Fabricated subway station entrance and exit waterproof structure

Abstract

The utility model relates to an assembly type subway station entrance and exit waterproof structure which comprises a plurality of assembly type station entrance and exit single bodies which are sequentially arranged from front to back, and each assembly type station entrance and exit single body comprises an assembly type bottom plate, two assembly type side walls and an assembly type top plate. The two assembly type side walls are in butt joint with the left side and the right side of the top of the assembly type bottom plate correspondingly, the assembly type top plate is in lap joint between the tops of the two assembly type side walls, water swelling strips are arranged in transverse connecting seams of the assembly type side walls and the assembly type bottom plate, and waterproof coiled materials are arranged on the peripheries of the assembly type station entrance and exit single bodies. A cushion layer is arranged at the bottom of the waterproof roll below the assembly type bottom plate, and a waterproof protection layer is arranged on the outer side of the waterproof roll outside the assembly type side wall and the assembly type top plate. According to the utility model, the waterproof effect at the joint of the entrance and the exit of the fabricated subway can be effectively improved, the construction efficiency is improved, and quick repair measures are provided for water leakage in later operation.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled construction of subway station entrances and exits, and in particular to an assembled waterproof structure of a subway station entrance and exit. Background Art

[0002] Prefabricated technology can reduce the amount of cast-in-place construction work and reduce material waste and environmental pollution to a certain extent. Research on prefabricated technology for rail transit is helpful to improve construction efficiency and protect urban ecology. However, due to the large cross-sectional size of subway station entrances and exits, prefabricated subway entrances and exits are divided into multiple components for connection, which makes them have not only longitudinal connection seams, but also transverse connection seams. The construction quality of the waterproof structure at the seams is a key process in the construction of prefabricated subway entrances and exits. Utility Model Content

[0003] The utility model aims to improve the waterproof performance of the joints of an assembled subway station and provides an assembled subway station entrance and exit waterproof structure.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A prefabricated subway station entrance and exit waterproof structure comprises a plurality of prefabricated station entrance and exit monomers arranged in sequence from front to back, each prefabricated station entrance and exit monomer comprises a prefabricated bottom plate, two prefabricated side walls and a prefabricated top plate, the two prefabricated side walls are respectively butted on the left and right sides of the top of the prefabricated bottom plate, the prefabricated top plate is overlapped between the tops of the two prefabricated side walls, a water-swelling waterstop strip is provided in the transverse connecting seam between the prefabricated side wall and the prefabricated bottom plate, waterproof membranes are provided on the periphery of the plurality of prefabricated station entrance and exit monomers, a cushion layer is provided at the bottom of the waterproof membrane under the prefabricated bottom plate, and a waterproof protective layer is provided on the outer side of the waterproof membrane outside the prefabricated side wall and the prefabricated top plate.

[0006] Grouting pipes are buried at both ends of the connecting seam of the prefabricated bottom plates of two adjacent prefabricated station entrance and exit units.

[0007] The upper and lower ends of the prefabricated side walls are penetrated with connection holes, and connecting steel bars are passed through the corresponding connection holes of the prefabricated side walls on one side of several prefabricated station entrance and exit monomer channels.

[0008] The beneficial effects of the utility model are as follows: the utility model can effectively improve the waterproof effect of the joints at the assembled subway entrances and exits, improve the construction efficiency, and provide a quick repair measure for water leakage in the later operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2It is a schematic diagram of the connection of the individual entrances and exits of the assembled station in the utility model;

[0011] In the figure: 1-prefabricated bottom plate; 2-prefabricated side wall; 3-prefabricated top plate; 4-water-swelling water stop strip; 5-waterproof membrane; 6-cushion; 7-waterproof protective layer; 8-grouting pipe; 9-connecting steel bars;

[0012] 101-supporting bottom plate; 102-supporting bottom side plate;

[0013] 201- extension support platform;

[0014] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0016] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] An assembled waterproof structure for subway station entrances and exits, such as Figure 1 to Figure 2As shown, it includes several assembled station entrance and exit monomers arranged in sequence from front to back, each assembled station entrance and exit monomer includes an assembled bottom plate 1, two assembled side walls 2 and an assembled top plate 3, the two assembled side walls 2 are respectively connected to the left and right sides of the top of the assembled bottom plate 1, the assembled top plate 3 is overlapped between the tops of the two assembled side walls 2, and a water-swellable waterstop strip 4 is provided in the transverse connecting seam between the assembled side walls 2 and the assembled bottom plate 1, and waterproof membranes 5 are provided on the periphery of several assembled station entrance and exit monomers, a cushion layer 6 is provided at the bottom of the waterproof membrane 5 under the assembled bottom plate 1, and a waterproof protective layer 7 is provided on the outer side of the waterproof membrane 5 outside the assembled side walls 2 and the assembled top plate 3.

[0020] Grouting pipes 8 are buried at both left and right ends of the connection seam of the assembled bottom plates 1 of two adjacent assembled station entrance and exit units.

[0021] The upper and lower ends of the assembled side wall 2 are penetrated with connection holes, and connection steel bars 9 are penetrated through the corresponding connection holes of the assembled side wall 2 on one side of several assembled station entrance and exit monomers.

[0022] The assembled base plate 1 is a U-shaped structure consisting of a supporting base plate 101 and two left and right supporting base side plates 102 , and a step platform is provided on the top of the supporting base side plates 102 .

[0023] A step connection seat matching the step platform is provided at the bottom of the assembled side wall 2, and a water-swellable water stop strip 4 is arranged in the connection seam between the step platform and the step connection seat.

[0024] An extended support platform 201 is provided at the upper end of the inner side wall of the assembled side wall 2 , and the bottom of the assembled top plate 3 is supported between the tops of the extended support platforms 201 of the two assembled side walls 2 .

[0025] The grouting pipe 8 is provided with a plugging cap at its mouth.

[0026] The water-expandable waterstop strip 4 is more convenient and practical than the steel plate waterstop strip, which is easy to rust and requires troublesome post-processing.

[0027] The utility model is mainly used for assembled subway entrances and exits, has no cast-in-place parts, and aims to achieve rapid construction.

[0028] The specific steps of the utility model during construction are:

[0029] S1. Measure and lay out, and construct the cushion layer 6 at the prefabricated subway entrance and exit;

[0030] S2. Use the empty laying method to construct the waterproof membrane 5 between the upper surface of the cushion layer 6 and the lower surface of the assembled bottom plate 1, and reserve no less than 50 cm on both sides for subsequent folding and overlapping with the waterproof membrane 5 outside the assembled side wall 2;

[0031] S3, hoisting the assembled bottom plate 1 and the assembled side wall 2 and connecting them, and setting the water-swelling water stop strip 4 in the connection seam between the assembled side wall 2 and the assembled bottom plate 1. The connection accuracy between the components should be ensured during the hoisting process to improve the waterproof performance of the water-swelling water stop strip 4;

[0032] S4, hoisting and connecting the assembled top plate 3;

[0033] S5, the waterproofing membrane 5 outside the assembled side wall 2 and the assembled top plate 3 is constructed, and a double layer of waterproofing membrane 5 is arranged at the connection seam between the adjacent assembled station entrance and exit monomers to form a ring-shaped closed waterproofing membrane 5;

[0034] S6, construction of waterproof protective layer 7 outside assembled side wall 2 and assembled top plate 3, using fine stone concrete or cement mortar as waterproof protective layer 7;

[0035] S7. Seal and protect the grouting pipe 8 at the joint to prevent foreign matter from entering and clogging the grouting pipe 8. When water leakage occurs during the later operation, use the grouting method to quickly seal the leaking part, and use sealing materials to caulk the internal joints of the assembled entrances and exits.

[0036] The utility model can effectively improve the waterproof effect of the joints of the assembled subway entrances and exits, improve the construction efficiency, and provide a quick repair measure for water leakage in the later operation.

[0037] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An assembled waterproof structure for subway station entrances and exits, characterized in that: The invention comprises a plurality of assembled station entrance and exit units arranged in sequence from front to back, each of which comprises an assembled bottom plate (1), two assembled side walls (2) and an assembled top plate (3), the two assembled side walls (2) are respectively connected to the left and right sides of the top of the assembled bottom plate (1), the assembled top plate (3) is overlapped between the tops of the two assembled side walls (2), a water-swellable water stop strip (4) is provided in the transverse connection seam between the assembled side walls (2) and the assembled bottom plate (1), a waterproof roll (5) is provided on the periphery of the plurality of assembled station entrance and exit units, a cushion layer (6) is provided at the bottom of the waterproof roll (5) under the assembled bottom plate (1), and a waterproof protective layer (7) is provided on the outer side of the waterproof roll (5) outside the assembled side walls (2) and the assembled top plate (3).

2. The assembled subway station entrance and exit waterproof structure according to claim 1, characterized in that: Grouting pipes (8) are buried at both left and right ends of the connection seam of the assembled bottom plates (1) of two adjacent assembled station entrance and exit units.

3. The assembled subway station entrance and exit waterproof structure according to claim 2, characterized in that: The upper and lower ends of the assembled side wall (2) are penetrated with connection holes, and connection steel bars (9) are penetrated in the corresponding connection holes of the assembled side wall (2) on one side of a plurality of assembled station entrance and exit monomers.

4. The assembled subway station entrance and exit waterproof structure according to claim 3, characterized in that: The assembled bottom plate (1) is a U-shaped structure consisting of a supporting bottom plate (101) and two left and right supporting bottom side plates (102), and a stepped platform is provided on the top of the supporting bottom side plates (102).

5. The assembled subway station entrance and exit waterproof structure according to claim 4, characterized in that: A step connection seat matched with the step platform is provided at the bottom of the assembled side wall (2), and a water-swellable water stop strip (4) is arranged in the connection seam between the step platform and the step connection seat.

6. The assembled subway station entrance and exit waterproof structure according to claim 5, characterized in that: An extended support platform (201) is provided at the upper end of the inner side wall of the assembled side wall (2), and the bottom of the assembled top plate (3) is supported between the tops of the extended support platforms (201) of the two assembled side walls (2).

7. The assembled subway station entrance and exit waterproof structure according to claim 6, characterized in that: The grouting pipe (8) is provided with a plugging cap at its pipe opening.

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