CN110578326B - Manual hole digging pile structure and construction method thereof - Google Patents
Manual hole digging pile structure and construction method thereof Download PDFInfo
- Publication number
- CN110578326B CN110578326B CN201910972460.3A CN201910972460A CN110578326B CN 110578326 B CN110578326 B CN 110578326B CN 201910972460 A CN201910972460 A CN 201910972460A CN 110578326 B CN110578326 B CN 110578326B
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 13
- 230000002787 reinforcement Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000004568 cement Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- 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
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)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention relates to the technical field of manual hole digging piles and provides a manual hole digging pile structure and a construction method thereof. According to the invention, after pile holes are excavated in a segmented manner, a retaining wall structure formed by casting concrete is not adopted, the wall plates are directly adopted as primary support and waterproof structures, the steel frame is arranged on the inner side of the wall plates in a surrounding manner to form an integral ring, so that the reinforcing structure is realized, meanwhile, the steel frame is used as a skeleton main body of the pile hole casting concrete, and a reinforcement cage is not required to be arranged after the pile holes are excavated, so that the pile holes are formed at one time, and the problem of poor structural consistency caused by casting concrete in different time periods is avoided.
Description
Technical Field
The invention belongs to the technical field of manual hole digging piles, and particularly relates to a manual hole digging pile structure and a construction method thereof.
Background
The manual hole digging pile is one of important pile forming modes, has the characteristics of flexible pile body diameter, low cost, high construction efficiency and the like, and is commonly applied nowadays. The manual hole digging pile is formed by firstly adopting a manual digging method to carry out hole forming and pouring concrete, but the manual hole digging pile is easy to collapse in the digging process due to the manual digging mode, so that great potential safety hazard exists. In the prior art, manual hole digging piles are dug from top to bottom in a sectional manner in the construction process, in order to avoid hole wall collapse, concrete retaining walls are cast after each section is dug, a certain time is needed for forming the concrete retaining walls, the connection consistency of the concrete retaining walls of the upper section and the lower section is poor due to the fact that the concrete for casting in sections is different in casting time, gaps are easy to exist between the concrete retaining walls of the upper section and the lower section, and finally the integral instability of the retaining wall structure of the manual hole digging piles is caused. In addition, in the region with abundant groundwater, a large amount of groundwater is required to be pumped out, and sedimentation of surrounding roads and pipelines is easy to occur, so that the construction of the retaining wall is required to be strictly grasped.
Disclosure of Invention
The invention aims to provide a manual hole digging pile structure, which does not adopt a concrete casting retaining wall structure, ensures the stability of the manual hole digging pile structure and prevents water seepage.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the manual hole digging pile structure comprises a pile hole which is excavated from top to bottom in a segmented mode, wherein a retaining wall is arranged on the inner wall of the pile hole in a segmented mode from top to bottom, the retaining wall comprises a cylindrical wall plate, the outer side of the wall plate is connected with the inner wall of the pile hole, and an annular steel frame is connected with the inner side of the wall plate; the wall plate is formed by encircling a plurality of arc sections, and the steel frame is split into a plurality of sections and connected with the inner sides of the arc sections.
Optionally, the pile further comprises a U-shaped fixing piece, wherein the circular arc sections are provided with mounting holes, and the U-shaped fixing piece penetrates through the mounting holes on two adjacent circular arc sections to be connected with the inner wall of the pile hole.
Optionally, the wallboard is evenly divided into four circular arc sections, and a reinforcing rod is connected between the steelframe on any two circular arc sections.
Optionally, the grouting device further comprises a grouting pipe, and grouting holes for the grouting pipe to pass through are uniformly formed in the circular arc section.
Optionally, the port cooperation of slip casting pipe is connected with the plugging cap, the steelframe with the exposed part of slip casting pipe is connected, and two adjacent steelframes pass through welded connection.
The invention also aims to provide a construction method of the manual hole digging pile structure, which does not adopt a concrete casting retaining wall structure, ensures the stability of the manual hole digging pile structure and prevents water seepage.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a construction method of a manual hole digging pile structure comprises the following steps:
A. Excavating soil at the orifice of a pile hole to be constructed, and excavating downwards layer by layer in a sectional manner;
B. After the first section of pile hole is excavated, hanging down the arc section from the hole opening, temporarily fixing the arc section and the inner wall of the pile hole, and when the next section of arc section is hung down, connecting the two adjacent arc sections by the U-shaped fixing piece through the mounting hole, simultaneously connecting the arc section and the inner wall of the pile hole, and finally finishing the fixation of the wallboard;
C. then correspondingly connecting the steel frames with the arc sections, connecting reinforcing rods between the steel frames on any two arc sections, and reserving enough construction areas in the enclosed space of the reinforcing rods to facilitate tool transportation and personnel passing;
D. Digging a pile hole of the next section, repeating the step B, C to install a wallboard, a steel frame, a U-shaped fixing piece and a reinforcing rod, wherein the upper arc section and the lower arc section are connected through the U-shaped fixing piece, and the upper arc section and the lower arc section are arranged in a staggered manner;
E. And pouring the pile hole until the pile hole is completely excavated, continuously vibrating and exhausting air in the pouring process, and forming the manual hole digging pile once.
The step B also comprises the following contents: before the wallboard is installed, concrete is sprayed on the inner wall of the pile hole, then the arc sections are installed, the concrete is condensed to enable the arc sections to be fixedly connected with the inner wall of the pile hole in advance, after the wallboard is installed, concrete is sprayed on the joint of two adjacent arc sections, and in the step D, concrete is sprayed on the joint of two adjacent arc sections.
The step C also comprises the following contents: after the wallboard is installed, the grouting pipe is obliquely downwards driven into the grouting pipe from the grouting hole on the circular arc section, the grouting pipe is annularly distributed on the inner wall of the pile hole, the grouting pipe is connected with the grouting pump through the grouting hose, grouting is started, the port of the grouting pipe is plugged by the plugging cap after grouting is completed, then the steel frame is hung on the exposed part of the grouting pipe, the nut is fastened, the steel bar of the steel frame is tightly clamped by the included angle formed by the grouting pipe and the nut, and then the multi-section steel frame is connected into a whole.
The step A also comprises the following contents: and cleaning the site at the orifice of the pile hole to be constructed, measuring and positioning the orifice of the pile hole, and arranging a concrete guard ring at the orifice of the pile hole.
Compared with the prior art, the invention does not adopt a retaining wall structure formed by casting concrete after pile holes are excavated in a sectionalized way, directly adopts the wallboard as an initial support and waterproof structure, the steel frame is arranged on the inner side of the wallboard and surrounds the wallboard to form an integral ring to play a role of reinforcing structure, and meanwhile, the steel frame is used as a skeleton main body of the pile hole casting concrete, and a reinforcement cage is not required to be arranged after the pile holes are excavated, so that the pile holes are formed at one time, and the problem of poor structural consistency caused by casting concrete in different time periods is avoided.
Drawings
FIG. 1 is a schematic front view in section of the present invention;
FIG. 2 is a schematic top view in cross section of the present invention;
FIG. 3 is a schematic view of an arrangement of upper and lower arc segments;
FIG. 4 is a schematic view of a U-shaped fastener;
FIG. 5 is a schematic diagram of the cooperation of grouting pipes and steel frames.
Reference numerals:
1. pile holes; 2. a retaining wall; 21. a wall plate; 211. a circular arc section; 22. a steel frame; 23. a U-shaped fixing piece; 24. a reinforcing rod; 3. grouting pipe; 31. a plugging cap.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be understood that the depicted embodiments are some, but not all, embodiments of the present invention. The specific embodiments described herein are to be considered in an illustrative rather than a restrictive sense. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1, the invention provides a manual hole digging pile structure, which comprises pile holes 1 which are dug from top to bottom in a segmented manner, wherein a retaining wall 2 is arranged on the inner wall of each pile hole 1 in a segmented manner from top to bottom, the retaining wall 2 is used for soil body support and water seepage prevention immediately after each pile hole 1 is dug, the retaining wall 2 comprises a cylindrical wall plate 21, the outer side of the wall plate 21 is connected with the inner wall of the pile hole 1 for preliminary support, the inner side of the wall plate 21 is connected with a circular steel frame 22, the steel frame 22 plays a role in reinforcing and supporting, and meanwhile, the steel frame 22 serves as a concrete pouring framework after the subsequent pile holes 1 are dug.
Compared with the prior art, the invention does not adopt a retaining wall structure formed by casting concrete after the pile hole 1 is excavated in a sectionalized way, directly adopts the wallboard 21 as an initial support and waterproof structure, the steel frame 22 is positioned on the inner side of the wallboard 21 to form an integral ring, which plays a role of reinforcing structure, meanwhile, the steel frame 22 is used as a framework main body of the pile hole 1 for casting concrete, and a reinforcement cage is not required to be arranged after the pile hole 1 is excavated, so that the pile hole 1 is molded at one time, and the problem of poor structural consistency caused by casting concrete in different time periods is avoided.
In some embodiments, as shown in fig. 2, the wall plate 21 is formed by enclosing a plurality of arc segments 211, and the steel frame 22 is split into a plurality of segments and connected to the inner sides of the arc segments 211.
In some embodiments, as shown in fig. 4, the pile hole structure further comprises a U-shaped fixing piece 23, the arc section 211 is provided with a mounting hole, the arc section 211 adjacent to the same horizontal plane and the arc section 211 adjacent to the upper section and the lower section are connected together through the U-shaped fixing piece 23, the arc section 211 is connected with the inner wall of the pile hole 1, and in addition, the exposed part of the U-shaped fixing piece 23 can be bound and connected with the steel frame 22 or welded and connected.
In some embodiments, as shown in fig. 2, the wall plate 21 is equally divided into four arc segments 211, and a reinforcing rod 24 is connected between the steel frames 22 on any two arc segments 211. The wallboard 21 is not suitable to be divided into more sections, four circular arc sections 211 can be used, the operation construction is convenient, the risk that the soil body around the pile hole 1 possibly collapses exists, the reinforcing rods 24 are arranged between any two steel frames 22, the inward deformation of the retaining wall 2 is prevented, gaps can be formed between the steel frames 22 during design, the reinforcing rods 24 can be conveniently inserted in the gaps and directly abutted to the wallboard 21, then the reinforcing rods 24 can be connected with the steel frames 22 in a binding or welding mode, in addition, the reinforcing rods 24 are not arranged near the center of the pile hole 1 during arrangement, so that the subsequent construction operation space can be influenced, and enough construction areas are reserved for facilitating tool transportation and personnel passing.
In some embodiments, as shown in fig. 5, the grouting device further comprises a grouting pipe 3, and grouting holes for allowing the grouting pipe 3 to pass through are uniformly formed on the circular arc section 211. The installation of circular arc section 211 only plays preliminary support and waterproof effect, and grouting pipe 3 passes the grouting hole slant downwards and drives into the periphery soil body of stake hole 1 afterwards, begins the space that the grouting filled the periphery soil body, has increased the structural stability of periphery soil body and has prevented collapsing, and further shutoff water route avoids infiltration simultaneously, and a part of grouting pipe 3 can be designed into the frustum form, and after the slip casting finishes, continues to drive into grouting pipe 3 and makes this part shutoff grouting hole completely.
In some embodiments, as shown in fig. 1 and 5, the plugging cap 31 prevents cement slurry from overflowing after grouting is completed; after the cement paste injected is solidified, the grouting pipe 3 is solidified and fixed, the steel frame 22 is hung and fixed by utilizing the exposed part of the grouting pipe 3, then the nut 32 is screwed down to be connected with the port of the grouting pipe 3, the end face of the nut 32 tightly abuts against the steel frame 22 so as to further fix the steel frame 22, the steel bar of the steel frame 22 is tightly clamped by the included angle formed by the grouting pipe 3 and the nut 32, the steel frame 22 can be fixed, the operation is simple and convenient, and then the multi-section steel frame 22 is welded into a whole.
A construction method of a manual hole digging pile structure comprises the following steps:
A. Cleaning a site at the orifice of a pile hole 1 to be constructed, measuring and positioning the orifice of the pile hole 1, arranging a concrete retainer at the orifice of the pile hole 1, excavating soil at the orifice of the pile hole 1 to be constructed, and excavating downwards layer by layer in a segmented manner;
B. After the first section of pile hole 1 is excavated, spraying concrete on the inner wall of the pile hole 1, temporarily preventing water seepage, then installing the circular arc sections 211, condensing the concrete to ensure that the circular arc sections 211 are fixedly connected with the inner wall of the pile hole 1 in advance, enabling the U-shaped fixing piece 23 to penetrate through the installation holes to ensure that the two adjacent circular arc sections 211 are connected, simultaneously connecting the circular arc sections 211 with the inner wall of the pile hole 1, finally finishing the fixing of the wall plate 21, spraying concrete on the joint of the two adjacent circular arc sections 211, and installing the two adjacent circular arc sections 211 in a clamping manner, wherein the joint can be in a bent line shape or a curve shape, and then spraying concrete or sealing water seepage prevention materials on the joint can be additionally arranged to ensure that water seepage cannot occur;
C. After the wallboard 21 is installed, the grouting pipe 3 is obliquely downwards driven into the grouting pipe 3 from the grouting hole on the circular arc section 211, the grouting pipe 3 is annularly distributed on the inner wall of the pile hole 1, the grouting pipe 3 is connected with a grouting pump through a grouting hose, grouting is started, the structural stability of a peripheral soil body is increased, collapse is prevented, meanwhile, a waterway is further blocked, the port is completely blocked by the blocking cap 31, as shown in fig. 5, the fixing steel frame 22 is hung by utilizing the exposed part of the grouting pipe 3, the end face of the fixing steel frame 22 is extruded and fastened when the nut 32 is screwed, and then the multi-section steel frame 22 is connected into a whole; the reinforcing rods 24 are arranged between any two steel frames 22, and enough construction areas are reserved in the enclosed space of the reinforcing rods 24 so as to facilitate transportation of tools and passing of personnel;
D. The next section of pile hole 1 is excavated, the steps B, C are repeated to install the wall plate 21, the steel frame 22, the U-shaped fixing piece 23 and the reinforcing rod 24, the upper section of the adjacent arc section 211 and the lower section of the adjacent arc section 211 are also connected through the U-shaped fixing piece 23, concrete is sprayed at the joint, a sealing gasket is additionally arranged, the upper section of the adjacent arc section 211 and the lower section of the adjacent arc section 211 are arranged in a staggered manner, as shown in fig. 3, namely, the joint between the upper section of the arc section 211 and the lower section of the arc section 211 is not overlapped, and the staggered arrangement increases the stability of the structural connection of the upper section and the lower section of the wall plate 21 to a certain extent;
E. And pouring the pile hole 1 until the pile hole 1 is completely excavated, continuously vibrating and exhausting air in the pouring process, and forming the manual hole digging pile once.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A construction method of a manual hole digging pile structure is characterized by comprising the following steps: the manual hole digging pile structure comprises a pile hole (1) which is excavated from top to bottom in a segmented mode, a retaining wall (2) is arranged on the inner wall of the pile hole (1) from top to bottom in a segmented mode, the retaining wall (2) comprises a cylindrical wall plate (21), the outer side of the wall plate (21) is connected with the inner wall of the pile hole (1), and an annular steel frame (22) is connected with the inner side of the wall plate (21); the wall plate (21) is formed by encircling a plurality of arc sections (211), and the steel frame (22) is split into a plurality of sections and connected with the inner sides of the arc sections (211);
The construction method comprises the following steps:
A. excavating soil at the orifice of a pile hole (1) to be constructed, and excavating downwards layer by layer in a sectional manner;
B. After the first section of pile hole (1) is excavated, hanging down the circular arc section (211) from the hole opening, temporarily fixing the circular arc section (211) and the inner wall of the pile hole (1), and when the next section of circular arc section (211) is hung down, enabling the U-shaped fixing piece (23) to penetrate through the mounting hole to enable the two adjacent circular arc sections (211) to be connected, simultaneously connecting the circular arc section (211) with the inner wall of the pile hole (1), and finally finishing the fixing of the wallboard (21);
C. Then the steel frames (22) are correspondingly connected with the arc sections (211), a reinforcing rod (24) is connected between the steel frames (22) on any two arc sections (211), and enough construction areas are reserved in the enclosed space of the reinforcing rod (24) so as to facilitate tool transportation and personnel passing;
D. The next section of pile hole (1) is excavated, the steps B, C are repeated, a wall plate (21), a steel frame (22), a U-shaped fixing piece (23) and a reinforcing rod (24) are installed, the upper section and the lower section of adjacent two circular arc sections (211) are also connected through the U-shaped fixing piece (23), and the upper section and the lower section of adjacent two circular arc sections (211) are arranged in a staggered mode;
E. And pouring the pile hole (1) until the pile hole (1) is completely excavated, continuously vibrating and discharging air in the pouring process, and forming the manual hole-digging pile at one time.
2. The construction method of the manual hole digging pile structure according to claim 1, characterized in that: the manual hole digging pile structure further comprises U-shaped fixing pieces (23), wherein the circular arc sections (211) are provided with mounting holes, and the U-shaped fixing pieces (23) penetrate through the mounting holes on the two adjacent circular arc sections (211) to be connected with the inner wall of the pile hole (1).
3. The construction method of the manual hole digging pile structure according to claim 1, characterized in that: the wall plate (21) of the manual hole digging pile structure is equally divided into four circular arc sections (211), and a reinforcing rod (24) is connected between steel frames (22) on any two circular arc sections (211).
4. The construction method of the manual hole digging pile structure according to claim 1, characterized in that: the manual hole digging pile structure further comprises a grouting pipe (3), and grouting holes for allowing the grouting pipe (3) to penetrate through are uniformly formed in the circular arc section (211).
5. The method for constructing a manual hole digging pile structure according to claim 4, wherein: the port of slip casting pipe (3) is connected with plugging cap (31) in a matching way, steelframe (22) with the exposed part of slip casting pipe (3) is connected, and two adjacent steelframes (22) are connected through welding.
6. The method for constructing a manual hole digging pile structure according to claim 5, wherein: the periphery of the port of the grouting pipe (3) is connected with a nut (32), and the nut (32) is in abutting connection with the steel frame (22).
7. The construction method of the manual hole digging pile structure according to claim 1, characterized in that: the step B also comprises the following contents: before installing the wallboard (21), spraying concrete on the inner wall of the pile hole (1), then installing the circular arc sections (211), condensing the concrete so that the circular arc sections (211) are fixedly connected with the inner wall of the pile hole (1) in advance, after installing the wallboard (21), spraying concrete on the joint of two adjacent circular arc sections (211), and spraying concrete on the joint of two adjacent circular arc sections (211) in the step D.
8. The method for constructing a manual hole digging pile structure according to claim 7, wherein: the step C also comprises the following contents: after the wallboard (21) is installed, the grouting pipe (3) is obliquely downwards driven from the grouting hole on the arc section (211), the grouting pipe (3) is annularly distributed on the inner wall of the pile hole (1), the grouting pipe (3) is connected with a grouting pump through a grouting hose, grouting is started, after grouting is completed, the port of the grouting pipe (3) is plugged by a plugging cap (31), then a steel frame (22) is hung on the exposed part of the grouting pipe (3), a fastening nut (32) is started, a steel bar of the steel frame (22) is tightly clamped by an included angle formed by the grouting pipe (3) and the nut (32), and then the multi-section steel frame (22) is connected into a whole.
9. The method for constructing a manual hole digging pile structure according to claim 8, wherein: the step A also comprises the following contents: and (3) cleaning the site at the orifice of the pile hole (1) to be constructed, measuring and positioning the orifice of the pile hole (1), and arranging a concrete guard ring at the orifice of the pile hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972460.3A CN110578326B (en) | 2019-10-14 | 2019-10-14 | Manual hole digging pile structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972460.3A CN110578326B (en) | 2019-10-14 | 2019-10-14 | Manual hole digging pile structure and construction method thereof |
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| CN110578326A CN110578326A (en) | 2019-12-17 |
| CN110578326B true CN110578326B (en) | 2024-05-28 |
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| CN201910972460.3A Active CN110578326B (en) | 2019-10-14 | 2019-10-14 | Manual hole digging pile structure and construction method thereof |
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| CN113653069A (en) * | 2021-09-09 | 2021-11-16 | 浙江省三建建设集团有限公司 | Pre-tensioning method prestress supporting structure of deep foundation pit and construction method thereof |
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|---|---|---|---|---|
| JP2002317594A (en) * | 2001-02-16 | 2002-10-31 | Mitani Sekisan Co Ltd | Pile hole excavating method, construction method for foundation pile, and soil adhering device to pile hole wall |
| CN107675704A (en) * | 2017-11-16 | 2018-02-09 | 贵州建工集团有限公司 | A kind of artificial digging pile assembled retaining wall and its construction technology |
| CN107989034A (en) * | 2017-11-24 | 2018-05-04 | 浙江宏联建设有限公司 | A kind of manually digging hole filling pile and its construction method |
| CN108385670A (en) * | 2018-02-09 | 2018-08-10 | 温州嘉成工程项目管理有限公司 | A kind of manually digging hole filling pile and its construction method |
| CN109183787A (en) * | 2018-09-06 | 2019-01-11 | 上海宝冶集团有限公司 | A kind of forming method of man-made digging pile mould-pipe |
| CN211285576U (en) * | 2019-10-14 | 2020-08-18 | 中铁十六局集团有限公司 | Manual hole digging pile structure |
-
2019
- 2019-10-14 CN CN201910972460.3A patent/CN110578326B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317594A (en) * | 2001-02-16 | 2002-10-31 | Mitani Sekisan Co Ltd | Pile hole excavating method, construction method for foundation pile, and soil adhering device to pile hole wall |
| CN107675704A (en) * | 2017-11-16 | 2018-02-09 | 贵州建工集团有限公司 | A kind of artificial digging pile assembled retaining wall and its construction technology |
| CN107989034A (en) * | 2017-11-24 | 2018-05-04 | 浙江宏联建设有限公司 | A kind of manually digging hole filling pile and its construction method |
| CN108385670A (en) * | 2018-02-09 | 2018-08-10 | 温州嘉成工程项目管理有限公司 | A kind of manually digging hole filling pile and its construction method |
| CN109183787A (en) * | 2018-09-06 | 2019-01-11 | 上海宝冶集团有限公司 | A kind of forming method of man-made digging pile mould-pipe |
| CN211285576U (en) * | 2019-10-14 | 2020-08-18 | 中铁十六局集团有限公司 | Manual hole digging pile structure |
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| CN110578326A (en) | 2019-12-17 |
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