Underground tunnel deformation joint water leakage diversion structure

Abstract

The utility model provides an underground tunnel deformation joint water leakage diversion structure which comprises a deformation joint filling material and a middle-buried rubber waterstop and further comprises geotechnical cloth, a spring water seepage pipe, sealant and a stainless steel water receiving box, the geotechnical cloth wraps the spring water seepage pipe to form a structure that the geotechnical cloth wraps a spring framework water-permeable diversion pipe, and the spring framework water-permeable diversion pipe is arranged in the middle-buried rubber waterstop. The output ends of the spring water seepage pipes are connected with drainage side ditches on the two sides of a tunnel to form a first flow guide structure, the upper portion of the geotextile wrapped spring framework water seepage flow guide pipe structure is filled with deformation joint filling materials, the outer side of the geotextile wrapped spring framework water seepage flow guide pipe structure is sealed through sealant, and a stainless steel water receiving box is arranged at a deformation joint of the downstream face of the structure. The stainless steel water receiving box is fixed to the downstream face of the structure through stainless steel expansion bolts, the spring water seepage pipe seeps into the drainage box from the bottom of the structure, and a second flow guide structure is formed. When the underground tunnel deformation joint water leakage diversion structure is adopted, deformation joint water leakage can be treated without damaging a tunnel structure or chiseling off a small amount of the structure, and the integrity of the tunnel structure can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of treatment of water leakage at deformation joints in underground tunnels, in particular to a water leakage diversion structure at deformation joints in underground tunnels. Background Art

[0002] The expansion joint waterproofing structure of underground tunnels often adopts a combination of a centrally embedded waterstop and an externally attached waterstop, or a centrally embedded waterstop and an internally installed removable waterstop. After long-term use, expansion joints often cause problems such as leakage and mud bursting due to deformation or aging and damage of external waterproofing. When a removable waterstop is used, it needs to be pre-buried in the structure, and it is difficult and expensive to replace it later. Grouting will cause certain damage to the structure, and grouting is prone to slurry leakage, and the amount of grouting is difficult to control, resulting in failure of expansion joint waterproofing and great construction difficulty. It is difficult to pre-bury a perforated diversion pipe, and the holes in the diversion pipe are easily blocked by the silt in the expansion joint, resulting in failure of the entire expansion joint waterproofing. Utility Model Content

[0003] In response to the technical problems raised above, a water diversion structure for deformation joint leakage in an underground tunnel is provided.

[0004] The technical means adopted by the utility model are as follows:

[0005] A diversion structure for water leakage at deformation joints in underground tunnels, comprising deformation joint filling material and an embedded rubber water stop, and also comprising: geotextile, spring seepage pipe, sealant and a stainless steel water receiving box, wherein the geotextile is wrapped around the outside of the spring seepage pipe to form a geotextile-wrapped spring skeleton permeable diversion pipe structure, the output end of the spring seepage pipe is connected to the drainage ditches on both sides of the tunnel to form a first diversion structure, the top of the geotextile-wrapped spring skeleton permeable diversion pipe structure is filled with deformation joint filling material, the outside is sealed with sealant, a stainless steel water receiving box is arranged at the deformation joint on the back water surface of the structure, the stainless steel water receiving box is fixed to the back water surface of the structure with stainless steel expansion bolts, and the spring seepage pipe penetrates into the drainage box at the bottom of the structure to form a second diversion structure.

[0006] Furthermore, the stainless steel expansion bolt nails are sealed with sealant.

[0007] Furthermore, the stainless steel water collecting box is of exposed type, that is, it is directly placed at the deformation joint on the back surface of the structure.

[0008] Furthermore, the stainless steel water collection box is concealed and built into the back-water surface structure.

[0009] The utility model has the following advantages:

[0010] 1. When the utility model is used for underground tunnel deformation joint leakage diversion structure, deformation joint leakage can be treated without destroying the tunnel structure, or a small amount of the structure can be chiseled off, which can effectively protect the integrity of the tunnel structure;

[0011] 2. When the utility model is used for the underground structure deformation joint leakage diversion structure, the first diversion structure composed of the geotextile wrapped spring frame permeable diversion pipe and the sealant on the outside thereof arranged at the deformation joint can be expanded and contracted synchronously with the deformation joint, and has strong adaptability;

[0012] 3. When the underground structure deformation joint leakage diversion structure of the utility model is adopted, the spring frame permeable diversion pipe arranged at the deformation joint has a geotextile filter layer, and the geotextile non-woven fabric is wrapped outside the spring frame permeable diversion pipe. Only water is allowed to penetrate into the permeable diversion pipe, and other things such as mud and sand are blocked outside the spring frame permeable diversion pipe, ensuring that the spring frame permeable diversion pipe can divert the leakage water after the deformation joint fails in the whole section;

[0013] 4. When the underground structure deformation joint leakage diversion structure of the utility model is adopted, the stainless steel water receiving box arranged at the deformation joint on the back water surface of the structure and the seal on the outside thereof form a second diversion structure, which forms a composite diversion structure with the aforementioned first diversion structure, transforming the blocking into diversion, systematically solving the problem of water leakage at the deformation joint, and ensuring that the deformation of the underground tunnel structure does not cause water leakage into the structure;

[0014] 5. The geotextile wrapped spring frame permeable diversion pipe and stainless steel water collection box are easy to replace and more economical than the internal removable water stop, which is convenient for management and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is used for a water diversion structure for deformation joint leakage in an exposed underground tunnel.

[0017] Figure 2 The utility model is used for a water diversion structure for concealed deformation joint leakage in underground tunnels.

[0018] In the figure: 1. Expansion joint filling material, 2. Embedded rubber waterstop, 3. Back water surface of the structure, 4. Geotextile wrapped spring frame permeable diversion pipe, 5. High modulus polyurethane sealant, 6. Stainless steel water box, 7. Stainless steel expansion bolts. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The present embodiment discloses a diversion structure for water leakage in deformation joints of underground tunnels, including deformation joint filling materials and embedded rubber waterstops, and also including: geotextile, spring seepage pipe, sealant and stainless steel water receiving box, wherein the geotextile is wrapped around the outside of the spring seepage pipe to form a geotextile wrapped spring skeleton permeable diversion pipe structure, the output end of the spring seepage pipe is connected to the drainage ditches on both sides of the tunnel to form a first diversion structure, the top of the geotextile wrapped spring skeleton permeable diversion pipe structure is filled with deformation joint filling materials, and the outside is sealed with sealant, and the deformation joint of the structure is sealed with sealant, so that the first seepage can flow into the drainage ditch through the diversion pipe, in addition, a stainless steel water receiving box is arranged at the deformation joint on the back water surface of the structure, and the stainless steel water receiving box is fixed to the back water surface of the structure with stainless steel expansion bolts, and the spring seepage pipe penetrates into the drainage box at the bottom of the structure to form a second diversion structure.

[0021] In this embodiment, the stainless steel water receiving box is annular, and the stainless steel expansion bolts are sealed with sealant.

[0022] like Figure 1 As shown, the stainless steel water receiving box is exposed, that is, it is directly placed at the deformation joint on the back surface of the structure.

[0023] like Figure 2 As shown, the stainless steel water collection box is concealed and built into the back water surface structure.

[0024] When the present invention is implemented, a small amount of deformation joint filling material 1 is removed from the deformation joint on the back water surface 3 of the tunnel structure, and the geotextile wrapped spring skeleton permeable diversion pipe 4 is filled without damaging the embedded rubber water stop 2, and sealed with a high modulus polyurethane sealant 5. A stainless steel water receiving box 6 is set at the deformation joint on the back water surface of the structure, and the stainless steel water receiving box is fixed to the back water surface of the structure with stainless steel expansion bolts 7, and the outside is sealed with a high modulus polyurethane sealant. The outermost layer of the geotextile wrapped spring skeleton permeable diversion pipe is wrapped with geotextile, which itself is composed of inner and outer geotextile filter membranes and a spiral reinforced spring steel wire lining inside. The leakage generated by the deformation joint can penetrate into the geotextile wrapped spring skeleton permeable diversion pipe, and the fabrics inside and outside the geotextile and the spring skeleton permeable diversion pipe can prevent sediment from penetrating into the pipe. The water seepage from the deformation joint is diverted to the drainage ditches on both sides of the tunnel through the spring skeleton permeable diversion pipe, forming the first diversion structure. The stainless steel water collection box on the back water surface of the structure and the high modulus polyurethane seal on the outside form a second diversion structure. Together with the aforementioned first diversion structure, the composite diversion structure can better solve the problem of water leakage in the expansion joint. It is more economical than the traditional expansion joint leakage treatment structure and is easy to construct.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A water diversion structure for deformation joint leakage in underground tunnels, comprising deformation joint filling material and an embedded rubber water stop, characterized in that: Also includes: Geotextile, spring seepage pipe, sealant and stainless steel water receiving box, the geotextile is wrapped on the outside of the spring seepage pipe to form a geotextile wrapped spring skeleton permeable diversion pipe structure, the output end of the spring seepage pipe is connected to the drainage ditches on both sides of the tunnel to form the first diversion structure, the top of the geotextile wrapped spring skeleton permeable diversion pipe structure is filled with deformation joint filling material, the outside is sealed with sealant, a stainless steel water receiving box is arranged at the deformation joint on the back water surface of the structure, the stainless steel water receiving box is fixed on the back water surface of the structure with stainless steel expansion bolts, the spring seepage pipe penetrates into the drainage box at the bottom of the structure to form the second diversion structure.

2. The underground tunnel deformation joint water leakage diversion structure according to claim 1, characterized in that: The stainless steel expansion bolt nails are sealed with sealant.

3. The underground tunnel deformation joint water leakage diversion structure according to claim 1, characterized in that: The stainless steel water receiving box is of exposed type, that is, it is directly placed at the deformation joint of the back water surface of the structure.

4. The underground tunnel deformation joint water leakage diversion structure according to claim 1, characterized in that: The stainless steel water receiving box is concealed and built into the back water surface structure.

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