CN217204303U - Underground waterproof structure of wall back embedded grouting pipe - Google Patents

Abstract

The application discloses underground waterproof construction of pre-buried slip casting pipe of wall back, it is including setting up waterproof layer and a plurality of slip casting pipe between envelope and wall structure, and a plurality of slip casting pipes distribute along wall structure's length direction, and wall structure's top and slip casting machine intercommunication are stretched out to the one end of slip casting pipe, have seted up a plurality of injected holes on the slip casting pipe. This application is through pre-buried slip casting pipe and waterproof layer in the space between wall structure and envelope, then fills up the space with cement thick liquid through the slip casting pipe to carry out the shutoff to the infiltration water source, show the possibility that reduces wall structure infiltration.

Description

Underground waterproof structure of wall back embedded grouting pipe

Technical Field

The application relates to the technical field of subway station waterproofing, in particular to an underground waterproof structure of a wall back embedded grouting pipe.

Background

The main structure of the subway station is usually constructed as an enclosure structure before construction, but the enclosure structure can only provide construction conditions for waterless operation for the structure construction, when earth is backfilled and the main structure construction is completed, underground water rises, a gap between the enclosure structure and a wall structure is easy to store water, if the wall structure has defects, water accumulated between the enclosure structure and the wall structure leaks from the seam, and the water has certain water head pressure, so that the wall structure is easy to be damaged. The traditional waterproof method is to treat the water leakage part of the structure, but the index is not permanent, and the risk of secondary permeation generated after the station is operated is higher. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that wall structure leaked, this application provides a wall back of body pre-buried slip casting pipe's secret waterproof construction.

The application provides a pair of underground waterproof construction of pre-buried slip casting pipe of wall back adopts following technical scheme:

the utility model provides an underground waterproof construction of pre-buried slip casting pipe of wall back, is including setting up waterproof layer and a plurality of slip casting pipe between envelope and wall structure, and a plurality of slip casting pipes distribute along wall structure's length direction, wall structure's top and with the slip casting machine intercommunication are stretched out to the one end of slip casting pipe, a plurality of injected holes have been seted up on the slip casting pipe.

By adopting the technical scheme, before the construction of the wall structure, the grouting pipes are embedded in the enclosure structure, and then the waterproof layer is arranged. After the wall structure construction is finished, the grouting pipe is communicated with the grouting machine, then grouting is performed in a gap between the wall structure and the building envelope structure, and the two waterproof structures are formed by matching the waterproof layers, so that a water leakage source is blocked, and the possibility of water leakage of the wall structure can be effectively reduced.

Preferably, a plurality of the slip casting hole divide into the multiunit, and multiunit slip casting hole distributes along the circumference of slip casting pipe, and every group slip casting hole all distributes along the length direction of slip casting pipe interval side by side, and adjacent two sets of slip casting holes are along the length direction of slip casting pipe setting in a staggered manner.

Through adopting above-mentioned technical scheme, when guaranteeing slip casting pipe grout output, guarantee that the slip casting pipe possesses sufficient structural strength for slip casting pipe non-deformable.

Preferably, the grouting pipe comprises a vertical pipe and a horizontal pipe, the vertical pipe and the horizontal pipe are vertically arranged and are communicated with each other, and two ends of the horizontal pipe are arranged in a sealed mode.

By adopting the technical scheme, the grouting range is favorably enlarged, so that the grouting efficiency is improved.

Preferably, the vertical pipes and the transverse pipes form a T-shaped structure.

Through adopting above-mentioned technical scheme, make the slip casting pipe more stable arrange in the space between wall structure and the envelope in one hand, on the other hand makes the slip casting in-process, and up slip casting is followed down to the cement thick liquid for slip casting is more closely knit, thereby is favorable to improving the leakproofness.

Preferably, the two ends of the transverse pipe are fixedly connected with cushion blocks, and the cushion blocks are located on the circumferential surface of the transverse pipe deviating from the vertical pipe.

Through adopting above-mentioned technical scheme, the cushion pads up the slip casting pipe for the slip casting hole that lies in on violently managing can not be stopped up, thereby makes the cement thick liquid can fill up the bottom in the space between wall structure and the envelope, is favorable to improving the leakproofness.

Preferably, the system further comprises a buckle, the buckle is buckled on a section of the vertical pipe extending out of the wall structure, and the buckle is fixed on the building enclosure through a fastener.

Through adopting above-mentioned technical scheme for the slip casting pipe keeps stable at the slip casting in-process, thereby ensures the slip casting quality.

Preferably, the waterproof layer is arranged on one side, close to the envelope structure, of the wall structure, and the grouting pipes are arranged between the envelope structure and the waterproof layer.

Through adopting above-mentioned technical scheme, as first waterproof construction after the cement thick liquid solidifies, the waterproof layer is as the waterproof construction of second way, is favorable to improving the leakproofness.

Preferably, the wall structure is provided with a plurality of drain pipes, the drain pipes are communicated with gaps between the wall structure and the enclosure structure, each drain pipe is located between two adjacent vertical pipes, and the drain pipes are provided with stop valves.

By adopting the technical scheme, after the wall structure is constructed, underground water is filled in the gap between the wall structure and the enclosure structure, so that the water body can be discharged by arranging the drain pipe and opening the stop valve in the grouting process, and the diffusion of cement slurry is facilitated. Meanwhile, the grouting device is also used as an air outlet and an observation hole so as to judge the grouting condition.

Drawings

Fig. 1 is a schematic side sectional view of a wall structure and a building envelope in the present application.

Fig. 2 is a schematic view of the overall construction of a grouting pipe in the present application.

Description of reference numerals:

1. an enclosure structure; 2. a wall structure; 3. a waterproof layer; 4. a grouting pipe; 41. a vertical tube; 42. a transverse tube; 43. a connecting pipe; 5. a first grouting hole; 6. a second grouting hole; 7. cushion blocks; 8. buckling; 9. a drain pipe; 10. and a stop valve.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses underground waterproof construction of pre-buried slip casting pipe of wall back. Referring to fig. 1, the waterproof layer 3 and the grouting pipes 4 are arranged in a gap between the building envelope 1 and the wall structure 2. Waterproof layer 3 adopts pitch waterproofing membrane, and pitch waterproofing membrane sets up in wall structure 2 one side near protective structure. And the grouting pipes 4 are arranged between the building envelope 1 and the asphalt waterproof coiled material. The plurality of grouting pipes 4 are distributed along the length direction of the wall structure 2, one ends of the grouting pipes 4 extend out of the top end of the wall structure 2 and are communicated with a grouting machine (not shown in the drawing), and the grouting pipes 4 are provided with a plurality of grouting holes.

Referring to fig. 1 and 2, the grouting pipe 4 includes a vertical pipe 41 and a horizontal pipe 42, the vertical pipe 41 and the horizontal pipe 42 are vertically disposed and are communicated with each other, one end of the vertical pipe 41 far away from the horizontal pipe 42 extends out of the top end of the wall structure 2 and is vertically and fixedly connected with a connecting pipe 43, the connecting pipe 43 extends in a direction away from the enclosure structure 1, and the connecting pipe 43 is communicated with the grouting machine. The standpipe 41 and the transverse pipe 42 form a T-shaped structure, so that the grouting pipe 4 is more stably arranged between the wall structure 2 and the envelope structure 1 on one hand, and cement slurry injected into the grouting pipe 4 is filled upwards from the bottom on the other hand, so that the filling is more compact, and the sealing performance is favorably enhanced.

Referring to fig. 2, the plurality of injection holes include a plurality of first injection holes 5 formed on the vertical pipe 41 and a plurality of second injection holes 6 formed on the horizontal pipe 42. The plurality of first grouting holes 5 are divided into a plurality of groups, the plurality of groups of first grouting holes 5 are circumferentially distributed on the peripheral wall of the vertical pipe 41 by taking the axis of the vertical pipe 41 as the center, and the hole pitch of the same group of first grouting holes 5 is 20 cm. The section of the vertical pipe 41 extending out of the top end of the wall structure 2 is not provided with the first grouting hole 5 so as to avoid leakage of the grout. Two sets of adjacent first injected holes 5 are along the length direction looks wrong setting of standpipe 41, when guaranteeing the standpipe 41 volume of grout out, are favorable to guaranteeing the structural strength of standpipe 41 for standpipe 41 is difficult for warping under the oppression of cement thick liquid.

Similarly, the arrangement of the second plurality of injection holes 6 on the horizontal tube 42 is the same as the arrangement of the first plurality of injection holes 5 on the vertical tube 41, and will not be described herein.

The length of the cross tube 42 is 2-3m, in this case the length of the cross tube 42 is 3 m. By controlling the length of the horizontal pipe 42, it is possible to ensure that the cement grout injected into the horizontal pipe 42 has a sufficient flow rate, so that the second grout hole 6 is not blocked during grouting.

Both ends of the transverse pipe 42 are sealed, so that the grout injected into the transverse pipe 42 is ejected from the second grouting holes 6, and the grouting range is favorably expanded.

Referring to fig. 2, two ends of the horizontal tube 42 are fixedly connected with the cushion blocks 7, and the two cushion blocks 7 are located on the circumferential surface of the horizontal tube 42 away from the vertical tube 41. The cushion block 7 erects the grouting pipe 4, so that the second grouting hole 6 right facing the bottom of the gap cannot be blocked, thereby ensuring that the bottom of the gap is filled with cement slurry, and being beneficial to improving the sealing property.

The two adjacent horizontal pipes 42 are mutually abutted tightly, so that the grouting range of the grouting pipe 4 is ensured to cover the gap, the cement slurry in the gap is uniformly filled, and the slurry filling weak point cannot occur.

Referring to fig. 1, the envelope 1 is further provided with a buckle 8 for fixing the grouting pipe 4, the buckle 8 is integrally arranged in a U shape, and two ends of the buckle 8 are bent to form folding lugs. The buckle 8 is buckled on the segment of the vertical pipe 41 extending out of the wall structure 2, and the buckle 8 is fixed on the building envelope 1 through a fastener. In particular, the fasteners are conventional bolts and will not be described in detail here. The buckle 8 plays a fixed role to slip casting pipe 4 for slip casting pipe 4 remains stable at the slip casting in-process, thereby ensures the slip casting effect.

Referring to fig. 1, a plurality of drain pipes 9 are further arranged on the wall structure 2, one end of each drain pipe 9 is provided with a stop valve 10, and the other end of each drain pipe 9 penetrates through the wall structure 2 and is communicated with a gap between the wall structure 2 and the enclosure structure 1. A plurality of drain pipes 9 divide into two sets ofly, and every group drain pipe 9 all distributes on wall structure 2 along wall structure's 2 even interval of length direction, and two sets of drain pipes 9 distribute on wall structure 2 one on the other. Each drain pipe 9 is disposed between two adjacent vertical pipes 41. Through setting up drain pipe 9, can in time discharge at the water that the slip casting in-process will be saved in the space to be favorable to the cement thick liquid diffusion.

The implementation principle of the underground waterproof structure of the wall back embedded grouting pipe in the embodiment of the application is as follows:

before the wall structure 2 is constructed, the grouting pipes 4 are fixed on the building envelope 1 through the buckles 8 one by one, then the asphalt waterproof coiled material is laid, and then the wall structure 2 is constructed. And pre-burying a drain pipe 9 on the wall structure 2 in the construction process of the wall structure 2. After the construction of accomplishing wall structure 2, put through slip casting machine with slip casting pipe 4 and carry out the slip casting, the slip casting in-process is opened stop valve 10 on the drain pipe 9 and is carried out the drainage, simultaneously is done venthole and observation hole concurrently. After the lower drain pipe 9 overflows the thick liquid, close stop valve 10, continue slip casting, after the upper drain pipe 9 overflows the thick liquid, close stop valve 10, continue the slip casting, until satisfying the slip casting requirement. This application is through pre-buried slip casting pipe 4 in advance and lay pitch waterproofing membrane's mode, carries out the shutoff from the percolating water source to carry out preventing the percolating water in advance at the root, showing and having reduced wall structure 2 the possibility that leaks appears, and then be favorable to the safety of subway station.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, 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. The utility model provides an underground waterproof construction of pre-buried slip casting pipe of wall back which characterized in that: including setting up waterproof layer (3) and a plurality of slip casting pipe (4) between envelope (1) and wall structure (2), a plurality of slip casting pipe (4) distribute along the length direction of wall structure (2), the one end of slip casting pipe (4) stretches out the top of wall structure (2) and communicates with the slip casting machine, a plurality of injected holes have been seted up on slip casting pipe (4).

2. The underground waterproof structure of pre-buried slip casting pipe in wall back of claim 1, its characterized in that: a plurality of the grouting holes are divided into a plurality of groups, the plurality of groups of grouting holes are distributed along the circumferential direction of the grouting pipes (4), each group of grouting holes are distributed at intervals side by side along the length direction of the grouting pipes (4), and two adjacent groups of grouting holes are arranged in a staggered mode along the length direction of the grouting pipes (4).

3. The underground waterproof structure of the embedded slip casting pipe of the wall back of claim 1, characterized in that: the grouting pipe (4) comprises a vertical pipe (41) and a horizontal pipe (42), the vertical pipe (41) and the horizontal pipe (42) are vertically arranged and communicated with each other, and two ends of the horizontal pipe (42) are arranged in a sealed mode.

4. The underground waterproof structure of the embedded slip casting pipe of wall back of claim 3, characterized in that: the vertical pipe (41) and the transverse pipe (42) form a T-shaped structure.

5. The underground waterproof structure of pre-buried slip casting pipe in wall back of claim 4, its characterized in that: both ends of violently pipe (42) all fixedly connected with cushion (7), cushion (7) are located violently pipe (42) and deviate from on the global of standpipe (41).

6. The underground waterproof structure of the embedded slip casting pipe of wall back of claim 3, characterized in that: the building enclosure structure is characterized by further comprising a buckle (8), wherein the buckle (8) is buckled on a section of the vertical pipe (41) extending out of the wall body structure (2), and the buckle (8) is fixed on the enclosure structure (1) through a fastener.

7. The underground waterproof structure of the embedded slip casting pipe of the wall back of claim 1, characterized in that: the waterproof layer (3) is arranged on one side, close to the building envelope (1), of the wall structure (2), and the grouting pipes (4) are arranged between the building envelope (1) and the waterproof layer (3).

8. The underground waterproof structure of pre-buried slip casting pipe in wall back of claim 4, its characterized in that: be provided with a plurality of drain pipes (9) on wall structure (2), space intercommunication between drain pipe (9) and wall structure (2) and envelope (1), every drain pipe (9) all are located between two adjacent standpipe (41), be provided with stop valve (10) on drain pipe (9).

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