Pre-buried drainage grouting channel for improving overall waterproof performance of underground structure

Abstract

The utility model discloses a pre-buried drainage grouting channel for improving the overall waterproof performance of an underground structure, the drainage grouting channel comprises a cylindrical pipe, a spiral steel wire and a grouting pipe, a plurality of grout outlets are evenly and alternately distributed in the grouting pipe, the drainage grouting channel is arranged between an underground waterproof material and a base plane, and the spiral steel wire is arranged in the grouting pipe. The top and the bottom of the drainage grouting channel are connected with the two metal pipes respectively, a grouting valve is arranged at the tail end of the top metal pipe, and a drainage valve is arranged at the tail end of the bottom metal pipe. Every four drainage and grouting channels are connected in a three-communication mode, and one drainage and grouting channel is arranged horizontally and three drainage and grouting channels are arranged longitudinally. And underground water between the waterproof material and the base surface is converged and discharged through the drainage valve in the drainage grouting channel, so that damage of water pressure of the underground water to weak parts of side wall concrete and the waterproof material is effectively reduced, and seepage of the underground water from the weak parts of side wall pouring is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the construction engineering construction technical field, more specifically, the utility model relates to a kind of pre-embedded drainage grouting channel for improving the overall waterproof performance of underground structure. BACKGROUND

[0002] With the rapid development of urbanization nationwide, the development and utilization of underground space are more and more extensive, such as subway, underground passage, underground parking lot, etc. Due to the long-term complex hydrological environment of underground structure, the erosion and penetration of underground water, various degrees of leakage problems occur in the side wall of underground structure, which seriously affects the normal use and durability of underground structure. In dealing with the problem of seepage water, the traditional grouting plugging method is usually implemented after the occurrence of seepage water and the structure has been damaged to a certain extent. Due to the lack of scientific and reasonable grouting channel, the diffusion range and uniformity of slurry during grouting process are difficult to effectively control, which leads to a big discount in plugging effect and cannot fundamentally solve the hidden danger of seepage water.

[0003] Therefore, the seepage of underground water can be discharged in time during the use of the structure, the adverse effects of underground water level and water pressure on the structure are reduced, and when the waterproof layer is damaged or the structure appears seepage water, grouting repair can be carried out quickly and accurately through the pre-embedded grouting channel, the overall performance of underground structure is improved, and the problem of seepage water of underground structure is fundamentally solved. It has extremely important significance for prolonging the service life of underground structure, ensuring the safe and stable operation of underground structure and improving the use quality of underground space. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a pre-embedded drainage grouting channel for improving the overall waterproof performance of underground structure, which can solve various seepage of underground side wall.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that a pre-embedded drainage grouting channel for improving the overall waterproof performance of underground structure, the drainage grouting channel includes cylindrical pipe, spiral steel wire and grouting pipe, wherein the grouting pipe is uniformly and alternately distributed with multiple grout outlets, the drainage grouting channel is arranged between underground waterproof material and base surface, the top and bottom of the drainage grouting channel are respectively connected with two metal pipes, the end of the top metal pipe is provided with a grouting valve, and the end of the bottom metal pipe is provided with a drainage valve; every four drainage grouting channels are connected in a three-way connection mode, and are arranged in one horizontal and three vertical directions.

[0006] The utility model discloses a pre-embedded drainage grouting channel for improving the overall waterproof performance of underground structure, the grout outlet is provided with a cover plate, and the cover plate and the grout outlet are connected through a spring hinge.

[0007] The utility model discloses a kind of pre-embedded drainage grouting passages of improving the overall waterproof performance of underground structure, the cylindrical pipe is made of plastic resin.

[0008] The utility model discloses a kind of pre-embedded drainage grouting passages of improving the overall waterproof performance of underground structure, metal pipe two ends are connected grouting pipe, drainage valve and grouting valve respectively, metal pipe two sides are equipped with thread and metal pipe middle is equipped with wing ring.

[0009] The utility model discloses a kind of pre-embedded drainage grouting passages of improving the overall waterproof performance of underground structure, the grout outlet is rotated distribution according to 70-90cm equidistance length, 75-105 ° equiangular angle on grouting pipe surface.

[0010] Compared with prior art, the utility model has the following beneficial effects:

[0011] 1, groundwater is gathered between waterproof material and base surface and is discharged through drainage valve in drainage grouting passage, effectively reduce the damage of water pressure of groundwater to weak place of side wall concrete and waterproof material, effectively reduce groundwater seepage from weak place of side wall pouring;

[0012] 2, cement slurry is pressed through grouting valve through grout outlet, can effectively extrude and exclude groundwater in gap, fill the gap between waterproof material and base surface, improve the overall performance of station and surrounding stratum, prevent the damage of station structure caused by excessive deformation;

[0013] 3, cement slurry is pressed through grouting valve, which can effectively treat existing side wall leakage point.

[0014] The utility model will be combined with drawing and embodiment, more detailed description is given. DRAWINGS

[0015] The contents expressed by each drawing of the present specification and the marks in the drawing are briefly described as follows:

[0016] Figure 1 It is the schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of drainage grouting passage of the utility model;

[0018] Figure 3 It is the grout outlet schematic diagram of the utility model;

[0019] Figure 4 It is the pre-embedded schematic diagram of drainage grouting passage of the utility model;

[0020] Figure 5 It is the structure schematic diagram of metal pipe of the utility model;

[0021] Marked in the figure: 1, drainage grouting pipeline; 2, drainage valve; 3, grouting valve; 4, cylindrical pipe; 5, grouting pipe; 6, grouting outlet; 7, spiral steel wire; 8, spring hinge; 9, cover plate; 10, base surface; 11, waterproof material; 12, metal pipe; 13, wing ring; 14, thread. DETAILED DESCRIPTION

[0022] The shape, structure, mutual position and connecting relationship between the parts, the function and working principle of each part, the manufacturing process and the operation and use method of each component involved in the specific implementation of the utility model will be further described below with reference to the drawings by describing the embodiments, so as to help the skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model.

[0023] As Figures 1 to 5 shown in a kind of pre-embedded drainage grouting channel for improving the overall waterproof performance of underground structure, drainage grouting channel 1 includes cylindrical pipe 4, spiral steel wire 7 and grouting pipe 5, wherein grouting pipe 5 evenly and alternately distributes multiple grouting outlets 6, drainage grouting channel 1 is arranged between underground waterproof material 11 and base surface 10, the top and bottom of drainage grouting channel 1 are connected with two metal pipes 12 respectively, the end of top metal pipe 12 is provided with grouting valve 3, and the end of bottom metal pipe 12 is provided with drainage valve 2;Every four drainage grouting channels 1 adopt three-way connection mode, and are arranged horizontally and longitudinally.

[0024] Through the above setting: grouting valve 3 is provided with 3 in each section of side wall, is located at the top of side wall two sides construction joint and the middle of side wall Reasonably arranged, for later expecting station overall process to be completed by selectively carrying out pressure injection cement slurry through grouting valve 3, can effectively extrude and exclude groundwater in gap, fill the gap between waterproof material 11 and base surface 10, improve the overall performance between station and surrounding stratum;Grouting outlet 6 one end is connected with grouting pipe 5, and the other end is provided with cover plate 9 equipped with spring hinge 8, external groundwater cannot seep into grouting pipe 5 through cover plate 9, when grouting through grouting valve 3, slurry can flush off cover plate 9 and fill and leak stop between base surface 10 and waterproof material 11. Spiral steel wire 7 is inserted in cylindrical pipe 4 to ensure that the wall of cylindrical pipe 4 with messy wire structure is not easy to be deformed by external force, which leads to failure of cylindrical pipe 4 and impermeability.

[0025] As Figure 3 shown, grouting outlet 6 is provided with cover plate 9, and cover plate 9 and grouting outlet 6 are connected by spring hinge 8.

[0026] As Figure 2 shown, cylindrical pipe 4 is made of plastic resin.

[0027] As Figure 5The metal pipe 12 shown is connected to the grouting pipe 5, the drain valve 2 and the grouting valve 3 at both ends respectively. The metal pipe 12 has threads 14 on both sides and a wing ring 13 in the middle.

[0028] With the above configuration, the wing ring 13 serves a waterproof function.

[0029] like Figure 2 The grout outlets 6 are distributed on the surface of the grouting pipe 5 at equal intervals of 70-90cm and at angles of 75-105°.

[0030] Working principle and method

[0031] The assembled drainage grouting pipe 1 is arranged vertically and horizontally. The vertical pipes on both sides are placed near the vertical construction joints on both sides of the side wall, and the horizontal pipes are placed near the horizontal construction joints at the bottom of the side wall. A vertical pipe is installed in the middle of the side wall. The pipes are fixed with clamps and cement nails. One end of the drainage grouting pipe 1 is connected to the grouting valve 3 (at the top of the vertical drainage grouting pipe 1, connected to the internal grouting pipe 5), and the other end is connected to the drain valve 2 (at the top of the vertical drainage grouting pipe 1, connected only to the cylindrical pipe 4). The overall working principle is that groundwater between the base surface and the waterproof membrane is drained through the wall of the cylindrical pipe 4 and discharged through the drain valve 2. Then, the grouting valve 3, through the grouting pipe 5 and the grout outlet 6, uses grout to fill the gaps between the base surface and the membrane and seal the leakage points. This prevents early damage to the station structure due to excessive ground deformation and effectively treats and eliminates existing side wall leakage points, thereby improving the overall waterproof performance of the station.

[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A pre-embedded drainage grouting channel for improving the overall waterproofing performance of underground structures, characterized in that, The drainage grouting channel includes a cylindrical pipe, a spiral steel wire, and a grouting pipe. The grouting pipe has multiple grout outlets evenly and alternately distributed. The drainage grouting channel is set between the underground waterproof material and the base surface. The top and bottom of the drainage grouting channel are connected to two metal pipes respectively. The top metal pipe is equipped with a grouting valve at its end, and the bottom metal pipe is equipped with a drainage valve at its end. Every four drainage grouting channels are connected in a three-way connection method, arranged in a horizontal and three-longitudinal configuration.

2. The pre-embedded drainage grouting channel for improving the overall waterproofing performance of underground structures according to claim 1, characterized in that, The slurry outlet is equipped with a cover plate, and the cover plate is connected to the slurry outlet by a spring hinge.

3. The pre-embedded drainage grouting channel for improving the overall waterproofing performance of underground structures according to claim 1, characterized in that, The cylindrical tube is made of a malleable resin.

4. The pre-embedded drainage grouting channel for improving the overall waterproofing performance of underground structures according to claim 1, characterized in that, The metal pipe is connected to a grouting pipe, a drain valve, and a grouting valve at both ends, respectively. The metal pipe has threads on both sides and a wing ring in the middle.

5. The pre-embedded drainage grouting channel for improving the overall waterproofing performance of underground structures according to claim 1, characterized in that, The grout outlets are distributed on the surface of the grouting pipe at equal intervals of 70-90cm and at angles of 75-105°.

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