CN112982426A - Construction method of underground assembly type station precast pile - Google Patents
Construction method of underground assembly type station precast pile Download PDFInfo
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- CN112982426A CN112982426A CN202110176876.1A CN202110176876A CN112982426A CN 112982426 A CN112982426 A CN 112982426A CN 202110176876 A CN202110176876 A CN 202110176876A CN 112982426 A CN112982426 A CN 112982426A
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- pile body
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- underground
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- 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
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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- 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
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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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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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
- 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
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
The utility model relates to a construction method of prefabricated pile in underground assembly type station, through prefabricating the pile foundation in advance, and bury the person in charge and the branch pipe of being responsible for the intercommunication in the pile body underground, make the person in charge upper end and pile body top intercommunication, the branch pipe communicates with pile body lateral wall, thereby reserve out the slip casting pipeline in the pile body again, and after the pore-forming of construction hole, hang the pile body through the loop wheel machine and put into the construction hole, carry out the mud jacking toward the slip casting pipeline who reserves afterwards, grout flows to the construction downthehole from the pile body lateral wall, until the liquid level of grout covers the pile body top, after the grout reaches certain intensity, can accomplish the operation, thereby the coefficient of friction of pile body and the intensity of pile body have been improved, also avoided appearing broken pile in the work progress simultaneously, hole, quality problems such as concrete over side is serious.
Description
Technical Field
The application relates to the technical field of construction of assembly type subway station projects, in particular to a construction method of an underground assembly type station precast pile.
Background
With the development of urban rail transit construction in China, underground railways are greatly built, so that the construction technology of subway engineering in China is continuously developed and improved, an open cut method is a preferred method for underground railway construction in various countries, the open cut method is usually adopted for construction in places allowed by ground traffic and environment, and the construction technology of assembly type subway station engineering is widely applied.
In the construction technology of the related fabricated subway station engineering, the construction modes of drilling construction hole cast-in-place piles such as upright piles, uplift piles and the like are all that is adopted to carry out dry and wet drilling construction on pile positions by adopting a rotary drilling rig or a percussion drill, and after hole forming, a steel reinforcement cage is hoisted and placed and a guide pipe is placed to carry out pouring.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: after the construction hole is drilled, due to the process connection problem, the steel reinforcement cage can not be hung and poured temporarily after the hole is formed, so that the problems of collapse of the construction hole wall and the like exist, and therefore, the improvement space is still provided.
Disclosure of Invention
In order to solve the problem of collapse of construction hole walls, the application provides a construction method of an underground assembly type station precast pile.
The construction method for the underground assembly type station precast pile adopts the following technical scheme:
a construction method of an underground assembly type station precast pile comprises the following steps:
s1: prefabricating a pile body: pre-burying a main pipe in the pile body, wherein the end part of the main pipe is communicated with the top of the pile body, and pre-burying a plurality of branch pipes in the pile body, wherein two ends of each branch pipe are respectively communicated with the main pipe and the side wall of the pile body;
s2: drilling a construction hole in a construction area;
s3: hoisting the pile body: the pile body is hoisted into the construction hole and kept in a vertical state;
s4: grouting operation: and (4) grouting cement slurry into the end part of the main pipe until the liquid level of the cement slurry covers the top of the pile body, stopping grouting, and finishing operation after the cement slurry in the construction hole is solidified.
By adopting the technical scheme, the pile foundation is prefabricated in advance, the main pipe and the branch pipe communicated with the main pipe are embedded in the pile body, the upper end of the main pipe is communicated with the top of the pile body, the branch pipe is communicated with the side wall of the pile body, a grouting pipeline is reserved in the pile body, the pile body is hung in the construction hole through a crane after the construction hole is formed, grouting is carried out on the reserved grouting pipeline, cement slurry flows into the construction hole from the side wall of the pile body until the liquid level of the cement slurry covers the top of the pile body, and after the cement slurry reaches certain strength, operation can be completed, so that the friction coefficient of the pile body and the strength of the pile body are improved, the quality problems of pile breakage, hole collapse, serious concrete overrun and the like in the construction process are avoided, and meanwhile, concrete, manpower resources, equipment resources and capital are saved, and certain help is provided for the pile forming quality.
Preferably, the lower end of the pile body is provided with a conical part, and the tip of the conical part is arranged away from the pile body.
By adopting the technical scheme, when the pile body is inserted into the construction hole, the pyramid part can be inserted into the bottom wall of the construction hole under the self gravity of the pile body, and the stability of the pile body in the grouting process is improved.
Preferably, the construction area is provided with a guide support, the guide support comprises a base and an outer frame fixed on the upper end face of the base, two parallel limiting frames are fixed in the outer frame, and the cone part of the pile body is clamped and slides between the two limiting frames; the middle parts of the two limiting frames are all sunken to form sunken parts, the openings of the sunken parts are opposite to each other and form a through hole for the pile body to vertically pass through, and the through hole is opposite to the construction hole.
By adopting the technical scheme, the guide support is built in the construction area, so that when the pile body is hoisted, the lower end of the pile body is horizontally placed on the guide support, and the conical part of the pile body is clamped on the two limiting frames, so that when the top of the pile body is hoisted slowly, the stability of the pile body is kept under the limiting action of the limiting frames, and the problem that the pile body is difficult to align a construction hole due to shaking in the hoisting process is solved; through sunken out depressed part in two restriction framves middle parts, form the opening and be favorable to keeping the straightness that hangs down of pile body in order to supply the pile body to insert the construction hole vertically.
Preferably, the limiting frame is arc-shaped, and an opening of the limiting frame is arranged upwards.
Through adopting above-mentioned technical scheme for when hoist and mount pile body, but the pile body self action of gravity down slide to logical mouth department along the cambered surface of restriction frame, be favorable to the pile body rapidly with the construction hole location, be favorable to improving the efficiency of hoist and mount pile body.
Preferably, the base and each limiting frame are respectively provided with a plurality of inclined supporting rods.
Through adopting above-mentioned technical scheme, the diagonal brace can improve the holding power for the restriction frame, is favorable to improving the steadiness of restriction frame, is favorable to reducing the probability that restriction frame pressurized is buckled.
Preferably, two the restriction frame all is connected with the connective bar that stretches into the construction downthehole vertically, a plurality of the connective bar forms the gliding guide rail of confession pile body.
Through adopting above-mentioned technical scheme for when the pile body separates with the restriction frame opening, the connective bar is responsible for the direction task of pile body, is favorable to the pile body to remain vertical state throughout, reduces the pile body and takes place probability such as collision with the construction hole when hanging and put, is favorable to improving the pile body because of the impaired problem of collision.
Preferably, the upper end of each connecting rod is connected with a vibration motor.
Through adopting above-mentioned technical scheme, at the slip casting in-process, through vibrating motor vibrations, can order about the connective bar and vibrate the grout to improve the closely knit degree of grout, be favorable to improving pile body intensity.
Preferably, the limiting frame is provided with a limiting ring, the upper end of the connecting rod is provided with a hook, and the limiting frame and the connecting rod are fixedly hooked through the hook and the limiting frame.
Through adopting above-mentioned technical scheme, pass through between restriction frame and the connective bar couple and restriction frame hookup are fixed, when reaching the purpose of stabilizing the connective bar at the restriction frame, also are favorable to the quick assembly disassembly of connective bar.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the pile body is prefabricated in advance, a grouting pipeline is reserved in the pile body, the pile body is hung in the construction hole through a crane after the construction hole is formed, grouting is carried out on the reserved grouting pipeline, cement slurry flows into the construction hole from the side wall of the pile body, and therefore the friction coefficient of the pile body and the strength of the pile body are improved, and the quality problems such as hole collapse and the like are reduced;
2. through the construction of the guide support, under the limiting action of the two limiting frames and the guiding action of the opening in the middle of the limiting frame, the problem of shaking when the pile body is lifted is solved, the pile body can be quickly installed in a construction hole, and the verticality can be kept.
Drawings
Fig. 1 is a schematic structural diagram of a pile body during hoisting in a construction method of an underground assembly type station precast pile according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a pile body installed in a construction hole in a construction method of an underground assembly type station precast pile according to an embodiment of the present application.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Description of reference numerals: 1. a pile body; 2. hoisting a machine; 3. a guide bracket; 11. a main pipe; 12. a branch pipe; 13. a pyramid part; 31. a base; 32. an outer frame; 33. a restraint frame; 34. a recessed portion; 35. a diagonal brace; 36. a confinement ring; 4. a connecting rod; 41. hooking; 5. constructing holes; 6. a port; 7. a vibration motor.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
Referring to fig. 1 and 2, an embodiment of the application discloses a construction method of an underground assembly type station precast pile, which includes the following steps:
s1: precast pile body 1 and guide bracket 3: a main pipe 11 is embedded in the pile body 1, the end part of the main pipe 11 is communicated with the top of the pile body 1, a plurality of branch pipes 12 are embedded in the pile body 1, the two ends of each branch pipe 12 are respectively communicated with the main pipe 11 and the side wall of the pile body 1, the plurality of branch pipes 12 are arranged in three layers from top to bottom, each layer of branch pipes 12 are circumferentially distributed on the periphery of the main pipe 11, and the branch pipes 12 are obliquely arranged towards the bottom of the pile body 1;
s2: drilling a construction hole 5 in a construction area;
s3: hoisting the pile body 1: installing and fixing a guide support 3 on a construction position, hoisting the pile body 1 into a construction hole 5 by using a crane 2, and keeping the pile body in a vertical state under the action of the guide support 3;
s4: grouting operation: the lifting hook of the crane 2 is separated from the pile body 1 and removed, a grouting device is used for connecting a grouting pipe, the grouting pipe extends into the main pipe 11, cement slurry is poured into the upper end of the main pipe 11, the cement slurry flows into the construction hole 5 from the side wall of the pile body 1 through the pipe until the liquid level of the cement slurry covers the top of the pile body 1, grouting is stopped, and operation can be completed after the cement slurry in the construction hole 5 is solidified.
Referring to fig. 1 and 2, the lower end of the pile body 1 is provided with a conical part 13, and the tip of the conical part 13 is arranged away from the pile body 1. The guide bracket 3 includes a base 31 and an outer frame 32 fixed to an upper end surface of the base 31. The base 31 is composed of two bottom plates, a gap is left between the two bottom plates, and the two bottom plates are positioned at two sides of the construction hole 5 after the two bottom plates are fixed at the construction position by using anchor rods.
Referring to fig. 2 and 3, two parallel restricting frames 33 are fixed between two wide frames of the outer frame 32, the restricting frames 33 are arc-shaped, and the openings of the restricting frames 33 are disposed upward. The middle parts of the two limiting frames 33 are sunken to form sunken parts 34, the two sunken parts 34 are arc-shaped, the openings of the two sunken parts 34 are opposite to each other, and a through hole 6 for the state vertical insertion is formed. And the through opening 6 is positioned right above the construction hole 5. When the pile body 1 is hoisted, firstly, the embedded part at the top of the pile body 1 is hooked with a lifting hook of a crane 2, the lower section of the pile body 1 is lifted to a guide support 3, a cone part 13 of the pile body 1 is clamped between two limiting frames 33, then the pile body 1 is slowly hoisted by the slow crane 2, the pile body 1 slides to a through opening 6 along the arc surface of the limiting frames 33 under the self gravity until the pile body 1 is completely hoisted, and the through opening 6 plays a role in limiting the pile body 1, so that the pile body 1 is kept in a vertical state in the downward putting process.
Referring to fig. 2 and 3, a plurality of inclined supporting rods 35 are fixed on the upper end surface of the base 31, and one ends of the inclined supporting rods 35, which are far away from the base 31, are respectively fixed with the lower end surface of each limiting frame 33, which is beneficial to improving the stability of the limiting frames 33.
Referring to fig. 2 and 3, the two limiting frames 33 are connected with two connecting rods 4 extending into the construction hole 5 vertically, the four connecting rods 4 are attached to the side wall of the construction hole 5, and the four connecting rods 4 form a guide rail for the pile body 1 to slide, so that the pile body 1 can be placed into the construction hole 5 vertically. Two limiting rings 36 are fixed on the lower end faces of the two limiting frames 33, a hook 41 is fixed on the upper end of each connecting rod 4, and the limiting frames 33 and the connecting rods 4 are fixedly hooked with the limiting rings 36 through the hooks 41. When the hook 41 is hooked with the limiting ring 36, the connecting rod 4 is in a vertical state, and the connecting rod 4 and the limiting frame 33 have the characteristic of being convenient to disassemble and assemble
Referring to fig. 2 and 3, a wall-mounted vibration motor 7 is mounted and connected to the upper end of each connecting rod 4. In the grouting process, the vibration motor 7 can force the connecting rod 4 to vibrate, so that the connecting rod 4 can be inserted into one end of cement paste to vibrate the cement paste, and the compactness of the cement paste can be improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A construction method of an underground assembly type station precast pile is characterized by comprising the following steps: the method comprises the following steps:
s1: prefabricating a pile body: a main pipe (11) is embedded in the pile body (1), the end part of the main pipe (11) is communicated with the top of the pile body (1), a plurality of branch pipes (12) are embedded in the pile body (1), and two ends of each branch pipe (12) are respectively communicated with the main pipe (11) and the side wall of the pile body (1);
s2: drilling a construction hole in a construction area;
s3: hoisting the pile body: the pile body (1) is hoisted into the construction hole (5) and kept in a vertical state;
s4: grouting operation: and (3) grouting cement slurry into the end part of the main pipe (11) until the liquid level of the cement slurry covers the top of the pile body (1), stopping grouting, and finishing operation after the cement slurry in the construction hole (5) is solidified.
2. The construction method of the underground fabricated station precast pile according to claim 1, characterized in that: the lower end of the pile body (1) is provided with a cone part (13), and the tip of the cone part (13) deviates from the pile body (1).
3. The construction method of the underground fabricated station precast pile according to claim 2, characterized in that: the construction method comprises the following steps that a guide support (3) is arranged in a construction area, the guide support (3) comprises a base (31) and an outer frame (32) fixed to the upper end face of the base (31), two limiting frames (33) which are parallel to each other are fixed in the outer frame (32), and the cone part (13) of the pile body (1) is clamped and slides between the two limiting frames (33); two restriction frame (33) middle parts are all sunken to have depressed part (34), two depressed part (34) opening is just right each other and forms opening (6) that a confession pile body (1) passed jointly, opening (6) are just right with construction hole (5).
4. The construction method of the underground fabricated station precast pile according to claim 3, characterized in that: the limiting frame (33) is arc-shaped, and an opening of the limiting frame (33) faces upwards.
5. The construction method of the underground fabricated station precast pile according to claim 3, characterized in that: the base (31) and each limiting frame (33) are respectively provided with a plurality of inclined supporting rods (35).
6. The construction method of the underground fabricated station precast pile according to claim 3, characterized in that: two limit frame (33) all are connected with and stretch into connective bar (4) in construction hole (5) vertically, and a plurality of connective bar (4) form and supply pile body (1) gliding guide rail.
7. The construction method of the underground fabricated station precast pile according to claim 6, characterized in that: the upper end of each connecting rod (4) is connected with a vibration motor (7).
8. The construction method of the underground fabricated station precast pile according to claim 6, characterized in that: the limiting frame (33) is provided with a limiting ring (36), the upper end of the connecting rod (4) is provided with a hook (41), and the limiting frame (33) and the connecting rod (4) are fixedly hooked with the limiting ring (36) through the hook (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176876.1A CN112982426B (en) | 2021-02-07 | 2021-02-07 | Construction method of underground assembly type station precast pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110176876.1A CN112982426B (en) | 2021-02-07 | 2021-02-07 | Construction method of underground assembly type station precast pile |
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| CN112982426A true CN112982426A (en) | 2021-06-18 |
| CN112982426B CN112982426B (en) | 2022-09-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI835533B (en) | 2023-01-19 | 2024-03-11 | 林培元 | The root-type column structure of the basement structure and its assembly method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201581394U (en) * | 2009-11-03 | 2010-09-15 | 曹金鑫 | Large pile toe grout-injection precast pile |
| JP2011052408A (en) * | 2009-08-31 | 2011-03-17 | Sumitomo Forestry Co Ltd | Guide device for tapered pile |
| US20110135400A1 (en) * | 2009-06-10 | 2011-06-09 | Keystone Engineering Inc. | Offshore support structure and associated method of installing |
| CN103541361A (en) * | 2013-10-31 | 2014-01-29 | 湖南新天和工程设备有限公司 | Flexible ejection pulling type hydraulic power pile sinking machine |
| CN206887957U (en) * | 2017-04-10 | 2018-01-16 | 浙江省现代建筑设计研究院有限公司 | A kind of construction of prefabricated piles auxiliary stand |
| KR101950906B1 (en) * | 2018-12-04 | 2019-02-22 | 한국건설기술연구원 | Cofferdam Construction Method using Connection of Steel Pipe Members |
| CN109440762A (en) * | 2018-11-14 | 2019-03-08 | 浙江景昌建设有限公司 | A kind of construction method of drainage pumping plant bored concrete pile |
| CN110438994A (en) * | 2019-07-16 | 2019-11-12 | 中交一公局第二工程有限公司 | Steel pile casting leading truck |
| CN209816856U (en) * | 2019-01-26 | 2019-12-20 | 浙江省现代建筑设计研究院有限公司 | Auxiliary stand is used in precast pile construction |
| CN211646406U (en) * | 2019-12-24 | 2020-10-09 | 中铁隧道集团三处有限公司 | Steel pipe column inserts accurate positioning structure |
| CN112302007A (en) * | 2019-01-29 | 2021-02-02 | 唐思源 | Pile bearing frame for pile foundation and construction method |
-
2021
- 2021-02-07 CN CN202110176876.1A patent/CN112982426B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110135400A1 (en) * | 2009-06-10 | 2011-06-09 | Keystone Engineering Inc. | Offshore support structure and associated method of installing |
| JP2011052408A (en) * | 2009-08-31 | 2011-03-17 | Sumitomo Forestry Co Ltd | Guide device for tapered pile |
| CN201581394U (en) * | 2009-11-03 | 2010-09-15 | 曹金鑫 | Large pile toe grout-injection precast pile |
| CN103541361A (en) * | 2013-10-31 | 2014-01-29 | 湖南新天和工程设备有限公司 | Flexible ejection pulling type hydraulic power pile sinking machine |
| CN206887957U (en) * | 2017-04-10 | 2018-01-16 | 浙江省现代建筑设计研究院有限公司 | A kind of construction of prefabricated piles auxiliary stand |
| CN109440762A (en) * | 2018-11-14 | 2019-03-08 | 浙江景昌建设有限公司 | A kind of construction method of drainage pumping plant bored concrete pile |
| KR101950906B1 (en) * | 2018-12-04 | 2019-02-22 | 한국건설기술연구원 | Cofferdam Construction Method using Connection of Steel Pipe Members |
| CN209816856U (en) * | 2019-01-26 | 2019-12-20 | 浙江省现代建筑设计研究院有限公司 | Auxiliary stand is used in precast pile construction |
| CN112302007A (en) * | 2019-01-29 | 2021-02-02 | 唐思源 | Pile bearing frame for pile foundation and construction method |
| CN110438994A (en) * | 2019-07-16 | 2019-11-12 | 中交一公局第二工程有限公司 | Steel pile casting leading truck |
| CN211646406U (en) * | 2019-12-24 | 2020-10-09 | 中铁隧道集团三处有限公司 | Steel pipe column inserts accurate positioning structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI835533B (en) | 2023-01-19 | 2024-03-11 | 林培元 | The root-type column structure of the basement structure and its assembly method |
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| CN112982426B (en) | 2022-09-16 |
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