CN211312769U

CN211312769U - Connecting member of plastic pipe and concrete prefabricated inspection well

Info

Publication number: CN211312769U
Application number: CN201921522574.XU
Authority: CN
Inventors: 张志勇; 肖翰; 姚巍; 余超; 龚超; 黄效磊
Original assignee: Sinohydro Bureau 14 Co Ltd
Current assignee: Sinohydro Bureau 14 Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-08-21
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a connecting element of a plastic pipe and a concrete prefabricated inspection well, which comprises a brick wall layer, a micro-expansion cement mortar layer I, an arch-shaped brick layer, a micro-expansion cement mortar layer II and a concrete layer, wherein the outer side of the joint of the plastic pipe and the concrete prefabricated inspection well is that the outer wall of the concrete prefabricated inspection well is tightly provided with the brick wall layer, the micro-expansion cement mortar layer I is arranged between the brick wall layer and the arch-shaped brick layer, and the micro-expansion cement mortar layer II is arranged between the arch-shaped brick layer and the plastic pipe; the concrete layer is arranged between the wall of the concrete prefabricated inspection well and the plastic pipe, and the micro-expansion cement mortar layer III is filled between the concrete layer and the plastic pipe, between the wall of the concrete prefabricated inspection well and the concrete layer, and between the plastic pipe and the wall of the concrete prefabricated inspection well; the connecting component solves the problems of poor sealing, water leakage and the like which are easy to occur when the plastic drain pipe is connected with the precast concrete inspection well, is simple and easy to construct, and can be flexibly implemented according to the actual situation on site.

Description

Connecting member of plastic pipe and concrete prefabricated inspection well

Technical Field

The utility model relates to the municipal works field relates to a connecting elements of plastic tubing and precast concrete inspection shaft, and this connecting elements has solved during water environment renovation rain, the construction of sewage pipe network, and plastic tubing and precast concrete inspection shaft are difficult to sealing connection's problem.

Background

In municipal pipe network construction, the contents of laying of a pipe network, connection and installation with an inspection well and the like are generally involved, and under the trend of advocating the adoption of new technology and new materials, more and more rain and sewage pipe networks adopt light plastic pipelines with ribs such as HDPE and the like in design; simultaneously, in order to guarantee inspection shaft construction quality, improve the efficiency of construction, municipal works rain sewage pipe network preferentially adopts the precast concrete inspection shaft.

Because the angle of the rain and sewage pipe network connected into the inspection well is different, in order to ensure the universality of the prefabricated shaft, the reserved hole of the concrete inspection well is usually larger, and simultaneously, because the pipe rib of the HDPE plastic pipe is higher, when the conventional mortar caulking sealing and caulking method is used for construction, the mortar caulking thickness is larger, the mortar is easy to shrink and generate cracks, so that the sealing between the inspection well and the plastic pipe is not tight, the construction quality is difficult to ensure, and potential safety hazards such as underground cavities and the like are easy to generate after rain and sewage in the inspection well leak.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a connecting elements of plastic tubing and precast concrete inspection shaft, its simple structure, the construction is quick, low cost, and sealed water-proof effects is good.

The connecting component of the plastic pipe and the concrete prefabricated inspection well comprises a brick wall layer, a micro-expansion cement mortar layer I, an arch brick layer, a micro-expansion cement mortar layer II, a concrete layer and a micro-expansion cement mortar layer III, wherein the brick wall layer is tightly arranged on the outer side of the joint of the plastic pipe and the concrete prefabricated inspection well, namely the outer wall of the concrete prefabricated inspection well, the micro-expansion cement mortar layer I is arranged between the brick wall layer and the arch brick layer, and the micro-expansion cement mortar layer II is arranged between the arch brick layer and the plastic pipe; the concrete layer is arranged between the wall of the concrete prefabricated inspection well and the plastic pipe, and the micro-expansion cement mortar layer III is filled between the concrete layer and the plastic pipe, between the wall of the concrete prefabricated inspection well and the concrete layer, and between the plastic pipe and the wall of the concrete prefabricated inspection well.

The concrete layer is a C30 concrete layer.

The micro-expansion cement mortar of the micro-expansion cement mortar layer I, the micro-expansion cement mortar layer II and the micro-expansion cement mortar layer III is 1:2 micro-expansion cement mortar.

Before the plastic pipe is inserted into the precast concrete inspection well, a brick wall layer and an arched brick wall layer are built on the outer side of the joint of the plastic pipe and the precast concrete inspection well in a manner of being tightly attached to the outer wall of the precast concrete inspection well, gaps between the brick wall layer and the arched brick wall layer are tightly filled with 1:2 micro-expansion cement mortar, the buried plastic pipe is wrapped in the brick wall, then a mold is erected on the inner wall of the inspection well, concrete is poured in the gap between the inner wall of the inspection well and the plastic pipe for filling, roughening treatment needs to be carried out on a new concrete joint surface and an old concrete joint surface in advance, and after the mold is removed, the 1:2 micro-expansion cement mortar is used for tightly filling the gaps between the arched brick wall layer and the periphery of the plastic pipe, between the concrete layer and the plastic pipe, and between the wall of the precast concrete inspection well and the; ensuring the sealing effect.

Compared with the prior art, the utility model has the advantages that:

the connecting component solves the problems of poor sealing, water leakage and the like which are easy to occur when the plastic drain pipe is connected with the precast concrete inspection well, and is simple and easy to construct, construction materials are common materials, the construction method is a conventional construction process, the technology is mature, the universality is good, and the flexible implementation can be realized according to the actual situation on site.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention

In the figure: 1-brick wall layer, 2-micro expansion cement mortar layer I, 3-arch brick layer, 4-micro expansion cement mortar layer II, 5-concrete layer, 6-concrete well base, 7-plastic pipe, 8-concrete prefabricated inspection well wall and 9-micro expansion cement mortar layer III.

Detailed Description

The invention is explained in more detail below with reference to the drawings and exemplary embodiments, but the scope of protection of the invention is not limited to the embodiments.

Example 1: as shown in fig. 1-2, the connecting member of the plastic pipe and the concrete prefabricated inspection well comprises a brick wall layer 1, a micro-expansion cement mortar layer i 2, an arch-shaped brick layer 3, a micro-expansion cement mortar layer ii 4 and a C30 concrete layer 5, wherein the brick wall layer 1 is tightly arranged on the outer wall of the concrete prefabricated inspection well at the outer side of the joint of the plastic pipe and the concrete prefabricated inspection well, the micro-expansion cement mortar layer i 2 is arranged between the brick wall layer 1 and the arch-shaped brick layer 3, and the micro-expansion cement mortar layer ii 4 is arranged between the arch-shaped brick layer 3 and the plastic pipe 7; concrete layer 5 sets up between precast concrete inspection shaft wall of a well and the plastic tubing, and little inflation cement mortar layer III 9 is filled between concrete layer 5 and plastic tubing 7, between precast concrete inspection shaft wall of a well 8 and C30 concrete layer 5, between plastic tubing and precast concrete inspection shaft wall of a well 8.

After the precast concrete inspection well is installed in place, before a plastic pipe is connected into the precast concrete inspection well, a brick wall layer 1 and an arch-shaped brick layer 3 are built on the outer side of the joint of the plastic pipe 7 and the precast concrete inspection well in a manner of being tightly attached to the outer wall of the precast concrete inspection well, gaps between the brick wall layer and the arch-shaped brick wall layer are densely filled with 1:2 micro-expansion cement mortar to form a micro-expansion cement mortar layer I2, the buried plastic pipe is wrapped in the brick wall, then a mold is erected on the inner wall of the inspection well, C30 concrete is poured in the gap between the wall 8 of the concrete precast inspection well and the plastic pipe 7 to form a concrete layer, a new concrete joint surface and an old concrete joint surface need to be roughened in advance, and after the mold is removed, the 1:2 micro-expansion cement mortar is used for forming a micro-expansion cement mortar layer II 4 on the periphery of; filling and compacting gaps between a concrete layer 5 and a plastic pipe 7, between a wall 8 of the concrete prefabricated inspection well and the concrete layer 5 and between the plastic pipe 7 and the wall 8 of the concrete prefabricated inspection well by using 1:2 micro-expansion cement mortar to form a micro-expansion cement mortar layer III 9; ensuring the sealing effect.

Claims

1. A connecting component of a plastic pipe and a concrete prefabricated inspection well is characterized in that: the concrete prefabricated inspection well comprises a brick wall layer (1), a micro-expansion cement mortar layer I (2), an arched brick layer (3), a micro-expansion cement mortar layer II (4), a concrete layer (5) and a micro-expansion cement mortar layer III (9), wherein the brick wall layer (1) is tightly arranged on the outer side of the joint of a plastic pipe and the concrete prefabricated inspection well, the micro-expansion cement mortar layer I (2) is arranged between the brick wall layer (1) and the arched brick layer (3), and the micro-expansion cement mortar layer II (4) is arranged between the arched brick layer (3) and the plastic pipe; the concrete layer (5) is arranged between the wall of the concrete prefabricated inspection well and the plastic pipe, and the micro-expansion cement mortar layer III (9) is filled between the concrete layer (5) and the plastic pipe, between the wall of the concrete prefabricated inspection well and the concrete layer, and between the plastic pipe and the wall of the concrete prefabricated inspection well.

2. A coupling member of a plastic pipe and a concrete prefabricated manhole according to claim 1, wherein: the concrete layer (5) is a C30 concrete layer.

3. A coupling member of a plastic pipe and a concrete prefabricated manhole according to claim 1, wherein: the micro-expansion cement mortar of the micro-expansion cement mortar layer I, the micro-expansion cement mortar layer II and the micro-expansion cement mortar layer III is 1:2 micro-expansion cement mortar.