to together using multiple block combiners
The construction of diameter, and be connected in parallel by fluid pressure line, it realizes that synchronization action, same section multiple spot squeeze pile body simultaneously, realizes
The pile body in the section is broken, but which equipment price is high, simultaneously as stake diameter multiplicity needs mainframe to equipment investment height
Tool is used cooperatively, and easily causes to damage to reinforcing bar, is generated a large amount of concrete slags, should not be cleared up；Third is that chemical agent cuts pile crown, pass through
It being introduced into stake to by chemical substance, positioning conveyance conduit to cut-off position chemically reacts, swelling stress is generated, thus
By pile crown spalling, but this mode targeted duct is not easy to control, easily causes to damage to useful pile body, while medicament application is few, no
Preferably buy；Fourth is that water-jet method cuts pile crown can clearly be mixed using the water jet for having crunch in the case where not damaging reinforcing bar
Solidifying soil, but this mode manual operation risk is high, full-automatic mechanical is at high cost, big using difficulty, range is small.
Therefore known superfilled pile head cut processing mode there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is to propose that one kind avoids bonding between bored concrete pile main reinforcement in pile crown concrete and superfilled pile head
Cast-in-situ bored pile pile crown isolating device.
To achieve the above object, the technical solution of the invention is as follows:
A kind of cast-in-situ bored pile pile crown isolating device, including a pallet, several casings, it is characterised in that:
The pallet is circular ring shape plastic plate, plastics plate thickness >=40mm, plastic plate outer circumferential edges setting edge through-hole, edge
Number of openings is consistent with bored concrete pile main reinforcement quantity, the interior tooth screw thread for being 40mm equipped with depth in edge through-hole；Plastic plate center is set
There is concrete pump pipe access opening；
Described sleeve pipe is plastic tube, and plastics length of tube is equal to filling pile head reinforcing bar length+30mm, and plastics pipe diameter compares bored concrete pile
The big 15mm of main reinforcement diameter, plastics bottom of the tube are equipped with the outer tooth screw thread that length is 40mm；
Wherein: the interior tooth screwed connection of every plastics bottom of the tube outer tooth screw thread and plastic plate edge through-hole keeps plastic tube vertically solid
It is scheduled on the upper surface of plastic plate, reaches cast-in-situ bored pile pile crown isolating device.
Cast-in-situ bored pile pile crown isolating device of the invention can also be further achieved by the following technical measures.
Cast-in-situ bored pile pile crown isolating device above-mentioned, wherein the material of the pallet is PVC.
Cast-in-situ bored pile pile crown isolating device above-mentioned, wherein the material of the plastic tube is PVC.
Cast-in-situ bored pile pile crown isolating device above-mentioned, wherein the annulus outer diameter is 100mm smaller than grout pile diameter.
A kind of cast-in-situ bored pile pile crown isolating device application method, it is characterised in that the following steps are included:
A, prefabricated four brackets
Bracket is made into the reinforced steel bar ring of diameter 20mm using the reinforcing bar of C32, and the joint of reinforced steel bar ring carries out overlap joint welding, the lap of splice
For 10 times of bar diameters；
B, four brackets are buried
When Pile overhead reaches designed elevation, and before breast wall concrete pours, along the grout pile crown
Facial planes circumference exposes to half of ring of reinforced steel bar ring on the outside of breast wall concrete for holding to pre-buried four reinforced steel bar rings are arranged cross
Plastic plate is carried, another half of ring is cast in outer breast wall concrete；
C, cast-in-situ bored pile pile crown isolating device is installed, comprising the following steps:
(1) bored concrete pile main reinforcement is handled
Each bored concrete pile main reinforcement enters superfilled pile head position after the stretching of the steel reinforcement cage of bored concrete pile, is wrapped up with plastic film superfilled
The bored concrete pile main reinforcement (5) at pile crown position；
(2) each bored concrete pile main reinforcement through plastic film package is inserted into each plastic tube from plastic plate bottom respectively, makes plastic tube
Length be greater than the length of bored concrete pile main reinforcement, it is with bubble chamber film plug that plastic tube top opening is stifled real, then seal with adhesive tape；
(3) plastic plate is horizontally placed on four reinforcing bar semi-rings being exposed on the outside of breast wall concrete；
(4) make concrete pump pipe by through-hole, and movable in through-holes；
D, superfilled pile head concrete is poured
Superfilled pile head concrete is poured, pulls out superfilled pile head using simple hoisting machinery in subsequent taking-up superfilled pile head.
Cast-in-situ bored pile pile crown isolating device application method of the invention can also be using technical measures below come into one
Step is realized.
Method above-mentioned, wherein the plastic plate is positioned to precisely on four reinforcing bar semi-rings, guarantee pile crown length.
Method above-mentioned, wherein the overlapping splice of the reinforced steel bar ring wants firm welding.
After adopting the above technical scheme, cast-in-situ bored pile pile crown isolating device of the invention and its application method are with following
Advantage:
1, pile crown isolating device structure is simple, easy to make；
2, it avoids bonding phenomenon between pile crown concrete and pile crown main reinforcement, when removing pile crown, reinforcing bar is injury-free；
3, reduce that the consumings of manpower and material resources, construction efficiency be high, easy to operate, short time limit, reduction engineering cost.
Detailed description of the invention
Fig. 1 is the cast-in-situ bored pile pile crown isolating device structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the rack arrangement floor map of the embodiment of the present invention；
Fig. 3 is the use state diagram of the cast-in-situ bored pile pile crown isolating device of the embodiment of the present invention.
In figure: 1 pallet, 2 concrete pump pipe access openings, 3 casings, 4 brackets, 5 bored concrete pile main reinforcements, 6 bored concrete pile stirrups, 7 fill
Infuse stake, 8 concrete guard walls.The channel of hole pouring pile main reinforcement concrete pump pipe.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
Cast-in-situ bored pile pile crown isolating device of the invention, including a pallet, several casings.
It is the cast-in-situ bored pile pile crown isolating device structural schematic diagram of the embodiment of the present invention referring now to Fig. 1, Fig. 1.Such as figure
Shown, the pallet 1 is circular ring shape plastic plate, and edge through-hole, side is arranged with a thickness of 40mm, plastic plate outer circumferential edges in plastic plate
Edge number of openings is consistent with bored concrete pile main reinforcement quantity, the interior tooth screw thread for being 40mm equipped with depth in edge through-hole；Plastic plate center
Equipped with concrete pump pipe access opening 2；
Described sleeve pipe 3 is plastic tube, and plastics length of tube is equal to filling pile head reinforcing bar length+30mm, and plastics pipe diameter is than perfusion
The stake big 15mm of main reinforcement diameter, plastics bottom of the tube are equipped with the outer tooth screw thread that length is 40mm；
Wherein: the interior tooth screwed connection of every plastics bottom of the tube outer tooth screw thread and plastic plate edge through-hole keeps plastic tube vertically solid
It is scheduled on the upper surface of plastic plate, reaches cast-in-situ bored pile pile crown isolating device.The material of the pallet is PVC.The plastic tube
Material be PVC.The annulus outer diameter is 100mm smaller than grout pile diameter.
Embodiment 2
Fig. 3 is the use state diagram of the cast-in-situ bored pile pile crown isolating device of the embodiment of the present invention.Drilling of the invention fills
Infuse pile head isolating device application method, comprising the following steps:
A, prefabricated four brackets: bracket is made into the reinforced steel bar ring of diameter 20mm using the reinforcing bar of C32, and the joint of reinforced steel bar ring is taken
Welding is connect, the lap of splice is 10 times of bar diameters.
B, bury four brackets: Fig. 2 is the rack arrangement floor map of the embodiment of the present invention.When cast-in-situ bored pile pile crown
When top reaches designed elevation, and before breast wall concrete pours, along filling pile head top planes circumference to being arranged cross
Pre-buried four reinforced steel bar rings expose to half of ring of reinforced steel bar ring for carrying plastic plate on the outside of breast wall concrete, and another half of ring pours
It builds in outer breast wall concrete；The plastic plate is positioned to precisely on four reinforcing bar semi-rings, guarantee pile crown length.The steel
The overlapping splice of muscle ring wants firm welding.
C, cast-in-situ bored pile pile crown isolating device is installed, comprising the following steps:
(1) bored concrete pile main reinforcement is handled: each bored concrete pile main reinforcement enters superfilled pile head position after the stretching of the steel reinforcement cage of bored concrete pile,
With the bored concrete pile main reinforcement 5 at plastic film package superfilled pile head position.
(2) each bored concrete pile main reinforcement through plastic film package is inserted into each plastic tube from plastic plate bottom respectively, makes to mould
The length of expects pipe is greater than the length of bored concrete pile main reinforcement, with bubble chamber film plug that plastic tube top opening is stifled real, then seals with adhesive tape.
(3) plastic plate is horizontally placed on four reinforcing bar semi-rings being exposed on the outside of breast wall concrete.
(4) make concrete pump pipe by through-hole, and movable in through-holes.
D, it pours superfilled pile head concrete: pouring superfilled pile head concrete, in subsequent taking-up superfilled pile head using simple
Hoisting machinery pull out superfilled pile head.
The present invention has substantive distinguishing features and significant technological progress, cast-in-situ bored pile pile crown isolating device stake of the invention
Head isolating device structure is simple, easy to make, when abolishing superfilled concrete pile head, stake can effectively be avoided to cut pile crown quality
It is poor, time-consuming, the traditional problems such as the strong noise of work progress, a large amount of dust, meanwhile, the health of operator is protected,
It is environmentally protective, it improves work efficiency, save the cost, receives operator and management, the welcome using unit.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (7)
1. a kind of cast-in-situ bored pile pile crown isolating device, including a pallet, several casings, it is characterised in that:
The pallet is circular ring shape plastic plate, plastics plate thickness >=40mm, plastic plate outer circumferential edges setting edge through-hole, edge
Number of openings is consistent with bored concrete pile main reinforcement quantity, the interior tooth screw thread for being 40mm equipped with depth in edge through-hole；Plastic plate center is set
There is concrete pump pipe access opening；
Described sleeve pipe is plastic tube, and plastics length of tube is equal to filling pile head reinforcing bar length+30mm, and plastics pipe diameter compares bored concrete pile
The big 15mm of main reinforcement diameter, plastics bottom of the tube are equipped with the outer tooth screw thread that length is 40mm；
Wherein: the interior tooth screwed connection of every plastics bottom of the tube outer tooth screw thread and plastic plate edge through-hole keeps plastic tube vertically solid
It is scheduled on the upper surface of plastic plate, reaches cast-in-situ bored pile pile crown isolating device.
2. cast-in-situ bored pile pile crown isolating device as described in claim 1, which is characterized in that the material of the pallet is PVC.
3. cast-in-situ bored pile pile crown isolating device as described in claim 1, which is characterized in that the material of the plastic tube is
PVC。
4. cast-in-situ bored pile pile crown isolating device as described in claim 1, which is characterized in that the annulus outer diameter compares bored concrete pile
The small 100mm of stake diameter.
5. a kind of cast-in-situ bored pile pile crown isolating device application method as described in claim 1, it is characterised in that including following
Step:
A, prefabricated four brackets
Bracket is made into the reinforced steel bar ring of diameter 20mm using the reinforcing bar of C32, and the joint of reinforced steel bar ring carries out overlap joint welding, the lap of splice
For 10 times of bar diameters；
B, four brackets are buried
When Pile overhead reaches designed elevation, and before breast wall concrete pours, along the grout pile crown
Facial planes circumference exposes to half of ring of reinforced steel bar ring on the outside of breast wall concrete for holding to pre-buried four reinforced steel bar rings are arranged cross
Plastic plate is carried, another half of ring is cast in outer breast wall concrete；
C, cast-in-situ bored pile pile crown isolating device is installed, comprising the following steps:
(1) bored concrete pile main reinforcement is handled
Each bored concrete pile main reinforcement enters superfilled pile head position after the stretching of the steel reinforcement cage of bored concrete pile, is wrapped up with plastic film superfilled
The bored concrete pile main reinforcement (5) at pile crown position；
(2) each bored concrete pile main reinforcement through plastic film package is inserted into each plastic tube from plastic plate bottom respectively, makes plastic tube
Length be greater than the length of bored concrete pile main reinforcement, it is with bubble chamber film plug that plastic tube top opening is stifled real, then seal with adhesive tape；
(3) plastic plate is horizontally placed on four reinforcing bar semi-rings being exposed on the outside of breast wall concrete；
(4) make concrete pump pipe by through-hole, and movable in through-holes；
D, superfilled pile head concrete is poured
Superfilled pile head concrete is poured, pulls out superfilled pile head using simple hoisting machinery in subsequent taking-up superfilled pile head.
6. cast-in-situ bored pile pile crown isolating device application method as claimed in claim 5, which is characterized in that the plastic plate exists
It is positioned to precisely on four reinforcing bar semi-rings, guarantee pile crown length.
7. cast-in-situ bored pile pile crown isolating device application method as claimed in claim 5, which is characterized in that the reinforced steel bar ring
Overlapping splice wants firm welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547705.XA CN109629557A (en) | 2018-12-18 | 2018-12-18 | A kind of cast-in-situ bored pile pile crown isolating device and its application method |
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| CN201811547705.XA CN109629557A (en) | 2018-12-18 | 2018-12-18 | A kind of cast-in-situ bored pile pile crown isolating device and its application method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989394A (en) * | 2019-05-14 | 2019-07-09 | 贵州建工集团有限公司 | A kind of cast-in-place concrete pile section stake partition and its construction method |
| CN110700259A (en) * | 2019-11-06 | 2020-01-17 | 陕西建工第八建设集团有限公司 | Breaking device and method for breaking super-poured concrete of underground continuous wall in advance |
| CN111395342A (en) * | 2020-03-26 | 2020-07-10 | 中国一冶集团有限公司 | Construction method for cast-in-place pile broken pile head, auxiliary isolation net and preparation method of auxiliary isolation net |
| CN111877312A (en) * | 2020-07-13 | 2020-11-03 | 中国一冶集团有限公司 | Pile head separation type device and pile breaking construction method |
| CN113089669A (en) * | 2021-03-29 | 2021-07-09 | 中国十九冶集团有限公司 | Pile head breaking device for large-diameter cast-in-place pile and using method thereof |
| CN113293755A (en) * | 2021-05-28 | 2021-08-24 | 福建九鼎建设集团有限公司 | Pile head isolation device and construction operation method thereof |
| CN113737794A (en) * | 2021-08-30 | 2021-12-03 | 中交二航局第一工程有限公司 | Fast cut-off device for pile head of cast-in-situ bored pile and use method thereof |
| CN114108606A (en) * | 2020-08-31 | 2022-03-01 | 兰代根 | Bored concrete pile cuts stake and reserves reinforcing bar protection device fast |
| CN117569363A (en) * | 2024-01-16 | 2024-02-20 | 江苏神禹港务工程有限公司 | Connecting device and connecting method for PHC pipe pile and high-strength prestress bearing platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995640A (en) * | 2012-12-31 | 2013-03-27 | 龚正圣 | Combined partition device used for chiseling pouring pile head concrete and dismounting method thereof |
| CN204343285U (en) * | 2014-11-13 | 2015-05-20 | 中交隧道工程局有限公司 | A kind of pile foundation pile crown entirety abolishes structure |
| CN108193684A (en) * | 2017-12-18 | 2018-06-22 | 中国二十冶集团有限公司 | Cast-in-situ bored pile pile crown detaches removing method |
| CN108411918A (en) * | 2018-03-27 | 2018-08-17 | 中国冶集团有限公司 | Pore-creating filling pile pile crown abolishes device and its construction method |
| CN108547303A (en) * | 2018-04-11 | 2018-09-18 | 云南建投基础工程有限责任公司 | A kind of filling pile head abolishes auxiliary device and pile crown restructuring bankrupt |
| CN207974103U (en) * | 2018-01-26 | 2018-10-16 | 中国建筑第八工程局有限公司 | The isolating device of cast-in-situ bored pile pile crown |
-
2018
- 2018-12-18 CN CN201811547705.XA patent/CN109629557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995640A (en) * | 2012-12-31 | 2013-03-27 | 龚正圣 | Combined partition device used for chiseling pouring pile head concrete and dismounting method thereof |
| CN204343285U (en) * | 2014-11-13 | 2015-05-20 | 中交隧道工程局有限公司 | A kind of pile foundation pile crown entirety abolishes structure |
| CN108193684A (en) * | 2017-12-18 | 2018-06-22 | 中国二十冶集团有限公司 | Cast-in-situ bored pile pile crown detaches removing method |
| CN207974103U (en) * | 2018-01-26 | 2018-10-16 | 中国建筑第八工程局有限公司 | The isolating device of cast-in-situ bored pile pile crown |
| CN108411918A (en) * | 2018-03-27 | 2018-08-17 | 中国冶集团有限公司 | Pore-creating filling pile pile crown abolishes device and its construction method |
| CN108547303A (en) * | 2018-04-11 | 2018-09-18 | 云南建投基础工程有限责任公司 | A kind of filling pile head abolishes auxiliary device and pile crown restructuring bankrupt |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989394A (en) * | 2019-05-14 | 2019-07-09 | 贵州建工集团有限公司 | A kind of cast-in-place concrete pile section stake partition and its construction method |
| CN110700259B (en) * | 2019-11-06 | 2024-05-31 | 陕西建工第八建设集团有限公司 | Device and method for advanced breaking of underground diaphragm wall superfilling concrete |
| CN110700259A (en) * | 2019-11-06 | 2020-01-17 | 陕西建工第八建设集团有限公司 | Breaking device and method for breaking super-poured concrete of underground continuous wall in advance |
| CN111395342A (en) * | 2020-03-26 | 2020-07-10 | 中国一冶集团有限公司 | Construction method for cast-in-place pile broken pile head, auxiliary isolation net and preparation method of auxiliary isolation net |
| CN111877312A (en) * | 2020-07-13 | 2020-11-03 | 中国一冶集团有限公司 | Pile head separation type device and pile breaking construction method |
| CN111877312B (en) * | 2020-07-13 | 2022-05-20 | 中国一冶集团有限公司 | Pile head separation type device and pile breaking construction method |
| CN114108606A (en) * | 2020-08-31 | 2022-03-01 | 兰代根 | Bored concrete pile cuts stake and reserves reinforcing bar protection device fast |
| CN113089669A (en) * | 2021-03-29 | 2021-07-09 | 中国十九冶集团有限公司 | Pile head breaking device for large-diameter cast-in-place pile and using method thereof |
| CN113293755A (en) * | 2021-05-28 | 2021-08-24 | 福建九鼎建设集团有限公司 | Pile head isolation device and construction operation method thereof |
| CN113737794A (en) * | 2021-08-30 | 2021-12-03 | 中交二航局第一工程有限公司 | Fast cut-off device for pile head of cast-in-situ bored pile and use method thereof |
| CN113737794B (en) * | 2021-08-30 | 2023-02-24 | 中交二航局第一工程有限公司 | Fast cut-off device for pile head of cast-in-situ bored pile and use method thereof |
| CN117569363A (en) * | 2024-01-16 | 2024-02-20 | 江苏神禹港务工程有限公司 | Connecting device and connecting method for PHC pipe pile and high-strength prestress bearing platform |
| CN117569363B (en) * | 2024-01-16 | 2024-04-09 | 江苏神禹港务工程有限公司 | Pile foundation supergrouting concrete removing device and method thereof |
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