CN219710198U - Arrangement structure for eliminating underground water jacking load of full-reservoir basin seepage-proofing structure - Google Patents
Arrangement structure for eliminating underground water jacking load of full-reservoir basin seepage-proofing structure Download PDFInfo
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Abstract
The utility model discloses an arrangement structure, in particular an arrangement structure for eliminating groundwater jacking load of a full-reservoir basin seepage-proofing structure, and belongs to the technical field of design and construction of hydraulic and hydroelectric engineering structures. The arrangement structure for eliminating the groundwater jacking load of the seepage-proofing structure of the full basin has the advantages of relatively small engineering quantity, relatively low investment cost and good drainage effect. The arrangement structure comprises a reservoir basin, and further comprises a sliding type unidirectional water seepage and depressurization system, wherein an impermeable layer is paved on the inner wall of the reservoir basin, and pressurized water located on the inner side and the outer side of the impermeable layer is unidirectional communicated towards the inner side of the reservoir basin through the sliding type unidirectional water seepage and depressurization system.
Description
Technical Field
The utility model relates to an arrangement structure, in particular to an arrangement structure for eliminating groundwater jacking load of a full-reservoir basin seepage-proofing structure, and belongs to the technical field of design and construction of hydraulic and hydroelectric engineering structures.
Background
Term interpretation:
seepage prevention of the whole basin: the method is characterized in that engineering treatment measures are adopted to perform anti-seepage treatment on the excavated basin or the natural basin, so that the water in the basin is isolated from the external water environment, and the water in the basin is prevented from seeping outwards;
groundwater: water imparted into the subsurface formation;
jacking function: when the water level in the basin is lower than the underground water level outside the basin, under the action of the water head difference, the floating force is generated on the seepage-proofing structure of the basin.
Along with the proposal of the national '3060' strategy, new energy sources represented by wind power and photoelectricity are developed in an explosive manner, new requirements are also put forward for the traditional energy power system, and the traditional power system for power generation, transmission, distribution, transformation and use is changed into a novel power system for source, network, load, storage and adjustment. The pumped storage technology is used as water as an energy storage medium, is an energy storage scheme which is the most mature in the prior art, has optimal economy and has the largest large-scale development condition, and is the key for realizing the conversion of a novel power system. As is well known, pumped storage is to pump water medium of a lower reservoir to an upper reservoir through electric energy, so as to realize energy storage, and then to transfer potential energy and electric energy from water of the upper reservoir to the lower reservoir, wherein water is the key of energy transfer in the process, and leakage is a key problem in the construction process of pumped storage. In order to solve the leakage problem of the upper reservoir, a full reservoir basin seepage prevention mode is mostly adopted to isolate the water in the upper reservoir from the surrounding groundwater environment.
Although the full basin seepage-proof form can isolate the water in the warehouse from the surrounding groundwater environment, the leakage of the water in the warehouse is prevented. However, the anti-seepage mode of the full-warehouse basin has the reaction of underground water, so that the underground water jacking effect is easy to form when the warehouse is empty, the anti-seepage body is easy to damage, and the anti-seepage effect is easy to influence.
As described above, the full basin seepage-proofing form can isolate the water in the basin from the surrounding groundwater environment, and prevent leakage of the water in the basin. However, the anti-seepage form of the whole warehouse basin has the reaction of groundwater, and groundwater jacking effect is easy to form when the warehouse is empty, so that anti-seepage bodies are damaged, and the like. The prior art mainly has two aspects, namely, the jacking effect of the underground water is counteracted by the dead weight of the whole basin seepage-proofing measure structure, and the drainage is mainly used, and a water interception and drainage gallery is arranged at the bottom of the upper water basin to drain the underground water, reduce the water level of the underground water and eliminate the jacking effect of the underground water. Both schemes have the problems of large engineering quantity, low economical efficiency, uncontrollable effect and the like.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the arrangement structure for eliminating the groundwater jacking load of the seepage-proofing structure of the full basin has the advantages of relatively small engineering quantity, relatively low investment cost and good drainage effect.
The technical scheme adopted for solving the technical problems is as follows: an arrangement structure for eliminating the ground water jacking load of a full reservoir basin seepage-proofing structure comprises a reservoir basin, a sliding type unidirectional seepage pressure reducing system, a seepage-proofing layer is paved on the inner wall of the reservoir basin, the pressure water positioned on the inner side and the outer side of the seepage-proofing layer is unidirectional communicated towards the inner side of the reservoir basin through the sliding type unidirectional seepage pressure reducing system,
wherein, the impermeable layer is an asphalt concrete layer paved on the inner wall of the basin of the water storage reservoir.
Further, the sliding type one-way water seepage and depressurization system comprises a one-way filtration water seepage mechanism and a reverse water sealing closing mechanism, wherein the one-way filtration water seepage mechanism is embedded in the foundation of the basin bottom of the water storage basin, and the one-way filtration water seepage mechanism is opened or closed towards a groundwater output port in the water storage basin through the reverse water sealing closing mechanism under the matching of water pressure at the inner side and the outer side of the seepage prevention layer.
The water-permeable hole is drilled in the foundation of the basin bottom of the water storage reservoir, the water-permeable filtering layer group is covered on the inner wall of the water-permeable hole, and the reverse water-sealing closing mechanism is inserted in the water-permeable hole covered with the water-permeable filtering layer group.
Further, the unidirectional water seepage filtering layer group at least comprises a water seepage base layer and a reverse filtering cladding layer, wherein the water seepage base layer is fixedly connected to the inner wall of the water delivery base hole, the reverse filtering cladding layer is fixedly connected to the water seepage base layer, and the inner wall of the water delivery base hole is formed by the reverse filtering cladding layer.
The preferable mode of the scheme is that the reverse water sealing and closing mechanism at least comprises a guide water conveying pipe and a water sealing and closing assembly, and the water sealing and closing assembly is arranged at the open upper end of the guide water conveying pipe; in the working process, the open upper end of the water delivery base hole is opened or closed under the cooperation of the water sealing closing component and the water pressure at the inner side and the outer side of the seepage prevention layer through a guide water delivery pipe inserted in the water delivery base hole.
Further, the guide water delivery pipe is composed of a steel pipe, a plurality of water passing holes are uniformly distributed on the side wall of the steel pipe, and the water sealing closing assembly is arranged at the open upper end of the steel pipe.
The preferable mode of the scheme is that the water sealing closing component comprises a fixed head and a sealing gasket, the sealing gasket is arranged on the open upper end of the steel pipe through the fixed head, the open upper end of the water delivery base hole is opened or closed under the cooperation of the groundwater pressure of the steel pipe and the water pressure of the basin through the sealing gasket,
wherein the diameter of the sealing gasket is at least one time larger than the inner diameter of the water delivery base hole.
Further, a plurality of water delivery base holes are arranged on the bottom of the basin of the reservoir basin, and each water delivery base hole is uniformly distributed in the bottom of the basin of the reservoir basin; the inner wall of each water delivery base hole is covered with a one-way water seepage filtering layer group, and each water delivery base hole is internally and uniformly provided with a reverse water sealing closing mechanism.
The beneficial effects of the utility model are as follows: the technical scheme provided by the utility model is based on the existing reservoir basin, an impermeable layer is paved on the inner wall of the reservoir basin, then a sliding type unidirectional water seepage and depressurization system is additionally arranged, and pressurized water positioned on the inner side and the outer side of the impermeable layer is communicated unidirectionally towards the inner side of the reservoir basin through the sliding type unidirectional water seepage and depressurization system. Therefore, the method changes the prior art that the method is adopted when the underground water jacking load is eliminated by taking the row and the guide as main materials: the bottom of the basin of the upper water reservoir is provided with technical measures of large engineering quantity, low economical efficiency, uncontrollable effect and the like, thereby achieving the purposes of effectively reducing the groundwater level and eliminating the jacking effect of groundwater. At this time, when the underground water jacking impermeable layer outside the impermeable layer is eliminated, the jacking load of the underground water can be eliminated by balancing the water pressure inside and outside the impermeable layer of the storage reservoir basin through the sliding type unidirectional water seepage depressurization system arranged on the basin bottom of the storage reservoir basin, and correspondingly, the sliding type unidirectional water seepage depressurization system can only be communicated unidirectionally towards the inner side of the storage reservoir basin to balance the water pressure inside and outside the impermeable layer of the storage reservoir basin when the water level inside the storage reservoir basin is lower than the water level outside the storage reservoir basin. Therefore, the technical scheme of the utility model only inputs the pressure water outside the impermeable layer towards the inner side of the reservoir basin in a one-way communication way through the sliding type one-way seepage depressurization system, so that the aim of reducing the pressure of the outside water when the outside underground water level is higher than the inside stored water level is fulfilled, the engineering quantity of the technical scheme of the utility model is relatively smaller, the investment cost is relatively lower, the drainage effect is particularly good, and the construction period can be obviously shortened, the engineering quantity is reduced and the aim of reducing the investment cost is fulfilled by adopting the process method which is suitable for the arrangement structure.
Drawings
FIG. 1 is a schematic diagram of a cross-sectional structure of a layout structure for eliminating the jacking load of groundwater in a full basin seepage-proofing structure, wherein the ground water level is higher than the water level in Yu Ku;
FIG. 2 is a schematic diagram of a cross-sectional structure of an arrangement structure for eliminating the jacking load of groundwater in a full basin seepage-proofing structure, wherein the groundwater level is lower than the water level in the basin;
FIG. 3 is a cross-sectional view of a sliding one-way water seepage and depressurization system involved in the arrangement of the present utility model for eliminating groundwater jacking loads of a full basin seepage prevention structure;
fig. 4 is a cross-sectional view A-A of fig. 3.
Marked in the figure as: the water storage basin comprises a water storage basin 1, a sliding type one-way water seepage and depressurization system 2, an impermeable layer 3, a one-way filtration water seepage mechanism 4, a reverse water sealing closing mechanism 5, a water conveying base hole 6, a one-way water seepage filtration layer group 7, a water seepage base layer 8, a reverse filtration coating 9, a guide water conveying pipe 10, a water sealing closing assembly 11, a water passing hole 12, a fixed head 13 and a sealing gasket 14.
Detailed Description
As shown in figures 1, 2, 3 and 4, the utility model provides an arrangement structure for eliminating the groundwater jacking load of the seepage-proofing structure of the full basin, which has relatively small engineering quantity, relatively low investment cost and good drainage effect, and a process method for eliminating the groundwater jacking load of the seepage-proofing structure of the full basin by adopting the arrangement structure. A arrangement structure for eliminating whole storehouse basin seepage prevention structure groundwater jacking load, including reservoir basin 1, its characterized in that: the arrangement structure further comprises a sliding type one-way water seepage and depressurization system 2, an impermeable layer 3 is paved on the inner wall of the reservoir basin 1, and pressurized water located on the inner side and the outer side of the impermeable layer 3 is communicated in one direction towards the inner side of the reservoir basin 1 through the sliding type one-way water seepage and depressurization system 2, wherein the impermeable layer 3 is an asphalt concrete layer paved on the inner wall of the reservoir basin. The technical scheme provided by the utility model is based on the existing reservoir basin, an impermeable layer is paved on the inner wall of the reservoir basin, then a sliding type unidirectional water seepage and depressurization system is additionally arranged, and pressurized water positioned on the inner side and the outer side of the impermeable layer is communicated unidirectionally towards the inner side of the reservoir basin through the sliding type unidirectional water seepage and depressurization system. Therefore, the method changes the prior art that the method is adopted when the underground water jacking load is eliminated by taking the row and the guide as main materials: the bottom of the basin of the upper water reservoir is provided with technical measures of large engineering quantity, low economical efficiency, uncontrollable effect and the like, thereby achieving the purposes of effectively reducing the water level of the underground water and eliminating the jacking effect of the underground water. At this time, when the underground water jacking impermeable layer outside the impermeable layer is eliminated, the jacking load of the underground water can be eliminated by balancing the water pressure inside and outside the impermeable layer of the storage reservoir basin through the sliding type unidirectional water seepage depressurization system arranged on the basin bottom of the storage reservoir basin, and correspondingly, the sliding type unidirectional water seepage depressurization system can only be communicated unidirectionally towards the inner side of the storage reservoir basin to balance the water pressure inside and outside the impermeable layer of the storage reservoir basin when the water level inside the storage reservoir basin is lower than the water level outside the storage reservoir basin. Therefore, the technical scheme of the utility model only inputs the pressure water outside the impermeable layer towards the inner side of the reservoir basin in a one-way communication way through the sliding type one-way seepage depressurization system, so that the aim of reducing the pressure of the outside water when the outside underground water level is higher than the inside stored water level is fulfilled, the engineering quantity of the technical scheme of the utility model is relatively smaller, the investment cost is relatively lower, the drainage effect is particularly good, and the construction period can be obviously shortened, the engineering quantity is reduced and the aim of reducing the investment cost is fulfilled by adopting the process method which is suitable for the arrangement structure.
In the above embodiment, in combination with actual production conditions, in order to facilitate construction and installation, the sliding type one-way water seepage and depressurization system 2 of the present utility model includes the one-way filtration water seepage mechanism 4 and the reverse water sealing and closing mechanism 5, wherein the one-way filtration water seepage mechanism 4 is embedded in the foundation of the basin bottom of the water storage basin, and the one-way filtration water seepage mechanism 4 is opened or closed towards the underground water outlet in the water storage basin 1 through the water distribution of the reverse water sealing and closing mechanism 5 in the water pressure of the outside of the impermeable layer. At this time, the unidirectional filtration water seepage mechanism 4 comprises a water delivery base hole 6 and a unidirectional water seepage filtration layer group 7, the water delivery base hole 6 is drilled in the base of the basin bottom of the water storage reservoir basin, the unidirectional water seepage filtration layer group 7 is covered on the inner wall of the water delivery base hole 6, and the reverse water sealing closing mechanism 5 is inserted in the water delivery base hole 6 covered with the unidirectional water seepage filtration layer group 7. The unidirectional water seepage filtering layer group 7 preferably at least comprises a water seepage base layer 8 and a reverse filtering layer 9, wherein the water seepage base layer 8 is fixedly connected to the inner wall of the water delivery base hole 6, the reverse filtering layer 9 is fixedly connected to the water seepage base layer 8, and the inner wall of the water delivery base hole 6 is formed by the reverse filtering layer. Correspondingly, the reverse water sealing and closing mechanism 5 at least comprises a guide water conveying pipe 10 and a water sealing and closing assembly 11, and the water sealing and closing assembly 11 is arranged at the open upper end of the guide water conveying pipe 10; in the working process, the open upper end of the water delivery base hole 6 is opened or closed under the cooperation of the water sealing closing component 11 and the water pressure at the inner side and the outer side of the impermeable layer 3 through the guide water delivery pipe 10 inserted in the water delivery base hole 6. At this time, the guiding water pipe 10 is preferably formed by a steel pipe, a plurality of water passing holes 12 are uniformly distributed on the side wall of the steel pipe, and the water sealing closing assembly 11 is arranged on the open upper end of the steel pipe. The water sealing closing assembly 11 preferably comprises a fixed head 13 and a sealing gasket 14, wherein the sealing gasket 14 is arranged on the open upper end of the steel pipe through the fixed head 13, the open upper end of the water delivery base hole 6 is opened or closed through the sealing gasket 14 under the cooperation of the groundwater pressure of the steel pipe and the water pressure of the basin, and the diameter of the sealing gasket 14 is at least twice larger than the inner diameter of the water delivery base hole 6 in order to improve the closing effect.
Of course, in order to furthest improve the effect of eliminating the jacking load of the underground water, the water delivery base holes 6 arranged on the basin bottom of the reservoir basin are multiple, and each water delivery base hole 6 is uniformly distributed in the basin bottom of the reservoir basin; the inner wall of each water delivery base hole 6 is covered with the one-way water seepage filter layer group 7, and each water delivery base hole 6 is internally and uniformly provided with one reverse water sealing closing mechanism 5. More specifically, when the sliding type one-way seepage and depressurization system is arranged at the basin bottom of the storage reservoir basin, the method is carried out according to the following steps,
A. a water delivery base hole 6 is arranged according to the water permeability of the stratum at the basin bottom of the water storage basin, and the water delivery base hole 6 is drilled;
B. after the water delivery base hole 6 is drilled, backfilling a water permeable base layer 8 and installing a reverse filtering bag 9 at the bottom and the periphery of the water delivery base hole 6;
C. placing a steel pipe provided with a water passing hole 12 into the water conveying base hole 6;
D. installing a sealing gasket 14 on the top of the steel pipe;
E. the sealing gasket 14 is tightly fixed with the steel pipe by the top fixing head 13, and water leakage is prevented;
F. and (5) repeating the steps A to E until the drilling, backfilling, steel pipe installation and sealing gasket 14 installation of all the water delivery base holes 6 are completed.
In summary, the technical scheme provided by the utility model is characterized in that,
1. the components are simple, the construction is convenient, the cost is low, and the jacking effect of underground water and the drainage of reservoir water can be effectively prevented;
2. can be used for different stratum conditions, such as bedrock, overburden and the like;
3. the device is self-adaptive to various different groundwater levels and water level working conditions in the warehouse, and is simple to operate.
By adopting the technical means, the underground water jacking effect of the full-reservoir basin seepage-proofing structure is eliminated through the unidirectional flow device which is automatically opened by water pressure difference; the underground water level control device can adapt to any water level change of underground water in and outside the warehouse, and can automatically realize water isolation and water permeation.
Example 1
The technical scheme provided by the utility model aims to utilize the water head difference generated by the change of the reservoir water level and the surrounding groundwater water level in the running process of the upper reservoir, and a set of device capable of realizing unidirectional flow of water flow is arranged at the bottom of the reservoir, when the groundwater water level is Yu Kuna water level, the device is automatically opened under the water pressure difference, the groundwater flow enters the basin, and the jacking effect of the groundwater is eliminated; when the groundwater level is lower than the water level in the warehouse, the device is automatically closed under the water pressure difference, and the warehouse water and the groundwater are isolated, so that the seepage prevention effect is realized. The method and the device for eliminating the jacking effect of the underground water of the seepage-proofing structure of the full basin in the patent are as follows: by means of the device capable of realizing one-way flow of water flow, the device can automatically realize one-way flow of water flow under the action of pressure difference between the water level in the reservoir and the water level of the groundwater, and the functions of eliminating the jacking of the groundwater, the extravasation of the reservoir water and the like are achieved. The specific implementation steps are as follows:
1, a unidirectional flow device is arranged at the bottom of the seepage-proofing structure of the full basin.
A. Firstly, determining the water permeability of stratum at the bottom of a basin, arranging and installing drilling holes, and drilling the drilling holes;
B. after the drilling is completed, backfilling permeable materials at the bottom and around the drilling and installing a reverse filtering bag;
C. further, placing a water permeable flower tube in the hole;
D. further, a sealing gasket is arranged at the top of the flower pipe;
E. furthermore, the sealing gasket and the flower pipe are tightly fixed by the top fixing head, and water leakage is prevented;
F. repeating the steps A-E, and installing the next device.
2, when the water level in the warehouse is higher than the water level of surrounding groundwater, the water pressure at the top of the warehouse basin is higher than the water pressure at the bottom, and the device is sealed under the downward water pressure and the dead weight effect, so that the aim of seepage prevention of the warehouse water is fulfilled.
And 3, when the water level in the warehouse is lower than the water level of surrounding groundwater, the water pressure at the top of the warehouse basin is lower than the water pressure at the bottom of the warehouse basin, and the device is opened under the upward water pressure action, so that groundwater outside the warehouse flows into the warehouse basin, and the effect of eliminating groundwater jacking is achieved.
And 4, repeating the steps 2 and 3, and entering the next reservoir water change cycle.
Claims (8)
1. A arrangement structure for eliminating whole storehouse basin seepage prevention structure groundwater jacking load, including catch basin (1), its characterized in that: the arrangement structure also comprises a sliding type unidirectional water seepage and depressurization system (2), an impermeable layer (3) is paved on the inner wall of the reservoir basin (1), pressurized water positioned on the inner side and the outer side of the impermeable layer (3) is unidirectional communicated towards the inner side of the reservoir basin (1) through the sliding type unidirectional water seepage and depressurization system (2),
wherein, the impermeable layer (3) is an asphalt concrete layer paved on the inner wall of the basin of the water storage reservoir.
2. The arrangement for eliminating groundwater jacking loads of a full basin seepage-proofing structure according to claim 1, characterized in that: the sliding type one-way water seepage and depressurization system (2) comprises a one-way filtration water seepage mechanism (4) and a reverse water sealing closing mechanism (5), wherein the one-way filtration water seepage mechanism (4) is embedded in the foundation of the basin bottom of the water storage basin, and the one-way filtration water seepage mechanism (4) is opened or closed towards a groundwater output port in the water storage basin (1) through the reverse water sealing closing mechanism (5) under the matching of the water pressure at the outer side in the seepage prevention layer.
3. The arrangement for eliminating groundwater jacking loads of a full basin seepage-proofing structure according to claim 2, characterized in that: the one-way filtration water seepage mechanism (4) comprises a water delivery base hole (6) and a one-way water seepage filtration layer group (7), wherein the water delivery base hole (6) is drilled in the base of the basin bottom of the water storage reservoir basin, the one-way water seepage filtration layer group (7) is covered on the inner wall of the water delivery base hole (6), and the reverse water sealing closing mechanism (5) is inserted in the water delivery base hole (6) covered with the one-way water seepage filtration layer group (7).
4. An arrangement for eliminating groundwater jacking loads for a full basin seepage-proofing structure according to claim 3, characterized in that: the one-way water seepage filtering layer group (7) at least comprises a water seepage base layer (8) and a reverse filtering cladding layer (9), wherein the water seepage base layer (8) is fixedly connected to the inner wall of the water delivery base hole (6), the reverse filtering cladding layer (9) is fixedly connected to the water seepage base layer (8), and the inner wall of the water delivery base hole (6) is formed by the reverse filtering cladding layer.
5. An arrangement for eliminating groundwater jacking loads for a full basin seepage-proofing structure according to claims 2, 3 or 4, characterized in that: the reverse water sealing and closing mechanism (5) at least comprises a guide water conveying pipe (10) and a water sealing and closing assembly (11), and the water sealing and closing assembly (11) is arranged at the open upper end of the guide water conveying pipe (10); in the working process, the open upper end of the water delivery base hole (6) is opened or closed under the cooperation of the water pressure at the inner side and the outer side of the sealing water closing component (11) and the impermeable layer (3) through a guide water delivery pipe (10) inserted in the water delivery base hole (6).
6. The arrangement for eliminating groundwater jacking loads of a full basin seepage-proofing structure according to claim 5, wherein: the guide water delivery pipe (10) is composed of a steel pipe, a plurality of water passing holes (12) are uniformly distributed on the side wall of the steel pipe, and the water sealing closing assembly (11) is arranged at the open upper end of the steel pipe.
7. The arrangement for eliminating groundwater jacking loads of a full basin seepage-proofing structure according to claim 6, characterized in that: the water sealing closing component (11) comprises a fixed head (13) and a sealing gasket (14), the sealing gasket (14) is arranged on the open upper end of the steel pipe through the fixed head (13), the open upper end of the water delivery base hole (6) is opened or closed through the sealing gasket (14) under the cooperation of the underground water pressure of the steel pipe and the water pressure of the basin,
wherein the diameter of the sealing gasket (14) is at least one time larger than the inner diameter of the water delivery base hole (6).
8. The arrangement for eliminating groundwater jacking loads of a full basin seepage-proofing structure according to claim 7, wherein: the plurality of water delivery base holes (6) are arranged on the basin bottom of the reservoir basin, and each water delivery base hole (6) is uniformly distributed in the basin bottom of the reservoir basin; the inner wall of each water delivery base hole (6) is covered with a one-way water seepage filter layer group (7), and each water delivery base hole (6) is internally and uniformly provided with a reverse water sealing closing mechanism (5).
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| CN202320801971.0U CN219710198U (en) | 2023-04-12 | 2023-04-12 | Arrangement structure for eliminating underground water jacking load of full-reservoir basin seepage-proofing structure |
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| CN202320801971.0U CN219710198U (en) | 2023-04-12 | 2023-04-12 | Arrangement structure for eliminating underground water jacking load of full-reservoir basin seepage-proofing structure |
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