Drainage device
By setting up a permeable structure and water collection structure in the gas storage chamber, the water in the surrounding rock cracks is directly collected and discharged, which solves the problems of high drainage cost and complex construction of the gas storage chamber, avoids the blockage of drainage holes, and strengthens lining The protection of the sealing layer improves the structural stability and safety of the gas storage chamber.
Patent Information
- Application Number
- CN202411351584.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-01-10
AI Technical Summary
The drainage cost of gas storage chambers is high and the construction process is complex. In the existing technology, the drainage holes are prone to blockage, which affects the reliability of the sealing layer and leads to accidents such as tunnel collapse and high-pressure gas leakage.
Design a drainage device, including a permeable structure and a first water collecting structure, which is laid along the cross section of the gas storage chamber to collect water from surrounding rock cracks, and discharge it to the outside world through the first water collecting structure to avoid the installation of drainage holes and The corridor simplifies construction technology, reduces costs, and ensures the stability and smoothness of the permeable structure through fixed structures and protective layers.
The drainage construction technology of the gas storage chamber is simplified, costs are reduced, drainage holes are avoided, lining protection is enhanced, structural stability of the gas storage chamber and sealing layer stability are improved, and accident risks are reduced.
Smart Images
Figure CN119288602A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of gas storage chamber drainage, and in particular to a drainage device. Background Art
[0002] Gas storage chambers are generally constructed in newly excavated or reconstructed natural / abandoned underground spaces as gas storage devices. Different from traditional shallow surface traffic tunnels, gas storage chambers are built in deep strata 100-200m underground, reaching the designed burial depth through temporary or permanent traffic tunnels, using drilling and blasting to excavate surrounding rock, and applying concrete lining to form a chamber. In order to ensure the air tightness of the high-pressure chamber, it is necessary to install sealing layers such as steel plates, rubber, and polymer composite materials on the inner boundary of the lining to realize an underground combined gas storage structure with sealing layers, lining structures supporting and transferring loads, and surrounding rocks bearing loads.
[0003] During the maintenance, it was found that the groundwater pressure in the surrounding rock could squeeze the lining and sealing layer, causing them to buckle and fail, leading to leakage of high-pressure gas stored in the gas storage chamber. To address the above problem, the existing method is to reduce the groundwater pressure by digging drainage corridors and drainage holes in the surrounding rock.
[0004] The prior art discloses a device for reducing external water pressure of a deep-buried tunnel lining in a water-rich tunnel section, comprising a lining body, a plurality of first pressure-bearing plates are arranged on the outer ring of the lining body, a plurality of second pressure-bearing plates are arranged on the side close to each other of the first pressure-bearing plates, pressure-bearing grooves are arranged on both side walls of the lining body, two groups of telescopic springs are arranged on the bottom inner wall of the pressure-bearing groove, a movable block is arranged on the other end of the telescopic spring, a pressure-bearing block is arranged on the top surface of the movable block, an invert is arranged on the bottom surface of the lining body, a water collecting trough is arranged on both sides of the top surface of the invert, a first water filter plate and a second water filter plate are arranged on the water collecting trough Second water filter plate, the bottom surface of the invert is provided with a drainage channel, and the top surface of the invert is provided with a track support surface. When the lining body encounters excessively high water pressure, the water pressure will squeeze the pressure-bearing block, and when the pressure-bearing block is squeezed, it will further squeeze the movable block, and when the movable block is squeezed, it will further squeeze the telescopic spring. At this time, under the pressure of the water pressure, the pressure-bearing block will drive the movable block to move downward. At this time, the water flow outside the lining will flow into the drainage channel through the third water pipe, thereby achieving the purpose of reducing the water pressure outside the lining, and then achieving the purpose of protecting the lining body.
[0005] However, pressure grooves are opened on both side walls of the lining body, and water collection grooves are opened on both sides of the top surface of the invert arch. The construction process is very complicated, and it is also necessary to set up structures such as the first pressure plate, the second pressure plate and the telescopic spring, which increases the complexity of the drainage structure and construction process, and is expensive, costing hundreds of millions of yuan. At the same time, a third water pipe is set on both sides of the pressure groove of the lining body to reduce the pressure of the lining body. However, the lining body without the third water pipe is still subject to external water pressure. If things go on for a long time, it is easy to affect the reliability of the sealing layer, resulting in accidents such as tunnel collapse and high-pressure gas leakage. Summary of the invention
[0006] In view of this, the present invention provides a drainage device to solve the problems of high drainage cost and complex construction process of the existing gas storage chamber.
[0007] The present invention provides a drainage device for a gas storage chamber, wherein the gas storage chamber comprises surrounding rock and lining, wherein the lining is arranged inside the surrounding rock, and comprises:
[0008] A permeable structure, provided between the surrounding rock and the lining, for collecting and conducting water in the cracks of the surrounding rock;
[0009] The first water collecting structure is arranged below the gas storage chamber, one side of the first water collecting structure is connected with the water permeable structure, and the other side of the first water collecting structure is connected with the outside.
[0010] Beneficial effect: By setting up a matching permeable structure and a first water collecting structure, the water in the surrounding rock fissures in the gas storage chamber can be collected and discharged to the outside of the gas storage chamber. Compared with the drainage method of the related technology, the permeable structure in the drainage device can be directly laid along the cross section inside the gas storage chamber, and there is no need to set up drainage holes and drainage corridors and other channel structures on the surrounding rock. It can not only achieve the technical effect of simplifying the construction process of the gas storage chamber drainage, but also achieve the technical effect of reducing the construction cost of the drainage device, and at the same time, it can also avoid the problem of drainage holes being blocked after long-term operation. Furthermore, the permeable structure in the drainage device is set between the surrounding rock and the lining. Therefore, the water in the surrounding rock fissures can be conducted out through the permeable structure before applying pressure to the lining, which can achieve the technical effect of strengthening the protection of the lining inside the gas storage chamber and avoiding buckling damage of the lining. Then, the setting of the drainage device can achieve the technical effect of improving the stability of the gas storage chamber structure.
[0011] In an optional embodiment, the water permeable structure is an annular structure.
[0012] Beneficial effect: By setting the water-permeable structure as an annular structure, it can adapt to the cross-sectional shape of the gas storage chamber, and the comprehensiveness of collecting water in the surrounding rock cracks can be improved.
[0013] In an optional embodiment, the water-permeable structure is provided in plurality and is spaced apart along the length direction of the gas storage chamber.
[0014] Beneficial effect: By arranging multiple permeable structures at intervals along the length direction of the gas storage chamber to increase the points where the drainage device collects water in the cracks of the surrounding rock, the integrity of the water collection in the surrounding rock of the gas storage chamber can be ensured, thereby achieving the technical effect of improving the safety of the gas storage chamber.
[0015] In an optional embodiment, the water-permeable structure is made of water-permeable material.
[0016] In an alternative embodiment, the permeable structure comprises natural coarse aggregate and cement slurry;
[0017] And / or, the cube strength of the water-permeable structure is less than 10 MPa and the porosity is not less than 20%.
[0018] Beneficial effects: By using natural coarse aggregate and cement slurry as part of the permeable structure, the water in the cracks of the surrounding rock can be conducted through the permeable structure. At the same time, natural coarse aggregate and cement slurry are part of the raw materials of concrete and are easy to obtain, thereby achieving the technical effect of improving the simplicity of processing of the permeable structure. At the same time, by limiting the strength and porosity of the permeable structure, the compressive resistance of the permeable structure can be improved while ensuring the permeability of the permeable structure, so that the permeable structure can withstand the pressure of water in the surrounding rock, thereby improving the reliability of the permeable structure.
[0019] In an optional embodiment, the drainage device comprises:
[0020] The fixed structure is arranged between the surrounding rock and the lining, and the permeable structure is fixedly connected inside the fixed structure.
[0021] Beneficial effect: The permeable structure is fixed by the fixed structure, so that there is no need to set a hole groove structure for fixing the permeable structure in the surrounding rock or lining, so as to achieve the technical effect of saving the construction cost of the drainage device.
[0022] In an optional embodiment, the drainage device comprises:
[0023] The protective layer is arranged between the lining and the water-permeable structure, and is used to separate the lining and the water-permeable structure and protect the patency of the water-permeable structure.
[0024] Beneficial effect: By setting the protective layer, it is possible to avoid the slurry of the concrete layer from clogging the permeable structure during the process of setting the concrete layer, and the protective layer can ensure the permeability of the permeable structure.
[0025] In an optional implementation, the protective layer is made of rubber and / or plastic.
[0026] Beneficial effect: By limiting the material of the protective layer, the protective layer has a hydrophobic effect, which can prevent water from entering the lining position through the permeable structure and the protective layer and causing pressure on the lining. The water in the surrounding rock cracks can be discharged into the first water collection structure through the permeable structure, and the flow route of the water in the surrounding rock cracks can be limited, thereby achieving the technical effect of improving the protection of the lining.
[0027] In an optional embodiment, the drainage device comprises:
[0028] A second water collection structure is disposed outside the gas storage chamber, one side of which is connected to the first water collection structure, and the other side of which is connected to the outside;
[0029] A drainage channel is connected between the first water collection structure and the second water collection structure.
[0030] Beneficial effect: By setting up a second water collection structure and a drainage channel, the water in the first water collection structure can be discharged to the outside of the gas storage chamber for collection, and the collected water can be discharged at regular intervals, which can reduce the number of times this part of the water is discharged, thereby saving manpower and material resources.
[0031] In an optional embodiment, a barrier structure is provided in the drainage channel, and the barrier structure is used for the circulation of water;
[0032] And / or, the bottom surface of the second water collection structure is lower than the first water collection structure, a drainage pipe is connected between the second water collection structure and the outside, and a driving device is provided in the second water collection structure, and the driving device is used to discharge the water of the second water collection structure to the outside through the drainage pipe.
[0033] Beneficial effects: By setting up a barrier structure, it can ensure that only water in the first water collection structure enters the second water collection structure, and prevent other substances, such as pebbles, from flowing out of the first water collection structure and causing the drainage channel to be blocked. And because the bottom surface of the second water collection structure is lower than the first water collection structure, it is convenient for the water in the first water collection structure to flow into the second water collection structure, and this part of the water is collected for regular discharge. At the same time, by providing a driving device in the second water collection structure, the water in the second water collection structure can be driven to be discharged to the outside through the drainage pipe, thereby achieving the technical effect of improving the convenience of water collection. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0035] Figure 1 is a cross-sectional schematic diagram of the drainage device in this embodiment;
[0036] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction.
[0037] Description of reference numerals:
[0038] 1. Permeable structure; 2. Surrounding rock; 3. Lining; 4. First water-collecting structure; 5. Fixed structure; 6. Protective layer; 7. Second water-collecting structure; 8. Drainage channel; 9. Barrier structure; 101. Submersible pump; 11. Drain pipe; 12. Sealing layer; 13. Ground. DETAILED DESCRIPTION
[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0040] Combine the following Figure 1 to Figure 2 , describing an embodiment of the present invention.
[0041] According to an embodiment of the present invention, a drainage device is provided for a gas storage chamber, wherein the gas storage chamber comprises a surrounding rock 2 and a lining 3, wherein the lining 3 is arranged inside the surrounding rock 2, and comprises:
[0042] The permeable structure 1 is arranged between the surrounding rock 2 and the lining 3 of the gas storage chamber. The permeable structure 1 is made of permeable materials and is used to collect and conduct water in the cracks of the surrounding rock 2;
[0043] The first water collecting structure 4 is arranged at the bottom of the gas storage chamber. One side of the first water collecting structure 4 is connected to the water permeable structure 1, and the other side is connected to the outside.
[0044] By setting up the matched permeable structure 1 and the first water collecting structure 4, the water in the cracks of the surrounding rock 2 in the gas storage chamber can be collected and discharged to the outside of the gas storage chamber. Compared with the drainage method of the related technology, the permeable structure 1 in the drainage device can be directly laid along the cross section inside the gas storage chamber, and there is no need to set up drainage holes and drainage corridors and other channel structures on the surrounding rock 2. It can not only achieve the technical effect of simplifying the construction process of the gas storage chamber drainage, but also achieve the technical effect of reducing the construction cost of the drainage device, and at the same time, it can also avoid the problem of drainage holes being blocked after long-term operation. Further, the permeable structure 1 in the drainage device is set between the surrounding rock 2 and the lining 3. Therefore, the water in the cracks of the surrounding rock 2 can be conducted out through the permeable structure 1 before applying pressure to the lining 3, which can achieve the technical effect of strengthening the protection of the lining 3 in the gas storage chamber and avoiding buckling failure of the lining 3. Then, the setting of the drainage device can achieve the technical effect of improving the stability of the gas storage chamber structure.
[0045] In addition, the gas storage chamber also includes a sealing layer 12, which is located on the inner side of the lining 3. By setting a drainage device, the technical effect of enhancing the protection of the sealing layer 12 can be achieved, so as to further achieve the technical effect of enhancing the stability of the sealing layer 12.
[0046] In addition, in this embodiment, the drainage device further includes:
[0047] The fixed structure 5 is arranged between the surrounding rock 2 and the lining 3, and the permeable structure 1 is fixedly connected inside the fixed structure 5. Based on this, it is not necessary to arrange a hole groove structure for fixing the permeable structure 1 at the surrounding rock 2 or the lining 3, so as to achieve the technical effect of saving the construction cost of the drainage device, and the fixed structure 5 can further fix the position of the permeable structure 1, so as to achieve the technical effect of improving the position stability of the permeable structure 1.
[0048] Furthermore, in this embodiment, the fixing structure 5 is a concrete layer, wherein concrete is easily available, and the convenience of fixing the position of the water-permeable structure 1 can be improved.
[0049] Furthermore, the fixed structure 5 can directly utilize the sprayed concrete layer of the gas storage chamber to fix the position of the permeable structure 1, without the need to set up a separate concrete layer, so as to fix the permeable structure 1, thereby achieving the technical effect of simplifying the difficulty of fixing the permeable structure 1.
[0050] Specifically, the diameter of the permeable structure 1 is not greater than the thickness of the sprayed concrete layer, and is preferably equal to the thickness of the sprayed concrete layer, so that the size of the permeable structure 1 is maximized while ensuring the stability of the position of the permeable structure 1, which can improve the technical effect of the water collection efficiency in the cracks of the surrounding rock 2. In other embodiments, the fixing structure 5 may not be provided, but the permeable structure 1 may be fixed to the surrounding rock 2 by expansion screws.
[0051] In addition, combined Figure 1 As shown, in this embodiment, the water-permeable structure 1 is an annular structure, that is, the water-permeable structure 1 can be arranged along the cross-sectional shape of the gas storage chamber, which can improve the comprehensiveness of water collection in the cracks of the surrounding rock 2.
[0052] Of course, in other embodiments, the shape of the air-permeable structure may also be adjusted according to the change in the cross-sectional shape of the air storage chamber.
[0053] In addition, combined Figure 1 As shown, there are multiple permeable structures 1, which are arranged at intervals along the length direction of the gas storage chamber. Based on this, the points where the drainage device collects water can be increased, which can ensure the integrity of the water collection in the surrounding rock 2 around the gas storage chamber, and ensure that the sealing layer 12 and the lining 3 layer will not be affected by the pressure of the water in the surrounding rock 2, thereby achieving the technical effect of improving the safety of the gas storage chamber.
[0054] Further, along Figure 1 In the horizontal direction shown, the distance between adjacent permeable structures 1 is within the range of 10m to 20m. Based on this, the comprehensive collection of water in the cracks of the surrounding rock 2 can be achieved. Figure 2 In the horizontal direction shown, the diameter of the water-permeable structure 1 is 20 cm to 40 cm.
[0055] Of course, in other embodiments, the distance between adjacent water-permeable structures 1 and the size of the water-permeable structures 1 may be adjusted as needed.
[0056] In addition, in this embodiment, the permeable structure 1 is a permeable material, specifically including natural coarse aggregate and cement slurry, so that the formed permeable structure 1 is a porous low-strength concrete structure, and the cube strength is less than 10MPa, and the porosity is not less than 20%. As a convertible embodiment, the permeable structure 1 can also be a tubular structure with mesh.
[0057] Based on this, the permeable structure 1 not only has a certain compressive strength, but also can achieve the technical effect of conducting water. At the same time, natural coarse aggregate and cement slurry are part of the raw materials of concrete and are easy to obtain, thereby achieving the technical effect of improving the ease of obtaining the permeable structure 1. Furthermore, by limiting the strength and porosity of the permeable structure 1, while ensuring the permeability of the permeable structure 1, the compressive resistance of the permeable structure 1 is improved, so that the permeable structure 1 can withstand the pressure of water in the surrounding rock 2, thereby achieving the technical effect of improving the reliability of the permeable structure 1.
[0058] Of course, in other embodiments, the composition of the water-permeable structure 1 may be adjusted according to the porosity of the water-permeable structure 1 and the required cube strength.
[0059] In addition, combined Figure 1 As shown, preferably, in this embodiment, the first water-collecting structure 4 is located directly below the permeable structure 1, which can ensure that the water in the surrounding rock 2 is completely transferred to the first water-collecting structure 4 along the shape of the permeable structure 1 under the action of gravity, thereby improving the completeness of water collection.
[0060] The first water collection structure 4 is a drainage groove, which is arranged at the bottom surface of the gas storage chamber, and can discharge the water conducted by the permeable structure 1 out of the gas storage chamber. Specifically, the drainage groove can be a rectangular cross-section, and the cross-sectional size of the drainage groove is greater than 30cm×40cm, which can cover the diameter of the permeable structure 1, thereby ensuring that the water conducted by the permeable structure 1 can be completely collected in the drainage groove, and improving the completeness of the water discharge in the surrounding rock 2.
[0061] Furthermore, a filler is provided in the drainage groove, and the filler is used to form a support for the water-permeable structure 1, which can further improve the stability of the position of the water-permeable structure 1. The filler can be pebbles.
[0062] Specifically, the diameter of the pebbles is greater than 5 cm, and at the same time, the porosity of the hydrophobic groove after filling is not less than 30% to ensure the fluidity of water in the hydrophobic groove.
[0063] In addition, the permeable structure 1 and the first water collection structure 4 in this embodiment are both constructed after the gas storage chamber is excavated. Of course, in other embodiments, the drainage device can also be constructed after the gas storage chamber is constructed. Compared with other embodiments, in this embodiment, there is no need to excavate and rebuild the lining 3 and the sealing layer 12 of the gas storage chamber, thereby achieving the technical effect of improving the simplicity of construction.
[0064] In addition, the drainage device also includes:
[0065] The protective layer 6 is disposed between the lining 3 of the water-permeable structure 1 and the water-permeable structure 1 , and is used to separate the lining 3 of the water-permeable structure 1 from the water-permeable structure 1 , so as to protect the patency of the water-permeable structure 1 .
[0066] Based on this, it can be avoided that cement slurry enters the pores of the permeable structure 1 and blocks the permeable structure 1 during the pouring of the sprayed concrete layer. The protective layer 6 can ensure that the permeability of the permeable structure 1 is not affected by the pouring of the sprayed concrete layer.
[0067] Specifically, the protective layer 6 is fixed on the water-permeable structure 1 by bonding or anchoring, which can improve the technical effect of the connection stability between the protective layer 6 and the water-permeable structure 1.
[0068] Further, along Figure 1 In the horizontal direction shown, the protective layer 6 is along Figure 1The horizontal dimension shown is larger than that of the water-permeable structure 1 , and the dimension difference is within the range of 10 cm to 20 cm, which can ensure that the protective layer 6 can completely cover the water-permeable structure 1 and enhance the protection of the water-permeable structure 1 .
[0069] In addition, in this embodiment, the protective layer 6 is made of rubber. Based on this, the protective layer 6 has a hydrophobic effect, which can prevent water from entering the lining 3 through the permeable structure 1 and the protective layer 6, causing pressure on the lining 3 and the sealing layer 12. The protective layer 6 can make the water in the cracks of the surrounding rock 2 be discharged to the first water collection structure 4 only through the permeable structure 1 under the action of gravity, and the flow line of the water in the cracks of the surrounding rock 2 can be limited, thereby achieving the technical effect of enhancing the protection of the lining 3 and the sealing layer 12.
[0070] Of course, in other embodiments, the protective layer 6 may also be made of plastic or a material combining rubber and plastic or other low-permeability materials, which can also achieve the technical effect of protecting the lining 3 .
[0071] In addition, combined Figure 1 As shown, in this embodiment, the drainage device includes:
[0072] The second water collection structure 7 is arranged outside the gas storage chamber, one side of which is connected to the first water collection structure 4, and the other side of which is connected to the outside;
[0073] The drainage channel 8 is connected between the first water collection structure 4 and the second water collection structure 7 .
[0074] By setting up the second water collection structure 7 and the drainage channel 8, the water in the first water collection structure 4 can be discharged to the outside of the gas storage chamber and collected, and the collected water can be discharged at regular intervals. There is no need for daily inspection and supervision, and the number of times this part of water is discharged can be reduced to save manpower and material resources.
[0075] Among them, the drainage channel 8 is along Figure 1 The horizontal dimension shown is greater than 10m, and the diameter of the drainage channel 8 can be 30cm~40cm, so as to ensure that the water in the first water collection structure 4 can be discharged through the drainage channel 8 to outside the range affecting the gas storage chamber, and avoid the situation where this part of the water flows back to the surrounding rock 2 around the gas storage chamber, thereby achieving the technical effect of improving the safety of the gas storage chamber.
[0076] Specifically, the bottom surface of the drainage channel 8 is connected to the bottom surface of the first water collection structure 4. Preferably, the bottom surface of the drainage channel 8 can be tilted downward toward the second water collection structure 7, for example, with an inclination angle of 1°, based on which, under the action of the inclined drainage channel 8, the drainage speed can be increased.
[0077] At the same time, the second water collection structure 7 is a water collection pit to collect and store the water in the first water collection structure 4.
[0078] Furthermore, the cross-section of the second water-collecting structure 7 may be square or cylindrical, which is not limited here.
[0079] Furthermore, the volume of the second water collection structure 7 is not less than 100 cubic meters, which can reduce the frequency of drainage required by the second water collection structure 7, for example, once a year, and can reduce the energy consumption required by the drainage device to further achieve the technical effect of saving manpower and material resources.
[0080] Furthermore, the upper part of the second water collection structure 7 is connected to the outside, that is, the ground 13. For example, the height between the second water collection structure 7 and the ground 13 is not less than 1 m.
[0081] In addition, combined Figure 1 As shown, in this embodiment, a barrier structure 9 is provided in the drainage channel 8, and the barrier structure 9 is used for the circulation of water. Specifically, by providing the barrier structure 9, it can be ensured that only water in the first water collection structure 4 enters the second water collection structure 7, and other substances, such as pebbles, are prevented from flowing out of the first water collection structure 4 and causing the drainage channel 8 to be blocked.
[0082] Among them, the barrier structure 9 is a permeable partition, so that only water can be discharged into the drainage channel 8 through the first water collecting structure 4, avoiding pebbles from being discharged through the first water collecting structure 4 and affecting the drainage effect of the drainage channel 8, thereby achieving the technical effect of ensuring the drainage speed of the drainage channel 8.
[0083] Combination Figure 1 As shown, in this embodiment, the bottom surface of the second water collection structure 7 is lower than the first water collection structure 4, a drain pipe 11 is connected between the second water collection structure 7 and the outside, and a driving device is provided inside the second water collection structure 7, and the driving device is used to discharge the water of the second water collection structure 7 to the outside through the drain pipe 11. By having the bottom surface of the second water collection structure 7 lower than the first water collection structure 4, it is possible to facilitate the water in the first water collection structure 4 to flow into the second water collection structure 7, and collect this part of water for regular discharge. At the same time, by having a driving device inside the second water collection structure 7, the water in the second water collection structure 7 can be driven to be discharged to the outside through the drain pipe 11, thereby improving the technical effect of the convenience of water collection.
[0084] Furthermore, the driving device is a submersible pump 101, which is arranged in the second water collection structure 7 and is used to drive the water in the second water collection structure 7 into the drainage pipe 11 and discharge it to the ground 13 through the drainage pipe 11, thereby achieving the technical effect of continuously collecting water in the cracks of the surrounding rock 2.
[0085] In addition, the drainage process of the drainage device is as follows:
[0086] The water in the cracks of the surrounding rock 2 enters the permeable structure 1. Under the action of its own gravity, this part of the water can flow along the permeable structure 1 and flow into the first water-collecting structure 4, and further flow out to the outside of the gas storage chamber through the drainage channel 8 and be stored in the second water-collecting structure 7. As the use time of the drainage device increases, the water level in the second water-collecting structure 7 rises, and the submersible pump 101 can be operated to make the water in the second water-collecting structure 7 be discharged to the ground 13 through the drainage pipe 11, thereby achieving the technical effect of collecting and discharging the water in the cracks of the surrounding rock 2 and improving the safety and stability of the gas storage chamber structure.
[0087] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A drainage device for a gas storage chamber, the gas storage chamber comprising surrounding rock (2) and lining (3), the lining (3) being arranged on the inner side of the surrounding rock (2), characterized in that: include: A water-permeable structure (1) is provided between the surrounding rock (2) and the lining (3) and is used to collect and conduct water in the cracks of the surrounding rock (2); The first water collection structure (4) is arranged below the gas storage chamber, one side of the first water collection structure (4) is connected to the water permeable structure (1), and the other side is connected to the outside.
2. The drainage device according to claim 1, characterized in that: The water-permeable structure (1) is a ring-shaped structure.
3. The drainage device according to claim 2, characterized in that: The water-permeable structures (1) are provided in plurality and are arranged at intervals along the length direction of the gas storage chamber.
4. The drainage device according to claim 1, characterized in that: The water-permeable structure (1) is made of water-permeable material.
5. The drainage device according to claim 4, characterized in that: The permeable structure (1) comprises natural coarse aggregate and cement slurry; And / or, the cube strength of the water-permeable structure (1) is less than 10 MPa and the porosity is not less than 20%.
6. The drainage device according to any one of claims 1 to 5, characterized in that: include: A fixed structure (5) is arranged between the surrounding rock (2) and the lining (3), and the permeable structure (1) is fixedly connected inside the fixed structure (5).
7. The drainage device according to any one of claims 1 to 5, characterized in that: include: A protective layer (6) is provided between the lining (3) and the water-permeable structure (1) and is used to separate the lining (3) and the water-permeable structure (1).
8. The drainage device according to claim 7, characterized in that: The protective layer (6) is made of rubber and / or plastic.
9. The drainage device according to any one of claims 1 to 5, characterized in that: include: A second water collection structure (7) is arranged outside the gas storage chamber, one side of which is connected to the first water collection structure (4) and the other side of which is connected to the outside; A drainage channel (8) is connected between the first water collection structure (4) and the second water collection structure (7).
10. The drainage device according to claim 9, characterized in that: A barrier structure (9) is provided in the drainage channel (8), and the barrier structure (9) is used for the circulation of water; And / or, the bottom surface of the second water collection structure (7) is lower than the first water collection structure (4), a drainage pipe (11) is connected between the second water collection structure (7) and the outside, and a driving device is provided in the second water collection structure (7), and the driving device is used to discharge the water in the second water collection structure (7) to the outside through the drainage pipe (11).