CN114855789A - Construction method for broken pile treatment of engineering pile in soft soil area - Google Patents
Construction method for broken pile treatment of engineering pile in soft soil area Download PDFInfo
- Publication number
- CN114855789A CN114855789A CN202210306891.8A CN202210306891A CN114855789A CN 114855789 A CN114855789 A CN 114855789A CN 202210306891 A CN202210306891 A CN 202210306891A CN 114855789 A CN114855789 A CN 114855789A
- Authority
- CN
- China
- Prior art keywords
- pile
- section
- steel casing
- concrete
- hole
- Prior art date
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 2
- 230000008439 repair process Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- 241000202564 Kalopanax Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- 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
- E02D5/64—Repairing piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- 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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the technical field of pile breaking treatment, and relates to a pile breaking treatment construction method for engineering piles in a soft soil area, which comprises the following steps: construction preparation, leveling a field, and measuring the center of an excavated hole; digging a first section of hole, crushing if meeting the pile body, transporting out along with earthwork, and placing a first section of steel casing after forming the hole; continuously excavating a next section of hole by downward exploration, placing a next section of steel casing after hole forming, wherein the diameter of the next section of steel casing is smaller than that of the previous section of steel casing; gradually descending to the pile fracture part to form a complete pile hole; placing concrete sleeves section by section in the pile hole, hanging a corresponding section of steel casing when placing a section of concrete sleeve, and sequentially pushing until the steel casing is completely pulled out; and placing a steel reinforcement cage and pouring pile body concrete. The construction method for treating broken engineering piles in soft soil areas has the advantages of low cost, simplicity, convenience, practicability, safety and reliability.
Description
Technical Field
The invention belongs to the technical field of pile breaking treatment, and relates to a construction method for pile breaking treatment of engineering piles in a soft soil area.
Background
The soil quality of coastal areas is poor, and basements of high-rise buildings are often puzzled by silt or silt clay in construction. Especially, the quality of the engineering pile is affected by carelessness during foundation pit enclosure, earth excavation and transportation, especially in thin-wall prestressed pipe pile engineering, the engineering pile is inclined by a light person, and the pile is broken in serious cases. According to several engineering surveys, engineering piles are broken due to instability of foundation pits, excavator collision and soil carrying of automobiles, and the broken parts are generally 2-6 m below the elevation of the effective pile top (namely the pit bottom). At present, the solution of the engineering pile fracture only adopts post treatment of pile repair or anchor static pressure pile, the cost is high, and the construction period is long.
Disclosure of Invention
The invention provides a construction method for treating broken engineering piles in soft soil areas, which aims at the difference of the prior art and has the advantages of low cost, simplicity, convenience, practicability, safety and reliability.
In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:
the construction method for treating broken piles of engineering piles in soft soil areas comprises the following steps:
(1) construction preparation, leveling a field, and measuring the center of an excavated hole;
(2) digging a first section of hole, crushing if meeting the pile body, transporting out along with earthwork, and placing a first section of steel casing after forming the hole;
(3) continuously excavating a next section of hole by downward exploration, if meeting the pile body, crushing, carrying out along with the earth, placing a next section of steel casing after hole forming, wherein the diameter of the next section of steel casing is smaller than that of the previous section of steel casing;
(4) repeating the step (3), and gradually descending to the pile fracture part to form a complete pile hole;
(5) placing concrete sleeves section by section in the pile hole, hanging a corresponding section of steel casing when placing a section of concrete sleeve, filling sand around the concrete sleeve for fixation, and sequentially recurrently pulling out the steel casing to complete the installation of the concrete sleeve;
(6) and placing a steel reinforcement cage and pouring pile body concrete.
In the construction method for treating broken engineering piles in the soft soil area, when construction preparation is carried out in the step (1), if the engineering piles are obviously inclined, the broken engineering piles can be judged, the broken parts can be moved to the most prominent positions (generally between 2 and 6 meters) according to the deep layer of the foundation pit enclosure, and the centers of the excavation holes are generally the positions of the piles entering the soil.
In the construction method for pile breaking treatment of engineering piles in the soft soil area, in the steps (2) and (3), the steel casing is rolled into a circular casing by a steel plate, the thickness of the steel plate is 3-5 mm, and preferably, the steel plate is an A3 steel plate. In the steps (2) and (3), after the steel casing is placed, checking and adjusting the verticality of the upper casing and the lower casing, and then continuously digging holes.
In the construction method for treating broken engineering piles in the soft soil area, the height of the steel casing is 800-1200 mm, the diameter of the steel casing is 1000-1800 mm, and the diameter of the next section of steel casing is 80-120 mm smaller than that of the previous section of steel casing. Preferably, the height of the steel casing is 1000mm, the minimum diameter of the steel casing is 1000mm, and the diameter difference between adjacent steel casings is 100 mm.
In the construction method for treating broken piles of engineering piles in the soft soil area, the excavation depth of the first section of hole is smaller than the height of the first section of steel casing; preferably, after the first section of steel casing is placed, the upper end face of the first section of steel casing is 100-200 mm higher than the ground. After placement, the edge of the first section of steel casing is slightly above the ground to prevent surface water from flowing into the hole during operation.
In the construction method for treating broken piles of engineering piles in the soft soil area, whether the pile body is complete or not is judged through small strain detection in the construction process, the small strain detection is carried out when the pile is dug to the pile breaking elevation, the next section of steel casing is stopped to be placed after the small strain judgment that the pile body is complete, the small strain detection can accurately judge the depth of the broken part, and a reliable basis is provided for repair work.
In the construction method for treating broken engineering piles in the soft soil area, when the concrete pipe piles are connected, the reinforcement cage extends to the position of less than 1000mm of breakage, and can form a whole after concrete is poured so as to ensure the bearing capacity of the pile body; when the concrete filling pile is connected, the reinforcement cage is overlapped with the original pile by more than 1000mm, after the hole is formed, the crack condition needs to be checked, and loose concrete slag is chiseled off to enable the section of the pile to be flat. Cleaning, then placing the steel bars, and pouring concrete. Ensuring the newly poured concrete to be compact.
In the construction method for treating broken engineering piles in the soft soil area, when concrete pipe piles are connected, the concrete grade used for concrete pouring is higher than the concrete strength of the bearing platform by one level; when the concrete pouring pile is connected, the concrete mark used for concrete pouring is higher than the concrete strength of the pile body of the concrete pouring pile by one level, and a layer of cement mortar is paved at the bottom of the hole.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a novel construction method for treating broken engineering piles, which utilizes multi-stage steel casing to downwards probe step by step to form pile holes, has the advantages of well-ordered working procedures, low cost, simplicity, convenience, practicability, safety and reliability, and is particularly suitable for breaking prestressed pipe piles and cast-in-place piles caused by unstable foundation pit supporting, excavator collision and soil transportation of automobiles in soft soil areas. The construction method effectively solves the problem of repairing the broken engineering pile, because the hole digging of the steel casing is safe and reliable, and the used machines are portable, the construction method is easy to popularize, if the pile is broken more, the construction method can be simultaneously operated in groups (the spacing distance is more than 4m), the construction period can be obviously shortened, and the cost is only about one tenth of that of pile repairing.
2. The steel casing can be used in a turnover mode, and the steel casing is few in related equipment, so that the steel casing is economical and applicable, and is convenient and flexible to install and dismantle. The hole can be assembled and implemented no matter how deep or shallow, and the adaptability is strong.
3. The invention can accurately judge the depth of the broken part through small strain detection, and can intuitively and accurately drill the pile and dig the hole to the broken part of the pile. As long as the key links are emphasized, the safe construction and the pile repair quality are reliably guaranteed.
4. The hole forming process is gradual, the steel casing is used for protection, the diameter and the depth of a hole to be dug are limited, and the hole is a round hole, so that accidents such as collapse can be avoided.
Drawings
FIG. 1 construction process flow
Detailed Description
The present invention is further described in the following description of the specific embodiments, which is not intended to limit the invention, but various modifications and improvements can be made by those skilled in the art based on the basic idea of the invention, but the scope of the invention is within the scope of the invention as long as they do not depart from the basic idea of the invention.
Referring to fig. 1, the specific construction process of the embodiment is as follows:
1. preparation of construction materials
A steel plate casing with the thickness of 3mm to 5mm and the diameter of phi 1000mm to phi 1800mm, a manual winch, a kalopanax septempunctata, a chisel, an air compressor, an air pick, a plumb bob, a measuring tape, an inserted vibrator, a water pump and commercial concrete.
2. Preparation for construction
And (4) finishing the steel casing (surface smoothness, weld seam repair, firmness of the hanging ring and the like), counting the quantity and specification and ensuring the matching. The concrete sleeves are put into the field and stacked orderly for use.
And (5) leveling the field, and measuring the center of the excavated hole.
3. Digging hole and installing first section of steel casing
And digging holes with the same diameter of the steel casing, wherein the depth of each hole is 800mm, and if the pile body is broken in case of meeting, the pile body is transported out along with earthwork. After the hole is formed, the steel protective cylinder can be installed, and the edge of the steel protective cylinder is slightly higher than the ground so as to prevent surface water from flowing into the hole during operation.
4. Continuously digging hole and installing steel protective cylinder
And (5) continuously digging holes with the depth of 1000mm, crushing the pile body if meeting, trimming and forming the holes, and installing a second section of steel casing. The manual winch for well digging is adopted to hoist the earthwork, and the rope, the lifting hook and the connecting part of the artificial winch need to be checked at any time and replaced in time if damaged. The removed earth and stone should be transported away from the hole opening in time, and should not be stacked within 1m around the hole opening, and the driving of the motor vehicle should not affect the safety of the well wall. Repeating the processes, and sequentially recurrently obtaining the fracture position of the pile.
5. Small strain detection
And when the pile is dug to the height mark of the broken pile, removing concrete slag and accumulated water, flattening the surface, and performing small strain detection. And after the lower pile body is detected to be complete through small strain, the follow-up operation is continued.
6. Mounting concrete sleeve
And hanging the prefabricated concrete sleeve section by section, replacing a section of steel casing when the concrete sleeve is installed, and hanging the steel casing out by a winch. And filling sand around the concrete sleeve for fixing. And sequentially recursing until the steel casing is completely pulled out, and finishing the installation of the concrete sleeve.
7. Installation steel reinforcement cage
And (4) mounting the prefabricated concrete sleeve in place, hoisting the reinforcement cage, and then carrying out concealed engineering acceptance of the reinforcement cage.
8. Pouring pile body
And pouring pile body concrete after acceptance. When the precast pile is connected, the reinforcement cage extends to a fracture of less than 1000 mm; when the cast-in-place pile is connected, the reinforcement cage is overlapped with the original pile by more than 1000 mm. When the pile body concrete is poured, the concrete must pass through the chute. When the height exceeds 3m, a stringing barrel is used. The concrete is compacted by an inserted vibrator.
9. Quality control
The quality requirements of the raw materials are as follows: the materials such as the related steel plate, the steel wire rope, the steel bar and the like meet the national standard and have the qualification certificate.
The steel casing is installed in a leveling mode, and the deviation between the center line of the walling crib and the center line of the pile is not larger than 20 mm. The central line of the concrete sleeve is consistent with the central line of the engineering pile, the deviation of the axial line is less than 50mm, and the deviation of the effective diameter of the section of the pile body is plus 50 to minus 0 mm.
Strictly executing the number of concrete structure reinforcement design specifications as GB50367-2006 and the number of concrete structure construction quality acceptance specifications as GB50704-2002, and executing the building construction safety inspection standard GJ59-99 in the construction process.
Claims (9)
1. The construction method for treating broken engineering piles in the soft soil area is characterized by comprising the following steps:
(1) construction preparation, leveling a field, and measuring the center of an excavated hole;
(2) digging a first section of hole, crushing if meeting the pile body, transporting out along with earthwork, and placing a first section of steel casing after forming the hole;
(3) continuously excavating a next section of hole by downward exploration, if meeting the pile body, crushing, carrying out along with the earth, placing a next section of steel casing after hole forming, wherein the diameter of the next section of steel casing is smaller than that of the previous section of steel casing;
(4) repeating the step (3), and gradually descending to the pile fracture part to form a complete pile hole;
(5) placing concrete sleeves section by section in the pile hole, hanging a corresponding section of steel casing when placing a section of concrete sleeve, filling sand around the concrete sleeve for fixation, and sequentially recurrently pulling out the steel casing to complete the installation of the concrete sleeve;
(6) and placing a steel reinforcement cage and pouring pile body concrete.
2. The construction method for broken pile processing in engineering piles in soft soil areas according to claim 1, wherein whether the pile body is complete or not is judged through small strain detection in the construction process, the small strain detection is carried out when the pile body is dug to the pile breaking elevation, and the placement of the next section of steel casing is stopped after the small strain judgment that the pile body is complete.
3. The construction method for pile-breaking treatment of engineering piles in soft soil areas according to claim 1, wherein the steel casing is a circular casing made of steel plates, and the thickness of the steel plates is 3mm to 5 mm.
4. The construction method for pile breaking treatment of the engineering pile in the soft soil area according to claim 1, wherein the height of the steel casing is 800-1200 mm, the diameter of the steel casing is 1000-1800 mm, and the diameter of the next section of the steel casing is 80-120 mm smaller than that of the previous section of the steel casing.
5. A soft soil area engineering pile broken pile processing construction method as claimed in claim 1, wherein the height of the steel casing is 1000mm, the minimum diameter of the steel casing is 1000mm, and the diameter difference of adjacent steel casings is 100 mm.
6. The construction method for pile-breaking treatment of engineering piles in soft soil areas according to claim 1, wherein the excavation depth of the first section of hole is smaller than the height of the first section of steel casing.
7. A soft soil area engineering pile broken pile processing construction method as claimed in claim 5, wherein after the first section of steel casing is placed, the upper end face of the first section of steel casing is 100-200 mm higher than the ground.
8. The construction method for pile-breaking treatment of engineering piles in soft soil areas according to claim 1, wherein when a concrete pipe pile is connected, the reinforcement cage extends to a breaking position of less than 1000 mm; when the concrete filling pile is connected, the reinforcement cage is overlapped with the original pile by more than 1000 mm.
9. The construction method for pile-breaking treatment of engineering piles in soft soil areas according to claim 1, wherein when connecting concrete pipe piles, the concrete grade used for concrete pouring is one level higher than the concrete strength of a bearing platform; when the concrete pouring pile is connected, the concrete mark used for concrete pouring is higher than the concrete strength of the pile body of the concrete pouring pile by one level, and a layer of cement mortar is paved at the bottom of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306891.8A CN114855789A (en) | 2022-03-25 | 2022-03-25 | Construction method for broken pile treatment of engineering pile in soft soil area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306891.8A CN114855789A (en) | 2022-03-25 | 2022-03-25 | Construction method for broken pile treatment of engineering pile in soft soil area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114855789A true CN114855789A (en) | 2022-08-05 |
Family
ID=82629793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210306891.8A Pending CN114855789A (en) | 2022-03-25 | 2022-03-25 | Construction method for broken pile treatment of engineering pile in soft soil area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114855789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733048A (en) * | 2023-08-10 | 2023-09-12 | 中建四局建设发展有限公司 | Pile splicing structure of soft soil foundation filling pile and construction method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3780975A (en) * | 1971-11-23 | 1973-12-25 | L Turzillo | Means for producing cast-in-place structures in situ |
| CN103526747A (en) * | 2013-09-26 | 2014-01-22 | 浙江钱塘江水利建筑工程公司 | Construction method for impact holing of filling pile in tidal environment |
| CN103953054A (en) * | 2014-04-01 | 2014-07-30 | 中铁大桥局集团第一工程有限公司 | Dry-sealed concrete pile foundation for protecting pile head reinforcement and construction method thereof |
| CN106284314A (en) * | 2016-08-31 | 2017-01-04 | 中冶建工集团有限公司 | Karst landform spiral-digging pore cast-in-place pile construction method |
| JP2018119385A (en) * | 2017-01-27 | 2018-08-02 | 三谷セキサン株式会社 | Sc pile having axial reinforcement, method for manufacturing sc pile having axial reinforcement, and method for exposing axial reinforcement of sc pile |
| CN108914932A (en) * | 2018-07-16 | 2018-11-30 | 中建四局第建筑工程有限公司 | A kind of pile for prestressed pipe pile connection construction method and device |
| CN109056706A (en) * | 2018-08-03 | 2018-12-21 | 上海宝冶集团有限公司 | A kind of Karst Geological Landscape poured pile base construction method |
| CN109083182A (en) * | 2018-09-25 | 2018-12-25 | 中铁二十三局集团第三工程有限公司 | Collapsible loess super long large diameter pile foundation churning driven dry method construction method |
| CN110872842A (en) * | 2019-11-27 | 2020-03-10 | 甘肃建投建设有限公司 | Saturated sand rock stratum occlusive water-stop pile supporting system and construction method thereof |
| CN111395322A (en) * | 2020-04-07 | 2020-07-10 | 中铁十二局集团建筑安装工程有限公司 | Construction method for rotary digging cast-in-place pile under karst landform |
| CN212052725U (en) * | 2020-02-28 | 2020-12-01 | 江西建工第一建筑有限责任公司 | Karst cave area stake construction structures |
| CN112523202A (en) * | 2020-11-23 | 2021-03-19 | 中冶交通建设集团有限公司 | Broken pile treatment construction method for cast-in-situ bored pile |
| CN113404042A (en) * | 2021-07-06 | 2021-09-17 | 中铁二十局集团第六工程有限公司 | Bridge pile position construction method |
| CN113445498A (en) * | 2021-02-05 | 2021-09-28 | 中铁八局集团有限公司 | Construction process of karst hole pile foundation in complex geology |
| CN114164823A (en) * | 2021-11-10 | 2022-03-11 | 中交第四航务工程局有限公司 | Pile foundation construction method in high-fill foundation |
-
2022
- 2022-03-25 CN CN202210306891.8A patent/CN114855789A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3780975A (en) * | 1971-11-23 | 1973-12-25 | L Turzillo | Means for producing cast-in-place structures in situ |
| CN103526747A (en) * | 2013-09-26 | 2014-01-22 | 浙江钱塘江水利建筑工程公司 | Construction method for impact holing of filling pile in tidal environment |
| CN103953054A (en) * | 2014-04-01 | 2014-07-30 | 中铁大桥局集团第一工程有限公司 | Dry-sealed concrete pile foundation for protecting pile head reinforcement and construction method thereof |
| CN106284314A (en) * | 2016-08-31 | 2017-01-04 | 中冶建工集团有限公司 | Karst landform spiral-digging pore cast-in-place pile construction method |
| JP2018119385A (en) * | 2017-01-27 | 2018-08-02 | 三谷セキサン株式会社 | Sc pile having axial reinforcement, method for manufacturing sc pile having axial reinforcement, and method for exposing axial reinforcement of sc pile |
| CN108914932A (en) * | 2018-07-16 | 2018-11-30 | 中建四局第建筑工程有限公司 | A kind of pile for prestressed pipe pile connection construction method and device |
| CN109056706A (en) * | 2018-08-03 | 2018-12-21 | 上海宝冶集团有限公司 | A kind of Karst Geological Landscape poured pile base construction method |
| CN109083182A (en) * | 2018-09-25 | 2018-12-25 | 中铁二十三局集团第三工程有限公司 | Collapsible loess super long large diameter pile foundation churning driven dry method construction method |
| CN110872842A (en) * | 2019-11-27 | 2020-03-10 | 甘肃建投建设有限公司 | Saturated sand rock stratum occlusive water-stop pile supporting system and construction method thereof |
| CN212052725U (en) * | 2020-02-28 | 2020-12-01 | 江西建工第一建筑有限责任公司 | Karst cave area stake construction structures |
| CN111395322A (en) * | 2020-04-07 | 2020-07-10 | 中铁十二局集团建筑安装工程有限公司 | Construction method for rotary digging cast-in-place pile under karst landform |
| CN112523202A (en) * | 2020-11-23 | 2021-03-19 | 中冶交通建设集团有限公司 | Broken pile treatment construction method for cast-in-situ bored pile |
| CN113445498A (en) * | 2021-02-05 | 2021-09-28 | 中铁八局集团有限公司 | Construction process of karst hole pile foundation in complex geology |
| CN113404042A (en) * | 2021-07-06 | 2021-09-17 | 中铁二十局集团第六工程有限公司 | Bridge pile position construction method |
| CN114164823A (en) * | 2021-11-10 | 2022-03-11 | 中交第四航务工程局有限公司 | Pile foundation construction method in high-fill foundation |
Non-Patent Citations (1)
| Title |
|---|
| 黄茂兴;: "探讨不良地质条件下桩基工程接桩的施工方案", 中国高新技术企业, no. 24, pages 138 - 139 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733048A (en) * | 2023-08-10 | 2023-09-12 | 中建四局建设发展有限公司 | Pile splicing structure of soft soil foundation filling pile and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108894214B (en) | Karst cave geological environment cast-in-place pile and pile-forming construction method thereof | |
| CN111456019A (en) | Safe construction method for foundation pit excavation | |
| CN110387879B (en) | Concrete cast-in-place pile construction method for hydraulically vibrating and hammering immersed tube | |
| CN111335306A (en) | Rapid construction method for deep and thick hard rock section drilled pile | |
| CN112030956A (en) | Karst stratum bored pile construction method | |
| CN104480929B (en) | A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement | |
| CN113174961B (en) | Foundation pit slope supporting method | |
| CN111395322A (en) | Construction method for rotary digging cast-in-place pile under karst landform | |
| CN113216832A (en) | Water-mill drilling construction method for pile hole in karst area | |
| CN106948347B (en) | Pile pulling method and pile pulling system | |
| CN112411530A (en) | Construction method for controlling verticality of sea-filling stratum casing secant pile | |
| CN112012197A (en) | Manual hole digging pile and construction method thereof | |
| CN111236208A (en) | Underground diaphragm wall foundation pit construction method | |
| CN114855789A (en) | Construction method for broken pile treatment of engineering pile in soft soil area | |
| CN114045854A (en) | Bridge pile foundation composite construction method under complex geological condition | |
| CN106968252B (en) | Pile pulling recharging method and pile pulling recharging system | |
| JP2019148070A (en) | Construction method of underground structure | |
| CN111535305A (en) | Construction method of cast-in-situ bored pile for air well | |
| CN115217112A (en) | Deep foundation pit construction method | |
| CN114837209A (en) | Construction method of deep sand layer large-diameter pile foundation in karst development area | |
| CN111705790A (en) | Large-diameter bottom expanding construction method for firm rock mass machinery | |
| CN112726565A (en) | Construction method for rotary digging pile penetrating through construction waste | |
| CN111676960A (en) | Construction method for pre-splicing stirrups of large rectangular piles in complex site | |
| CN111411634A (en) | Method for manual hole digging pile operation on slope | |
| CN113123793B (en) | Weak stratum vertical shaft derrick structure and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |