Waterproof and drainage system for water-rich tunnel in high-altitude alpine region

Abstract

The utility model discloses a waterproof and drainage system for a water-rich tunnel in a high-altitude alpine region, which comprises barrier protection bodies sequentially arranged at intervals along the radial direction of the tunnel, and the barrier protection bodies are sequentially arranged along the radial inner wall of the tunnel. The lining foundation components are sequentially and annularly arranged in the radial direction of the tunnel, the water blocking components and the drainage components are arranged on the lining foundation components, the lining foundation components protrude outwards in the radial direction of the tunnel to form outer annular components used for blocking water, and the drainage components comprise inner annular plates and outer annular plates which are oppositely arranged; an annular grouting gap is formed between the inner annular plate and the outer annular plate, a plurality of water guide pipes are arranged in the annular grouting gap, and drainage side ditches are formed in the two sides of the bottom of the tunnel. According to the waterproof and drainage system for the water-rich tunnel in the high-altitude and high-cold area, tunnel sections with different hydrological conditions can be physically partitioned through the blocking protection body, a plurality of thoroughly partitioned waterproof units are formed, water damage expansion can be prevented and controlled, the water damage position can be rapidly determined, and dismantling and renovation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a water-rich tunnel drainage system in high-altitude and cold areas. Background Art

[0002] Water-rich strata are widely distributed in western my country, and water-rich tunnels are very likely to face geological disasters such as water inrush, mud gushing, and landslides, which seriously restrict tunnel construction. The "drainage-based" water management strategy is likely to cause a waste of water resources in the tunnel area and have a long-term adverse impact on the ecological environment. In recent years, the concept of "combining prevention, drainage, interception, and blocking, taking local conditions into consideration, and comprehensive management" has been adopted. The regulations require that different drainage and prevention strategies be adopted according to the sensitivity of groundwater, burial depth, and water pressure of the stratum where the tunnel is located. The requirements are: "complete blocking" strategy is adopted in shallow buried and low water pressure sections, and "blocking-based, limited discharge" strategy is adopted in other sections. The tunnel structure in the high-pressure section must also have a certain ability to resist water pressure.

[0003] However, the drainage schemes used in existing tunnel design and construction are often not refined enough. Tunnels are not divided into several independent drainage units according to different hydrogeological units, and there are no zoning drainage measures for the surrounding rock and behind the waterproof board. The same drainage scheme is formulated in a "one-size-fits-all" manner according to the same waterproof level. In actual projects, there is often water seepage behind the lining in the leakage section of the tunnel, and the damaged part of the waterproof board cannot be accurately located during the remediation of the defect. Due to the existence of the longitudinal slope of the tunnel, the damage of the waterproof board in one place will often cause leakage of a long section of the tunnel lining downstream. In particular, the groundwater in the surrounding rock of the water-rich section will also cause water damage in the nearby mileage tunnel due to tunnel construction and tunnel longitudinal slope. Utility Model Content

[0004] The purpose of the utility model is to provide a water-rich tunnel waterproofing and drainage system in high-altitude and cold areas to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water-rich tunnel waterproofing and drainage system in a high-altitude and cold region, comprising barrier protection bodies arranged in sequence at intervals along the radial direction of the tunnel, the barrier protection bodies being arranged in sequence along the radial inner wall of the tunnel, the barrier protection bodies comprising lining foundation components arranged in sequence in an annular direction along the radial direction of the tunnel, and water-blocking components and drainage components arranged on the lining foundation components, the lining foundation components protruding outward along the radial direction of the tunnel to form an outer annular component for blocking water, the water-blocking component comprising a water-blocking plate arranged on the outer annular component, the drainage component comprising an inner annular component, the inner annular component being arranged around the outer side of the outer annular component, the inner annular component comprising an inner annular plate and an outer annular plate arranged opposite to each other, an annular grouting gap being formed between the inner annular plate and the outer annular plate, a grouting hole being arranged on the inner annular component being connected to the annular grouting gap, a plurality of water guide pipes being arranged in the annular grouting gap, an annular drainage groove being arranged on the inner annular plate, the water guide pipe being connected to the annular drainage groove, drainage side ditches on both sides of the tunnel bottom, the annular drainage groove being connected to the drainage side ditches.

[0007] In the above-mentioned water-rich tunnel drainage system for high-altitude and cold regions, there are multiple water pipes, and the multiple water pipes are arranged in sequence and at intervals along the circumference of the inner annular plate.

[0008] The above-mentioned water-rich tunnel drainage system in high-altitude and cold areas has multiple annular drainage grooves, which are arranged in sequence and spaced apart along the longitudinal direction of the tunnel, and the annular drainage grooves are connected to each other through radial drainage grooves.

[0009] The above-mentioned water-rich tunnel drainage system in high-altitude and cold areas also includes a connecting protective body, which is arranged between the blocking protective body and the blocking protective body to achieve connection between the blocking protective body and the blocking protective body.

[0010] In the above-mentioned water-rich tunnel drainage system in high-altitude and cold regions, the connecting protection body includes an inner mounting plate and an outer mounting plate, and a grouting space is formed between the inner mounting plate and the outer mounting plate.

[0011] In the above-mentioned water-rich tunnel drainage system in high-altitude and cold areas, a circumferential drainage groove is arranged on the outer mounting plate, and there are multiple circumferential drainage grooves, which are arranged in sequence and spaced apart along the longitudinal direction of the tunnel.

[0012] In the above-mentioned water-rich tunnel drainage system in high-altitude and cold areas, the drainage side ditch is arranged along the longitudinal direction of the tunnel, and each of the circumferential drainage grooves is connected to the drainage side ditch.

[0013] The above-mentioned water-rich tunnel drainage system in high-altitude and cold areas also includes a longitudinal water guide pipe, which is installed on the outer mounting plate and is used to connect the circumferential drainage grooves.

[0014] In the above technical scheme, the water-rich tunnel waterproofing and drainage system for high-altitude and cold areas provided by the embodiment of the utility model includes barrier protection bodies arranged in sequence along the radial direction of the tunnel at intervals, and the barrier protection bodies are arranged in sequence along the radial inner wall of the tunnel. The barrier protection bodies include lining foundation components arranged in sequence in an annular direction along the radial direction of the tunnel, and water-blocking components and drainage components arranged on the lining foundation components. The tunnel sections with different hydrological conditions can be physically divided into several completely partitioned waterproof units through the barrier protection bodies, which can prevent the expansion of water damage, quickly determine the location of water damage, and facilitate demolition and remediation. The drainage components include relatively arranged inner annular plates and outer annular plates, a plurality of water pipes are arranged in the annular grouting gap, and an annular drainage groove is arranged on the outer annular plate. The drainage side ditches on both sides of the bottom of the tunnel can drain the groundwater seeping out after water blocking through the water pipes, the annular drainage groove and the drainage side ditches, thereby reducing the water pressure behind the lining and ensuring the safety of the structural force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the installation of the barrier protection body provided in the embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the structure of the barrier protection body provided by the embodiment of the utility model;

[0018] Figure 3 A schematic structural diagram of a connection protection body provided in an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Barrier protection body; 11. Lining foundation component; 12. Outer annular component; 13. Water-blocking component; 2. Drainage component; 21. Inner annular component; 22. Inner annular plate; 23. Outer annular plate; 24. Annular grouting gap; 25. Water guide pipe; 26. Annular drainage groove; 27. Drainage side ditch; 3. Connecting protection body; 31. Inner mounting plate; 32. Outer mounting plate; 33. Grouting space; 34. Circumferential drainage groove; 35. Longitudinal water guide pipe. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, the embodiment of the utility model provides a water-rich tunnel waterproofing and drainage system in a high-altitude and cold area, including a barrier protection body 1 arranged in sequence along the radial direction of the tunnel, the barrier protection body 1 is arranged in sequence along the radial inner wall of the tunnel, the barrier protection body 1 includes a lining foundation component 11 arranged in sequence along the radial direction of the tunnel, and a water blocking component 13 and a drainage component 2 arranged on the lining foundation component 11, the lining foundation component 11 protrudes outward along the radial direction of the tunnel to form an outer annular component 12 for blocking water, the water blocking component 13 includes a water blocking plate arranged on the outer annular component 12, and the drainage component 2 includes an inner annular component 21, the inner annular member 21 is arranged around the outer side of the outer annular member 12, the inner annular member 21 includes an inner annular plate 22 and an outer annular plate 23 arranged opposite to each other, an annular grouting gap 24 is formed between the inner annular plate 22 and the outer annular plate 23, the inner annular member 21 is provided with grouting holes connected with the annular grouting gap 24, a plurality of water pipes 25 are arranged in the annular grouting gap 24, the outer annular plate 23 is provided with an annular drainage groove 26, the water pipe 25 is connected with the annular drainage groove 26, the drainage side grooves 27 on both sides of the tunnel bottom, the annular drainage grooves 26 are connected with the drainage side grooves 27.

[0023] Specifically, there are multiple barrier protection bodies 1, and the multiple barrier protection bodies 1 are arranged in sequence along the longitudinal direction of the tunnel. The distances between the barrier protection bodies 1 can be the same, so that the barrier protection bodies 1 can be arranged at equal intervals. At the same time, the barrier protection bodies 1 can also be located between different hydrogeological units, thereby separating different hydrogeological units from each other. The barrier protection body 1 includes a lining foundation component 11, a water blocking component 13 and a drainage component 2. The lining foundation component 11 is a concrete structure. The lining foundation component 11 extends radially along the entire ring of the tunnel for more than 3 meters and is longer than 1.5 meters along the longitudinal length of the tunnel. The lining foundation component 11 protrudes radially outward along the tunnel to form an outer annular component 1 for blocking water. 2. The outer annular member 12 has an outer convex depth greater than 1 meter. The water-blocking member 13 includes a water-blocking plate installed on the lining foundation member 11. The drainage member 2 includes an inner annular member 21 arranged on the inner side of the outer annular member 12. The inner annular member 21 includes an inner annular plate 22 and an outer annular plate 23 arranged opposite to each other. The inner annular plate 22 is fixedly installed on the outer annular member 12. The outer annular plate 23 and the inner annular plate 22 are arranged in parallel to form an annular grouting gap 24. The inner annular plate 22 and the outer annular plate 23 can be connected by a connecting side plate. The grouting holes can be set on the outer annular plate 23 or the connecting side plate. The concrete slurry can be poured into the annular grouting gap 24 through the grouting holes.

[0024] In this embodiment, a plurality of water pipes 25 are arranged in the annular grouting gap 24, and the plurality of water pipes 25 are arranged in sequence along the annular grouting gap 24. An annular drainage groove 26 is arranged on the outer annular plate 23. The upper end of the water pipe 25 is connected to the inner annular plate 22, and the lower end of the water pipe 25 is connected to the outer annular plate 23, and the lower end of the water pipe 25 is connected to the annular drainage groove 26. A water guide hole is arranged on the inner annular plate 22, and the water guide hole is connected to the outer annular member 12. Drainage side ditches 27 are arranged on both sides of the bottom of the tunnel, and the lower ends of both sides of the annular drainage groove 26 are connected to the drainage side ditches 27. In this way, the water guide hole, the water pipe 25, the annular drainage groove 26 and the drainage side ditches 27 form a drainage structure. When water enters the barrier protective body 1, it will be transported from the water hole, the water pipe 25 and the annular drainage groove 26 to the drainage side ditches 27, thereby discharging the water.

[0025] The utility model embodiment provides a water-rich tunnel waterproofing and drainage system in high-altitude and cold areas, comprising a barrier protection body 1 arranged in sequence at intervals along the radial direction of the tunnel, the barrier protection body 1 is arranged in sequence along the radial inner wall of the tunnel, the barrier protection body 1 comprises a lining foundation component 11 arranged in sequence in an annular direction along the radial direction of the tunnel, and a water-blocking component 13 and a drainage component 2 arranged on the lining foundation component 11, the barrier protection body 1 can be used to physically partition tunnel sections with different hydrological conditions to form a number of completely partitioned waterproof units, which can prevent and control the expansion of water damage, quickly determine the location of water damage, and facilitate demolition and remediation, and the drainage component 2 comprises an inner annular plate 22 and an outer annular plate 23 arranged relatively, a plurality of water guide pipes 25 are arranged in the annular grouting gap 24, an annular drainage groove 26 is arranged on the outer annular plate 23, and drainage side ditches 27 are provided on both sides of the tunnel bottom, and the groundwater seeping out after water blocking can be drained away through the water guide pipe 25, the annular drainage groove 26 and the drainage side ditches 27, thereby reducing the water pressure behind the lining, thereby ensuring the safety of the structural force.

[0026] In this embodiment, preferably, there are multiple water pipes 25, and the multiple water pipes 25 are arranged in sequence along the circumference of the inner annular plate 22. The upper end of the water pipe 25 is connected to the inner annular plate 22, and the lower end of the water pipe 25 is connected to the outer annular plate 23. The position of the upper end of the water pipe 25 is higher than that of the lower end, so as to guide the water to converge into the annular drainage groove 26.

[0027] In the present embodiment, preferably, there are multiple annular drainage grooves 26, and the multiple annular drainage grooves 26 are arranged in sequence at intervals along the longitudinal direction of the tunnel. The multiple annular drainage grooves 26 are arranged in parallel, and the annular drainage grooves 26 are connected to each other through radial drainage grooves. A group of water pipes 25 are provided on each annular drainage groove 26, and there are multiple water pipes 25 in a group. The multiple water pipes 25 are arranged in sequence at intervals along the circumference of the inner annular plate 22, and there are at least three radial drainage grooves, and the annular drainage grooves 26 are connected in sequence through the radial drainage grooves.

[0028] In this embodiment, preferably, it also includes a connecting protective body 3, which is arranged between the blocking protective body 1 and the blocking protective body 1, and is used to realize the connection between the blocking protective body 1 and the blocking protective body 1. The connecting protective body 3 includes an inner mounting plate 31 and an outer mounting plate 32. The outer mounting plate 32 is fixedly installed on the inner wall of the tunnel. The inner mounting plate 31 is arranged parallel to the outer mounting plate 32. The inner mounting plate 31 and the outer mounting plate 32 are connected by a side connecting plate. A grouting space 33 is formed between the inner mounting plate 31 and the outer mounting plate 32. During the construction process, concrete slurry is injected into the grouting space 33 to form a concrete protective structure.

[0029] In this embodiment, preferably, a circumferential drainage groove 34 is provided on the outer mounting plate 32. There are multiple circumferential drainage grooves 34, and the multiple circumferential drainage grooves 34 are arranged in sequence and spaced apart along the longitudinal direction of the tunnel. The drainage side ditch 27 is arranged along the longitudinal direction of the tunnel. Each circumferential drainage groove 34 is connected to the drainage side ditch 27. When concrete slurry is injected into the grouting space 33 to form a concrete protective structure, the water in the connected protective body 3 can be guided and transported to the drainage side ditch 27 through the circumferential drainage groove 34.

[0030] In this embodiment, preferably, a longitudinal water pipe 35 is provided on the outer mounting plate 32, and the longitudinal water pipe 35 is arranged along the longitudinal direction of the tunnel. The circumferential drainage grooves 34 are connected through the longitudinal water pipe 35, so that the longitudinal water pipe 35 and the circumferential drainage grooves 34 are connected to form a drainage structure for draining the connected protective body 3.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water-rich tunnel drainage system for high-altitude and cold areas, characterized in that: The invention comprises barrier protection bodies which are arranged in sequence and at intervals along the radial direction of the tunnel, wherein the barrier protection bodies are arranged in sequence along the radial inner wall of the tunnel, the barrier protection bodies comprise lining foundation components which are arranged in sequence and in annular direction along the radial direction of the tunnel, and water blocking components and drainage components which are arranged on the lining foundation components, the lining foundation components protrude outward along the radial direction of the tunnel to form an outer annular component for blocking water, the water blocking components comprise a water blocking plate which is arranged on the outer annular component, the drainage components comprise an inner annular component which is arranged around the outer side of the outer annular component, the inner annular component comprises an inner annular plate and an outer annular plate which are arranged opposite to each other, an annular grouting gap is formed between the inner annular plate and the outer annular plate, a grouting hole which is connected to the annular grouting gap is arranged on the inner annular component, a plurality of water guide pipes are arranged in the annular grouting gap, an annular drainage groove is arranged on the inner annular plate, the water guide pipes are connected to the annular drainage groove, drainage side grooves are provided on both sides of the bottom of the tunnel, and the annular drainage grooves are connected to the drainage side grooves.

2. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 1 is characterized in that: There are a plurality of water conduits, and the plurality of water conduits are sequentially spaced apart along the circumference of the inner annular plate.

3. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 2 is characterized in that: There are a plurality of annular drainage grooves, which are arranged in sequence and spaced apart along the longitudinal direction of the tunnel, and the annular drainage grooves are connected to each other through radial drainage grooves.

4. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 1 is characterized in that: It also includes a connecting protective body, which is arranged between the blocking protective body and the blocking protective body, and is used to connect the blocking protective body and the blocking protective body.

5. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 4 is characterized in that: The connection protection body comprises an inner mounting plate and an outer mounting plate, and a grouting space is formed between the inner mounting plate and the outer mounting plate.

6. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 5 is characterized in that: The outer mounting plate is provided with a circumferential drainage groove, and there are a plurality of the circumferential drainage grooves, which are sequentially spaced apart along the longitudinal direction of the tunnel.

7. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 6 is characterized in that: The side drainage ditch is arranged along the longitudinal direction of the tunnel, and each of the circumferential drainage grooves is connected to the side drainage ditch.

8. The water-rich tunnel drainage system for high-altitude and cold regions according to claim 7 is characterized in that: It also includes a longitudinal water pipe, which is installed on the outer mounting plate and is used to connect the circumferential drainage grooves.

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