Cavern waterproof structure

Abstract

The utility model relates to a waterproof structure of a cavern. The structure comprises first waterproof plates, second waterproof plates, an annular drainage mechanism and a transverse drainage mechanism, the first waterproof plates are evenly laid on the inner wall of a primary support layer in the extending direction of the cavern, and the second waterproof plates are evenly laid on the outer wall of a secondary lining layer in the extending direction of the cavern; a cavity is reserved between the first waterproof plate and the second waterproof plate, and the cavity is provided with an annular drainage mechanism used for conducting drainage on seeping water at the joint of the first waterproof plate and a transverse drainage mechanism used for conducting drainage on seeping water at the damaged position of the first waterproof plate. Seepage water at the lap joint position and the damaged position of the first waterproof plate can be drained and drained through the annular drainage mechanism and the transverse drainage mechanism, then seepage water is further prevented from permeating into the secondary lining layer through the second waterproof plate, and the water seepage phenomenon of the cavern is avoided; the possibility that the secondary lining layer is corroded is reduced; and the waterproof effect of the cavern is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of water seepage and drainage, and in particular to a cave waterproof structure. Background Art

[0002] With the gradual development of my country's transportation network, the construction of railways and highways has been continuously promoted to remote mountainous areas. However, with the extension of the operating life of caverns, a large number of caverns have experienced various diseases, such as water leakage, lining cracking, frost damage, material degradation, etc. Among various cavern diseases, water leakage is currently a major problem in highway caverns. According to incomplete statistics, more than 80% of caverns in my country that have been in operation for more than 10 years have water leakage diseases. It can be seen that water leakage diseases are widely present in operating highway caverns. Cavern water leakage will seriously reduce the durability of the lining structure, especially when the groundwater is corrosive, the impact is greater, and directly affects the safety of cavern operation.

[0003] At present, the existing caverns are composed of an initial support layer, a water retaining plate, and a secondary lining layer from the outside to the inside. The water seepage prevention of the cavern mainly relies on the barrier of the water retaining plate, so that the accumulated water is discharged from the side wall of the arched cavern. However, when the cavern is long, the water retaining plate cannot be set as a whole piece, and multiple water retaining plates need to be overlapped. However, joints will appear between the plates when overlapping, and the water retaining plate may be partially damaged during the construction process, so that the seepage water directly penetrates into the secondary lining layer from the joints and damaged parts, causing overflow and siltation between the water retaining plate and the secondary lining layer, and eventually leading to water seepage in the cavern.

[0004] Therefore, providing a structure that can improve the waterproof effect of the cave is an urgent problem to be solved in the field. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related technology, the present application provides a cavern waterproofing structure, which can drain and discharge the seepage water at the joints of the first waterproofing board through an annular drainage mechanism, and then drain and discharge the seepage water at the damaged part of the first waterproofing board through a lateral drainage mechanism, and then use a second waterproofing board to further block the seepage water from penetrating into the secondary lining layer, thereby avoiding the occurrence of cavern seepage, and further improving the cavern waterproofing effect.

[0006] The present application provides a cavern waterproof structure, comprising a first waterproof board, a second waterproof board, an annular drainage mechanism, and a lateral drainage mechanism, wherein the first waterproof board is evenly laid on the inner wall of an initial support layer along an extension direction of the cavern, the second waterproof board is evenly laid on the outer wall of a secondary lining layer along an extension direction of the cavern, and a cavity is left between the first waterproof board and the second waterproof board, and an annular drainage mechanism for draining water seeping at a joint of the first waterproof board and a lateral drainage mechanism for draining water seeping at a damaged position of the first waterproof board are arranged in the cavity.

[0007] Optionally, in some embodiments, the annular drainage mechanism includes an annular drainage blind pipe and an annular drainage pipe, the annular drainage pipe is a semicircular groove pipe, and the annular drainage pipe is fixedly installed on the outside of the second waterproof board, and an annular drainage blind pipe is fixedly arranged in the annular drainage pipe, and the annular drainage blind pipe is fitted with the first joint.

[0008] Optionally, in some embodiments, the end of the annular drain pipe is connected to a drain ditch.

[0009] Optionally, in some embodiments, a transverse drainage mechanism is arranged between two adjacent annular drainage mechanisms at equal intervals in the transverse direction, and the infiltrated water at the damaged position of the first waterproof board can be guided to the drainage ditch through the transverse drainage mechanism.

[0010] Optionally, in some embodiments, the lateral drainage mechanism includes a lateral drainage blind pipe and a lateral drainage pipe, the lateral drainage pipe is a semicircular groove pipe, and the lateral drainage pipe is fixedly installed on the outside of the second waterproof board, and the lateral drainage blind pipe is fixedly arranged inside the lateral drainage pipe.

[0011] Optionally, in some embodiments, the first seam on the first waterproof board and the second seam on the second waterproof board are staggered.

[0012] Optionally, in some embodiments, a non-woven fabric is provided between the first waterproof board and the initial supporting layer.

[0013] Optionally, in some embodiments, geotextiles are provided on the annular drainage mechanism and the lateral drainage mechanism.

[0014] The technical solution provided by this application may have the following beneficial effects:

[0015] The present application provides a cavern waterproof structure, which can drain and discharge the seepage water at the overlap of the first waterproof board through an annular drainage mechanism, and then drain and discharge the seepage water at the damaged part of the first waterproof board through a lateral drainage mechanism, and then further block the seepage water from penetrating into the secondary lining layer through a second waterproof board, thereby avoiding the occurrence of cavern seepage; reducing the possibility of corrosion of the secondary lining layer; and further improving the cavern waterproofing effect.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0018] Figure 1 is a schematic diagram of a cavern waterproof structure shown in an embodiment of the present application;

[0019] Figure 2 It is a partial structural schematic diagram of a cavern waterproof structure shown in an embodiment of the present application;

[0020] Figure 3 It is a partial structural schematic diagram of a cavern waterproof structure shown in an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of the structure in which the annular drainage pipe and the annular drainage blind pipe are separated as shown in the embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of a transverse drainage tube shown in an embodiment of the present application;

[0023] Figure 6 It is a partial structural schematic diagram of the cavern waterproof structure shown in the embodiment of the present application.

[0024] Figure numerals: 1-initial support layer, 2-non-woven fabric, 3-first waterproof board, 4-annular drainage mechanism, 41-annular drainage pipe, 411-annular drainage blind pipe, 412-annular drainage pipe, 5-second waterproof board, 6-secondary lining layer, 7-lateral drainage mechanism, 71-lateral drainage blind pipe, 72-lateral drainage pipe, 73-geotextile, 8-first seam, 9-second seam. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0026] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In response to the above-mentioned problems, the present application provides a cavern waterproofing structure, which can collect and discharge water leaking from the waterproof board for a second time, reduce the possibility of corrosion of the secondary lining layer, and avoid the occurrence of cavern water seepage.

[0030] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1 and Figure 2 In this embodiment, the cavern waterproof structure includes a first waterproof board 3, a second waterproof board 5, an annular drainage mechanism 4, and a transverse drainage mechanism 7. The first waterproof board 3 is evenly laid on the inner wall of the initial support layer 1 along the extension direction of the cavern, and the second waterproof board 5 is evenly laid on the outer wall of the secondary lining layer 6 along the extension direction of the cavern. A cavity is left between the first waterproof board 3 and the second waterproof board 5. The cavity is provided with an annular drainage mechanism 4 for draining the seepage at the first joint 8, and a transverse drainage mechanism 7 for draining the seepage at the damaged position of the first waterproof board 3. The seepage at the overlap of the first waterproof board 3 can be drained and discharged through the annular drainage mechanism 4, and the seepage at the damaged position of the first waterproof board 3 can be drained and discharged through the transverse drainage mechanism 7, and then the seepage water is further blocked from penetrating into the secondary lining layer 6 through the second waterproof board 5, so as to avoid the occurrence of cavern seepage; reduce the possibility of corrosion of the secondary lining layer 6; and further improve the cavern waterproof effect.

[0032] See also Figure 4In this embodiment, the annular drainage mechanism 4 includes an annular drainage blind pipe 411 and an annular drainage pipe 412. The annular drainage pipe 412 is a semicircular groove pipe, and the annular drainage pipe 412 is fixedly installed on the outside of the second waterproof plate 5. The annular drainage blind pipe 411 is fixedly arranged in the annular drainage pipe 412. The annular drainage blind pipe 411 is attached to the first joint 8, and the end of the annular drainage pipe 412 is connected to the drainage ditch; see Figure 3 The lateral drainage mechanism 7 includes a lateral drainage blind pipe 71 and a lateral drainage pipe 72. The lateral drainage pipe 72 is a semicircular groove pipe, and the lateral drainage pipe 72 is fixedly installed on the outside of the second waterproof plate 5. The lateral drainage blind pipe 71 is fixedly arranged in the lateral drainage pipe 72. The lateral drainage pipe 72 is connected to the annular drainage pipe 412.

[0033] Specifically, the first waterproof board 3 evenly laid along the extension direction of the cavern cannot be set as a whole because the cavern is too long, so it is necessary to overlap multiple boards during the construction process. There will be a first joint 8 between the boards when overlapping, and the annular drainage mechanism 4 is installed at the first joint 8, so that the infiltration water flowing from the initial support layer 1 passes through the first joint 8, and is absorbed and drained into the semicircular annular drainage pipe 412 by the annular drainage blind pipe 411. The semicircular opening of the annular drainage pipe 412 faces the inner wall of the cavern, and the absorbed infiltration water will flow out to both ends along the annular drainage pipe 412, and the two ends of the annular drainage pipe 412 are connected to the drainage ditch (not shown in the figure), so that all the infiltration water can flow out from the drainage ditch. In addition, the transverse drainage mechanism 7 is evenly arranged between the annular drainage mechanisms 4. When the first waterproof board 3 is partially damaged, the infiltration water will be absorbed and drained by the transverse drainage blind pipe 71 at the nearest position, and then the infiltration water will be discharged to the annular drainage pipe 41 through the transverse drainage pipe 72.

[0034] Furthermore, in order to improve the waterproof effect of the first waterproof board 3, a non-woven fabric 2 is arranged between the first waterproof board 3 and the initial supporting layer 1, and the waterproof effect can be further improved by spraying a waterproof coating on the non-woven fabric 2 layer.

[0035] Based on the above embodiments, Figure 5 As shown, a geotextile 73 is fixedly wrapped on the annular drainage mechanism 4 and the lateral drainage mechanism 7. The geotextile 73 has good water-conducting performance. The use of the geotextile 73 can not only improve the drainage and discharge of infiltrated water by the annular drainage mechanism 4 and the lateral drainage mechanism 7, but also block the entry of sand, soil and concrete, thereby extending the service life of the annular drainage mechanism 4 and the lateral drainage mechanism 7.

[0036] Furthermore, an annular drainage mechanism 4 and a lateral drainage mechanism 7 may be provided between the second waterproof board 5 and the secondary lining layer 6, so as to further improve the waterproof effect of the cavern.

[0037] Furthermore, if Figure 6As shown, the first seam 8 on the first waterproof plate and the second seam 9 on the second waterproof plate are staggered with each other, so that the infiltrated water will not flow directly through the gap, thereby improving the waterproof effect.

[0038] On the basis of the above-mentioned embodiment, the annular drainage pipe 41 composed of the annular drainage blind pipe 411 and the annular drainage pipe 412 can be provided with multiple annular drainage pipes 41 according to actual use needs, that is, the annular drainage mechanism 4 is composed of multiple annular drainage pipes 41, the purpose is to facilitate the collection of surrounding leakage water through multiple annular drainage blind pipes 411, and drain and discharge it to the drainage ditch through the annular drainage pipe 412, to prevent the problem of downward leakage due to too small a number, slow collection and drainage speed of leakage water. When there are three annular drainage pipes 41, the middle one (the second one from left to right or from right to left) corresponds to the lower edge of the first joint 8 at the overlapping position of the first waterproof board 3. If there are four annular drainage pipes 41, the second or third annular drainage pipe 41 from left to right or from right to left corresponds to the lower edge of the first joint 8, so that when the overlapping position connection is unreliable, the leakage water will leak out from the lower edge of the first joint 8, and the annular drainage pipe 412 and the annular drainage blind pipe 411 in the middle position can quickly collect and drain the leakage water, and the annular drainage pipe 412 and the annular drainage blind pipe 411 on both sides can assist in the collection and drainage of leakage water and the collection and drainage of leakage water at the nearby first waterproof board 3 that is locally punctured and damaged.

[0039] Specific working process:

[0040] In the cavern waterproof structure, after the infiltration water passes through the initial support layer 1, most of the infiltration water is blocked by the first waterproof board 3, and then gradually flows downward along the outer wall of the first waterproof board 3 to the drainage ditch. After that, a small amount of infiltration water flows out from the first joint 8 and the damaged part. They are respectively absorbed and drained by the annular drainage blind pipe 411 and the transverse drainage blind pipe 71 at the lower edge of the first joint 8, and then discharged from the annular drainage pipe 412 and the transverse drainage pipe 72 to the drainage ditch. Finally, the remaining small amount of infiltration water is blocked by the second waterproof board 5 and cannot penetrate into the secondary lining layer 6, forming a complete cavern waterproof structure.

[0041] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A cavern waterproof structure, characterized in that: The cavern waterproof structure comprises a first waterproof board (3), a second waterproof board (5), an annular drainage mechanism (4), and a transverse drainage mechanism (7); the first waterproof board (3) is evenly laid on the inner wall of the initial support layer (1) along the extension direction of the cavern; the second waterproof board (5) is evenly laid on the outer wall of the secondary lining layer (6) along the extension direction of the cavern; a cavity is left between the first waterproof board (3) and the second waterproof board (5); the cavity is provided with an annular drainage mechanism (4) for draining water seepage at the joint of the first waterproof board (3), and a transverse drainage mechanism (7) for draining water seepage at the damaged position of the first waterproof board (3).

2. The cavern waterproof structure according to claim 1, characterized in that: The annular drainage mechanism (4) comprises an annular drainage blind pipe (411) and an annular drainage pipe (412); the annular drainage pipe (412) is a semicircular groove pipe, and the annular drainage pipe (412) is fixedly installed on the outside of the second waterproof plate (5); the annular drainage blind pipe (411) is fixedly arranged inside the annular drainage pipe (412), and the annular drainage blind pipe (411) is in contact with the first joint (8).

3. The cavern waterproof structure according to claim 2, characterized in that: The end of the annular drainage pipe (412) is connected to the drainage ditch.

4. The cavern waterproof structure according to claim 3, characterized in that: A transverse drainage mechanism (7) is arranged between two adjacent annular drainage mechanisms (4) at equal intervals in the transverse direction, and the transverse drainage mechanism (7) can guide the infiltrated water at the damaged position of the first waterproof plate (3) to the drainage ditch.

5. The cavern waterproof structure according to claim 1, characterized in that: The transverse drainage mechanism (7) comprises a transverse drainage blind pipe (71) and a transverse drainage pipe (72); the transverse drainage pipe (72) is a semicircular groove pipe, and the transverse drainage pipe (72) is fixedly installed on the outside of the second waterproof plate (5); and the transverse drainage blind pipe (71) is fixedly arranged inside the transverse drainage pipe (72).

6. The cavern waterproof structure according to claim 1, characterized in that: The first joint (8) on the first waterproof board (3) and the second joint (9) on the second waterproof board (5) are staggered.

7. The cavern waterproof structure according to claim 1, characterized in that: A non-woven fabric (2) is provided between the first waterproof board (3) and the initial supporting layer (1).

8. The cavern waterproof structure according to claim 1, characterized in that: The annular drainage mechanism (4) and the lateral drainage mechanism (7) are provided with geotextiles (73).

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