CN214245736U - Rear precast pile-wall superposed structure - Google Patents

Rear precast pile-wall superposed structure Download PDF

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Publication number
CN214245736U
CN214245736U CN202022265381.XU CN202022265381U CN214245736U CN 214245736 U CN214245736 U CN 214245736U CN 202022265381 U CN202022265381 U CN 202022265381U CN 214245736 U CN214245736 U CN 214245736U
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pile
wall
side wall
hole
prefabricated
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吕延豪
王金龙
游龙飞
符瑞安
周健
张海涛
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The utility model belongs to the technical field of underground structure engineering, in particular to a post precast pile-wall superposed structure, which comprises a fender post and a precast structure side wall, wherein a preformed hole which transversely penetrates is reserved on the precast structure side wall, a pile side drilling hole is arranged on the inner side of the fender post, and anchoring glue is injected into a construction joint between the fender post and the precast structure side wall, the preformed hole and the pile side drilling hole; and a screw rod is further arranged in the preformed hole in a penetrating mode, one end of the screw rod is inserted into the pile side drilling hole, and the other end of the screw rod is fixed through a nut. The utility model provides a post precast pile-wall superposed structure, which can reduce the procedures of formwork and fender pile scabbling and the like connected with the cast-in-situ side wall, and save the mould and the construction period; and the prefabricated structure side wall can be produced on a factory assembly line, the construction is convenient, the quality is easy to control, the on-site dry connection of the pile-wall superposed structure is realized, and the construction requirement of the post-prefabricated pile-wall superposed structure is met.

Description

Rear precast pile-wall superposed structure
Technical Field
The utility model belongs to the technical field of underground structure engineering, concretely relates to back precast pile-wall coincide structure.
Background
With the vigorous development of the rail transit construction industry in China and the needs of people in China for life, the number of cities approved by the nation to construct rail transit projects is increasing, and more urban rail transit projects are constructed. However, the construction of rail traffic engineering in cities is subject to many restrictions and influences of ground traffic, house building, municipal pipelines and the like, so that many prefabricated lined foundation pit engineering appears. Most of the prefabricated lining foundation pit projects need to be constructed by fender posts, but the fender posts are abandoned after being used as foundation pit support structures on the side walls of the main body, so that a large amount of resource waste and environmental damage are caused. Therefore, how to make full use of the foundation pit fender post is taken as a part of the side wall of the main body structure to bear the load of the soil body together is a difficult point.
Aiming at the reutilization of the foundation pit fender post, the pile-wall superposition technology is an advanced technology which can combine the foundation pit fender post and a foundation pit main body structure together to bear force together. However, in the existing pile-wall superposition project, the pile-wall is connected while the main structure side wall is formed by chiseling the guard piles, overlapping the reinforcing steel bars and then casting concrete in situ, the main structure side wall adopts the cast-in-situ concrete form, so that the gap between the main structure and the guard piles can be eliminated, but the processes of in-situ formwork support and concrete casting are needed, the cast-in-situ concrete structure needs to wait for the age, and the construction period is long.
Disclosure of Invention
In order to overcome the defects existing in the prior art, the utility model aims to provide an open cut tunnel is with back precast pile-wall coincide structure can reduce processes such as formwork and fender pile scabbling that cast-in-place side wall is connected, saves mould and time limit for a project.
In order to achieve the purpose, the technical scheme of the utility model is a post precast pile-wall superposed structure, which comprises a fender post and a precast structure side wall, wherein a preformed hole which transversely penetrates through is preformed on the precast structure side wall, a pile side drilling hole is arranged on the inner side of the fender post, and anchoring glue is injected into a construction joint between the fender post and the precast structure side wall, the preformed hole and the pile side drilling hole; and a screw rod is further arranged in the preformed hole in a penetrating mode, one end of the screw rod is inserted into the pile side drilling hole, and the other end of the screw rod is fixed through a nut.
Further, one side of the prefabricated structure side wall, which deviates from the fender post, is provided with a notch, the preformed hole is communicated with the notch, and the nut is located in the notch.
Furthermore, the prefabricated structure side wall is corresponding to each fender post's position all is equipped with a plurality ofly preformed hole and a plurality of the notch, just the preformed hole with the notch one-to-one.
Furthermore, a plurality of the preformed holes and a plurality of the notches are arranged on the side wall of the prefabricated structure at intervals along the vertical direction.
Further, a gasket is further sleeved on the screw rod and located between the nut and the side wall of the prefabricated structure.
Further, the pile side drilling hole is a blind hole.
Further, one end of the screw rod is inserted into the bottom of the pile-side bore.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) compared with a cast-in-place pile-wall superposed structure, the rear precast pile-wall superposed structure provided by the utility model can reduce the procedures of formwork connection of the cast-in-place side wall, pile chiseling of the fender pile and the like, and save the mould and the construction period;
(2) the prefabricated structure side wall of the utility model can be produced on a factory assembly line, is convenient to construct, has easy quality control, realizes the on-site dry connection of the pile-wall superposed structure, and meets the construction requirement of the post-prefabricated pile-wall superposed structure;
(3) the utility model discloses an pour into anchor glue into construction joint, stake side-drilling and the preformed hole between fender pile and the prefabricated construction side wall to insert the screw rod in stake side-drilling and preformed hole after, through the nut fastening, improve the joint strength between fender pile and the prefabricated construction side wall, make fender pile and prefabricated construction side wall become the congruent structure of common atress.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a rear precast pile-wall superposed structure provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a screw of a rear precast pile-wall composite structure provided in an embodiment of the present invention;
fig. 3 is a schematic view of a prefabricated structure side wall of a rear precast pile-wall superposed structure according to an embodiment of the present invention;
in the figure: 1. a fender pile; 2. prefabricating a structure side wall; 3. a notch; 4. reserving a hole; 5. a nut; 6. a gasket; 7. anchoring glue; 8. a screw; 9. drilling a pile side; 10. and (5) constructing the joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-2, this embodiment provides a post-precast pile-wall superposed structure, which includes a fender pile 1 and a precast structure side wall 2, a preformed hole 4 that transversely penetrates is preformed on the precast structure side wall 2, a pile side drilling hole 9 is arranged on the inner side of the fender pile 1, and an anchoring adhesive 7 is injected into a construction joint 10 between the fender pile 1 and the precast structure side wall 2, the preformed hole 4, and the pile side drilling hole 9; still wear to be equipped with screw rod 8 in the preformed hole 4, the one end of screw rod 8 insert to in the stake side drilling 9, the other end passes through nut 5 fixedly. In the embodiment, the anchor glue 7 is injected into the construction joint 10 between the fender post 1 and the side wall 2 of the prefabricated structure, the pile side drilling hole 9 and the preformed hole 4 through the preformed hole 4, so that sealing is realized and the anchoring force is increased, and the pile side drilling hole 9 and the preformed hole 4 are fastened through the nut 5 after the screw 8 is inserted, so that the connection strength between the fender post 1 and the side wall 2 of the prefabricated structure is improved, and the fender post 1 and the side wall 2 of the prefabricated structure are of a superposed structure stressed together; meanwhile, the prefabricated structure side wall 2 can be produced on a factory assembly line, construction is convenient, quality is easy to control, procedures such as formwork connection of the cast-in-place side wall and pile chiseling can be reduced, and a mold and a construction period are saved.
Further, prefabricated construction side wall 2 deviates from one side of fender post 1 is equipped with notch 3, preformed hole 4 with notch 3 intercommunication, nut 5 is located in notch 3. This embodiment is through 3 installation gasket 6 of notch and nut 5, avoids causing the influence to the prefabricated lining side wall is inboard.
Furthermore, the prefabricated structure side wall 2 is provided with a plurality of preformed holes 4 and a plurality of notches 3 corresponding to the positions of the fender post 1, wherein the preformed holes 4 correspond to the notches 3 one by one. Furthermore, as shown in fig. 3, a plurality of the prepared holes 4 and a plurality of the notches 3 corresponding to each fender post 1 are arranged on the prefabricated structure side wall 2 at intervals along the vertical direction. In this embodiment, through the preformed notch 3 and the preformed hole 4 reserved on the prefabricated structure side wall 2, implement the later stage connection measure, according to the size of the prefabricated structure side wall 2, every prefabricated structure side wall 2 can correspond a plurality of fender posts 1, and correspond every on the prefabricated structure side wall 2 the position of fender post 1 all reserves one list of notch 3 and preformed hole 4, and the inboard position that corresponds the preformed hole 4 of prefabricated structure side wall 2 of every fender post 1 all is equipped with stake side drilling 9, all pours into anchor glue 7 into in every stake side drilling 9, every preformed hole 4 and the construction seam 10 between fender post 1 and the prefabricated structure side wall 2, and all installs screw rod 8 in preformed hole 4 and the stake side drilling 9 that corresponds, further increase the power of being connected between stake-wall, make stake-wall become common atress's congruent structure.
Further, a gasket 6 is further sleeved on the screw rod 8, and the gasket 6 is located between the nut 5 and the prefabricated structure side wall 2. In this embodiment, the gasket 6 and the nut 5 are both installed on the screw rod 8 and located in the notch 3, and the gasket 6 is located between the gasket 6 and the bottom of the notch 3, so that the anchoring force of the screw rod 8 is increased, and the pile-wall structure becomes a common stressed laminated structure.
As an embodiment, the pile side bore 9 is a blind hole; one end of the screw 8 is inserted into the bottom of the pile side bore 9.
The embodiment also provides a construction method of the rear precast pile-wall superposed structure, which comprises the following steps:
1) when the prefabricated structure side wall 2 is manufactured, the preformed hole 4 and the notch 3 are preformed on the prefabricated structure side wall 2, and after the prefabricated structure side wall 2 is prefabricated in a factory, the prefabricated structure side wall is transported to a construction site and assembled;
2) after the installation is finished, drilling holes in the fender post 1 through the preformed holes 4, wherein the depth of the drilled holes is determined according to actual engineering; then, injecting an anchoring adhesive 7 into a construction joint 10 between the fender post 1 and the side wall 2 of the prefabricated structure, a pile side drilling hole 9 and the preformed hole 4 through the preformed hole 4 to serve as a waterproof measure between the pile and the wall and play a role in strengthening, connecting and anchoring;
3) after glue injection is finished, inserting a screw 8, enabling the screw 8 to penetrate through the preformed hole 4 until the bottom of a pile side drilling hole 9, and sequentially installing a gasket 6 and a nut 5 on the screw 8 through the notch 3;
4) and the fastening nut 5 increases the connection strength between the fender post 1 and the prefabricated structure side wall 2, so that the fender post 1 and the prefabricated structure side wall 2 form a common stressed superposed structure.
The anchoring adhesive in this embodiment may be a resin anchoring agent or a cement anchoring agent.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a back precast pile-wall coincide structure which characterized in that: the side wall of the prefabricated structure is reserved with a reserved hole which transversely penetrates through the side wall of the prefabricated structure, a pile side drilling hole is formed in the inner side of the fender pile, and anchoring glue is injected into a construction joint between the fender pile and the side wall of the prefabricated structure, the reserved hole and the pile side drilling hole; and a screw rod is further arranged in the preformed hole in a penetrating mode, one end of the screw rod is inserted into the pile side drilling hole, and the other end of the screw rod is fixed through a nut.
2. A rear precast pile-wall superposed structure as recited in claim 1, wherein: the side wall of the prefabricated structure deviates from one side of the fender post is provided with a notch, the preformed hole is communicated with the notch, and the nut is located in the notch.
3. A rear precast pile-wall superposed structure as recited in claim 2, wherein: correspond every on the prefabricated construction side wall the position of fender pile all is equipped with a plurality of preformed hole and a plurality of the notch, just the preformed hole with the notch one-to-one.
4. A rear precast pile-wall superposed structure as recited in claim 3, wherein: a plurality of preformed hole and a plurality of notch all set up along vertical interval in the precast structure lateral wall.
5. A rear precast pile-wall superposed structure as recited in any one of claims 1 to 4, wherein: and a gasket is further sleeved on the screw rod and is positioned between the nut and the side wall of the prefabricated structure.
6. A rear precast pile-wall superposed structure as recited in claim 1, wherein: the side drilling hole of the pile is a blind hole.
7. A rear precast pile-wall superposed structure as recited in claim 6, wherein: one end of the screw rod is inserted into the bottom of the pile side drilling hole.
CN202022265381.XU 2020-10-13 2020-10-13 Rear precast pile-wall superposed structure Active CN214245736U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022265381.XU CN214245736U (en) 2020-10-13 2020-10-13 Rear precast pile-wall superposed structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022265381.XU CN214245736U (en) 2020-10-13 2020-10-13 Rear precast pile-wall superposed structure

Publications (1)

Publication Number Publication Date
CN214245736U true CN214245736U (en) 2021-09-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112323809A (en) * 2020-10-13 2021-02-05 中铁第四勘察设计院集团有限公司 Rear precast pile-wall superposed structure and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112323809A (en) * 2020-10-13 2021-02-05 中铁第四勘察设计院集团有限公司 Rear precast pile-wall superposed structure and construction method thereof

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