阅读说明：本技术 一种顶管建筑墙体结构及其施工方法 (Pipe-jacking building wall structure and construction method thereof ) 是由 邱太岗 师小娜 于 2020-06-19 设计创作，主要内容包括：本发明提供一种顶管建筑墙体结构及其施工方法,包括基坑层、置于所述基坑层一侧的预制层和结构层,在所述基坑层一侧设有若干间隔设置的顶管围护桩,所述预制层置于所述基坑层靠近所述顶管围护桩一侧且与所述基坑层间隔设置,所述预制层与所述基坑层并排设置,所述预制层下端面与所述结构层上端面连接设置；所述结构层垂直于所述基坑层且位于所述预制层正下方；在所述基坑层和所述预制层之间还设有填充层。本发明顶管建筑墙体结构,结构简单且易于施工,施工质量好,能实现预制层构件的循环利用、节约建筑材料,施工效果好,而且还能实现对环境的保护,同时可缩短工期,提高工作效率。(The invention provides a pipe-jacking building wall structure and a construction method thereof, wherein the pipe-jacking building wall structure comprises a foundation pit layer, a prefabricated layer and a structural layer, wherein the prefabricated layer and the structural layer are arranged on one side of the foundation pit layer; the structural layer is vertical to the foundation pit layer and is positioned under the prefabricated layer; and a filling layer is also arranged between the foundation pit layer and the prefabricated layer. The pipe-jacking building wall structure is simple in structure, easy to construct, good in construction quality, capable of realizing recycling of prefabricated layer components, saving building materials, good in construction effect, capable of realizing environmental protection, capable of shortening construction period and improving working efficiency.)

1. A pipe-jacking building wall structure is characterized by comprising a foundation pit layer, a prefabricated layer and a structural layer, wherein the prefabricated layer and the structural layer are arranged on one side of the foundation pit layer; the structural layer is vertical to the foundation pit layer and is positioned under the prefabricated layer; and a filling layer is also arranged between the foundation pit layer and the prefabricated layer.

2. A push bench building wall structure as claimed in claim 1, wherein the filler layer is no less than 50mm thick.

3. A pipe-jacking building wall structure as claimed in claim 1 or 2, wherein a frame body layer is provided on the side of the prefabricated layer away from the foundation pit layer, the frame body layer comprising a plurality of spliced steel plates.

4. The pipe-jacking building wall structure according to claim 3, wherein adjacent steel plates are fixed by bolt connection.

5. A push pipe building wall structure as claimed in claim 4, wherein said frame layer is provided with a plurality of connectors, said connectors being sequentially disposed through said frame layer and said prefabricated layer.

6. A push pipe building wall structure as claimed in claim 5, wherein each of said connectors includes a plurality of bolts, adjacent bolts are connected by connectors, and said bolts are provided with nuts engaging with said bolts protruding from said frame layer on a side thereof remote from said prefabricated layer.

7. The pipe-jacking building wall structure according to claim 6, wherein the bolt is arranged at one end of the prefabricated layer and is of a bent structure, and the bent structure is L-shaped.

8. The pipe-jacking building wall structure according to any one of claims 1-2 and 4-7, wherein the foundation pit layer is an earth structure layer.

9. A push pipe building wall structure as claimed in claim 8, wherein said prefabricated layer and said structural layer are both concrete structural layers; the filling layer is a fine aggregate concrete structure layer.

10. A construction method of a pipe-jacking building wall structure is characterized in that the pipe-jacking building wall structure according to any one of 1-9 is adopted, and the steps are as follows:

s1: arranging a plurality of the top pipe fender posts at intervals on the same side of the foundation pit layer;

s2: excavating a earthwork pit on the foundation pit layer, wherein the earthwork pit is close to one side of the top pipe fender pile and is arranged along the height direction of the top pipe fender pile from top to bottom to a set depth;

s3: arranging the structural layer at the lower end face of the set depth and vertical to the foundation pit layer;

s4: arranging the prefabricated layer on one side of the foundation pit layer close to the top pipe fender post, wherein the prefabricated layer is perpendicular to the upper end surface of the structural layer;

s5: arranging the frame layer outside the prefabricated layer, and connecting the frame layer and the prefabricated layer into a whole through the connecting piece;

s6: and pouring fine aggregate concrete between the foundation pit layer and the prefabricated layer to form the filling layer.

Technical Field

The invention belongs to the technical field of municipal pipeline engineering construction, and particularly relates to a pipe-jacking building wall structure and a construction method thereof.

Background

Along with municipal infrastructure promotes transformation development increase, municipal pipeline push pipe construction technology's application is also more and more extensive. At present, a jack back wall in a top pipe well foundation pit is mostly of a cast-in-place concrete structure, pipe jacking construction can be carried out only after concrete reaches design strength, and the structure is abandoned after the pipe jacking is finished.

Disclosure of Invention

The invention provides a pipe-jacking building wall structure, which solves the technical problems of serious material waste, long construction period and high production cost caused by a cast-in-place concrete structure in the prior art, can realize the recycling of prefabricated layer members, save building materials, have good construction effect, can also realize the environmental protection, can shorten the construction period and improve the working efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that:

a pipe-jacking building wall structure comprises a foundation pit layer, a prefabricated layer and a structural layer, wherein the prefabricated layer and the structural layer are arranged on one side of the foundation pit layer; the structural layer is vertical to the foundation pit layer and is positioned under the prefabricated layer; and a filling layer is also arranged between the foundation pit layer and the prefabricated layer.

Further, the thickness of the filling layer is not less than 50 mm.

Further, keep away from at the prefabricated layer foundation ditch layer one side is equipped with the support body layer, the support body layer includes the steel sheet that a plurality of concatenations set up.

Furthermore, the adjacent steel plates are connected and fixed through bolts.

Furthermore, a plurality of connecting pieces are arranged on the frame body layer, and the connecting pieces sequentially penetrate through the frame body layer and the prefabricated layer.

Furthermore, each connecting piece includes a plurality of bolts, and adjacent bolts are connected through the connector, the bolt evaginate in the frame body layer is kept away from prefabricated layer one side is equipped with rather than the complex nut.

Furthermore, one end of the bolt, which is arranged on the prefabricated layer, is of a bent structure, and the bent structure is of an L shape.

Further, the foundation pit layer is an earthwork structure layer.

Further, the prefabricated layer and the structural layer are both concrete structural layers; the filling layer is a fine aggregate concrete structure layer.

A construction method of a pipe-jacking building wall structure adopts the pipe-jacking building wall structure, and comprises the following steps:

s1: arranging a plurality of the top pipe fender posts at intervals on the same side of the foundation pit layer;

s2: excavating a earthwork pit on the foundation pit layer, wherein the earthwork pit is close to one side of the top pipe fender pile and is arranged along the height direction of the top pipe fender pile from top to bottom to a set depth;

s3: arranging the structural layer at the lower end face of the set depth and vertical to the foundation pit layer;

s4: arranging the prefabricated layer on one side of the foundation pit layer close to the top pipe fender post, wherein the prefabricated layer is perpendicular to the upper end surface of the structural layer;

s5: a frame layer is arranged outside the prefabricated layer, and the frame layer and the prefabricated layer are connected into a whole through the connecting piece;

s6: and pouring fine aggregate concrete between the foundation pit layer and the prefabricated layer to form the filling layer.

Compared with the prior art, the pipe-jacking building wall structure is simple in structure, easy to construct, good in construction quality, capable of realizing recycling of prefabricated layer components, saving building materials, good in construction effect, capable of realizing environmental protection, capable of shortening construction period and improving working efficiency.

Drawings

Fig. 1 is a schematic structural view of a prefabricated assembled background wall according to an embodiment of the present invention;

FIG. 2 is a top view of a prefabricated assembled wall according to one embodiment of the present invention;

fig. 3 is a side view of a prefabricated assembled background wall according to an embodiment of the present invention.

In the figure:

10. foundation pit layer 20, top pipe fender post 30, prefabricated layer

40. Structural layer 50, filling layer 60, and frame layer

70. Bolt 80 and connecting piece

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

The embodiment provides a pipe-jacking building wall structure, as shown in fig. 1-3, which includes a foundation pit layer 10, a prefabricated layer 30 and a structural layer 40, the prefabricated layer 30 and the structural layer 40 are disposed on one side of the foundation pit layer 10, a plurality of pipe-jacking fender posts 20 are disposed at intervals on one side of the foundation pit layer 10, the pipe-jacking fender posts 20 are vertically disposed on the inner side thereof for placing jacking pipes, the pipe-jacking fender posts 20 can be disposed at intervals according to actual conditions, the foundation pit layer 10 is an earthwork structural layer, and earthwork is filled between adjacent pipe-jacking fender posts 20. The prefabricated layer 30 is arranged on one side, close to the top pipe fender post 20, of the foundation pit layer 10 and is arranged at a distance from the foundation pit layer 10, the prefabricated layer 30 and the foundation pit layer 10 are arranged side by side, and the lower end face of the prefabricated layer 30 is connected with the upper end face of the structural layer 40; structural layer 40 is perpendicular to foundation pit layer 10 and is located directly below precast layer 30. A filling layer 50 is further arranged between the foundation pit layer 10 and the prefabricated layer 30, and the thickness of the filling layer 50 is not less than 50 mm.

Further, be equipped with shelf body layer 60 in the one side of prefabricated layer 30 keeping away from foundation ditch layer 10, shelf body layer 60 includes the steel sheet that a plurality of concatenations set up, connects fixedly by bolt 70 between the adjacent steel sheet. The steel plate structures can be the same or different, the bolts 70 are mainly arranged at the splicing seams between the adjacent steel plates, the number of the bolts 70 can be determined according to the actual situation, and the number is not particularly limited.

Further, a plurality of connecting members 80 are disposed on the shelf body layer 60, and the connecting members 80 sequentially penetrate through the shelf body layer 60 and the prefabricated layer 30. Connecting piece 80's setting is mainly set up in the outward flange department and the junction on support body layer 60, and every connecting piece 80 includes a plurality of bolts, connects through the connector between the adjacent bolt, and the bolt majority is pre-buried in prefabricated layer 30, is equipped with the bolt of part evagination in one side of prefabricated layer 30 of support body layer 60 principle, and the bolt is kept away from one side and the nut cooperation on prefabricated layer 30 at support body layer 60. Further, the one end that the bolt is pre-buried at prefabricated layer 30 is the bending structure, and preferably, the bending structure of bolt at prefabricated layer 30 one end is the L type, increases the intensity that prefabricated layer 30 and support body layer 60 are connected, improves the holistic steadiness of push pipe building wall structure.

In this embodiment, the foundation pit layer 10 is an earth structure layer; both the prefabricated layer 30 and the structural layer 40 are concrete structural layers; the filling layer 40 is a fine-grained concrete structure layer.

A construction method of a pipe-jacking building wall structure adopts the pipe-jacking building wall structure, and comprises the following steps:

s1: and arranging a plurality of jacking pipe fender piles 20 arranged at intervals on the same side of the foundation pit layer 10, namely constructing the foundation pit layer 10 in a working well around the jacking pipe fender piles 20.

S2: and excavating square pits layer by layer from top to bottom to a set depth on one side of the foundation pit layer 10 close to the top pipe fender pile 20 along the height direction of the top pipe fender pile 20.

S3: after the excavation is carried out to the set depth, a concrete structure is poured on the lower end face of the earthwork pit perpendicular to one side of the foundation pit layer 10 as soon as possible to form a structural layer 60.

S4: and then, cleaning soil on the surface of one side of the foundation pit layer 10 close to the top pipe fender post 20, arranging a prefabricated layer 30 on one side of the cleaned foundation pit layer 10, and arranging the prefabricated layer 30 to be vertical to the upper end surface of the structural layer 60. Checking the control line during installation; the prefabricated layer 30 is hoisted and installed in a blocking mode, the prefabricated layer 30 and the foundation pit layer 10 are arranged side by side, and the gap between the prefabricated layer 30 and the foundation pit layer 10 is not smaller than 50 mm; the position, perpendicularity and splice gap of the precast layer 30 are checked during installation.

S5: a shelf layer 60 is disposed outside the precast layer 30, and the shelf layer 60 and the precast layer 30 are connected to each other by a connection member 80.

S6: and pouring fine aggregate concrete between the foundation pit layer 10 and the prefabricated layer 30 to form a filling layer 50, wherein the fine aggregate concrete of the filling layer 50 reaches the preset strength and then can be jacked into the pipeline.

Compared with the prior art, the pipe-jacking building wall structure is simple in structure, easy to construct, good in construction quality, capable of realizing recycling of prefabricated layer components, saving building materials, good in construction effect, capable of realizing environmental protection, capable of shortening construction period and improving working efficiency.

The embodiments of the present invention have been described in detail, and the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.