CN220977892U - Novel full-reservoir seepage-proofing structure of pumped storage reservoir - Google Patents
Novel full-reservoir seepage-proofing structure of pumped storage reservoir Download PDFInfo
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- CN220977892U CN220977892U CN202322496957.7U CN202322496957U CN220977892U CN 220977892 U CN220977892 U CN 220977892U CN 202322496957 U CN202322496957 U CN 202322496957U CN 220977892 U CN220977892 U CN 220977892U
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Abstract
The application provides a novel full-reservoir seepage-proofing structure of a pumped storage reservoir, which relates to the technical field of reservoir waterproofing and comprises a fine sand layer and a caulking waterproof structure; the fine sand layer is paved between the reinforced concrete toe board and the first spray quick setting rubber asphalt waterproof coating impermeable layer; the caulking waterproof structure comprises a caulking adhesive layer, a polyethylene foam rod, a water stopping groove and a waterproof plate; the both sides of the separation gap of reinforced concrete toe board set up the water-stop tank, the polyethylene foam stick is placed at the middle part of separating the gap, and the caulking glue film is filled in separating the gap, and the waterproof board is fixed in the water-stop tank, and second spraying quick setting rubber asphalt waterproof coating barrier covers caulking waterproof construction, and this scheme can play the effect of effectively protecting quick setting rubber asphalt waterproof coating barrier, ensures the full storehouse barrier property of reservoir.
Description
Technical Field
The utility model relates to the technical field of reservoir waterproofing, in particular to a novel full reservoir seepage-proofing structure of a pumped storage reservoir.
Background
Along with the rapid development of the economic society of China, the number of hydraulic engineering is continuously increased, and the main functions of the hydraulic engineering in actual production and life comprise hydroelectric power generation, water storage and water storage, flood control and drought resistance and the like, and the engineering seepage prevention treatment is required to be performed on the premise of ensuring the hydraulic engineering to play its own role.
For example, the present inventors provide a novel pumped-storage power station reservoir total-reservoir anti-seepage system in which a geotechnical cloth layer is laid over a reservoir bank and a reservoir basin, a rapid-hardening rubber asphalt waterproof paint anti-seepage layer is sprayed over the geotechnical cloth layer, a reinforced concrete toe board is arranged over the rapid-hardening rubber asphalt waterproof paint anti-seepage layer, and the reinforced concrete toe board covers the reservoir bank and a transition region of the reservoir basin and the reservoir bank; the reinforced concrete toe board is sprayed with another impermeable layer of quick setting rubber asphalt waterproof paint, and the impermeable effect on the whole reservoir of the reservoir can be achieved by combining multiple layers of geotextiles and multiple layers of quick setting rubber asphalt waterproof paint impermeable layers.
However, in application practice, the applicant finds that when the concrete reinforced concrete toe board is constructed on the sprayed quick setting rubber asphalt waterproof coating impermeable layer, binding steel bars can cause the condition of puncture damage to the sprayed quick setting rubber asphalt waterproof coating impermeable layer, meanwhile, the separation joint between the concrete reinforced concrete toe boards is sealed only by filling caulking glue, the caulking glue is extruded and protruded during expansion, the extrusion of another quick setting rubber asphalt waterproof coating impermeable layer above the concrete reinforced concrete toe board is caused at the separation joint, the condition of local damage is easily caused, and the waterproof effect is influenced.
Disclosure of utility model
The utility model aims to provide a novel pumped storage reservoir full-reservoir seepage-proofing structure, which is used for solving the technical problems that binding steel bars in the prior art can cause puncture damage to a quick-setting rubber asphalt waterproof coating seepage-proofing layer and the quick-setting rubber asphalt waterproof coating seepage-proofing layer at a separation joint of a concrete reinforced concrete toe board is easy to deform and damage.
In order to achieve the above object, the present application provides the following aspects;
The application provides a novel pumped storage reservoir full-reservoir seepage-proofing structure, which comprises a reservoir basin, reservoir banks and a seepage-proofing structure; the seepage-proofing structure is arranged on the reservoir bank and the reservoir basin; the impermeable structure comprises: geotechnical cloth layer, first spray quick setting rubber asphalt waterproof paint impermeable layer, reinforced concrete toe board and cover weight layer; the geotechnical cloth layer is paved above the reservoir bank and the reservoir basin, the first spray quick setting rubber asphalt waterproof coating impermeable layer is sprayed above the geotechnical cloth layer, the reinforced concrete toe board is arranged above the first spray quick setting rubber asphalt waterproof coating impermeable layer, and the reinforced concrete toe board covers the reservoir bank and the transition area between the reservoir basin and the reservoir bank; a second spraying quick setting rubber asphalt waterproof coating impermeable layer is sprayed above the reinforced concrete toe boards, another geotechnical cloth layer is paved on the second spraying quick setting rubber asphalt waterproof coating impermeable layer above the reinforced concrete toe boards in the transition area of the reservoir basin and the reservoir bank, and the cover weight layer is covered above the other geotechnical cloth layer;
the waterproof structure also comprises a fine sand layer and a caulking waterproof structure;
The fine sand layer is paved between the reinforced concrete toe board and the first spray quick setting rubber asphalt waterproof coating impermeable layer;
The caulking waterproof structure comprises a caulking adhesive layer, a polyethylene foam rod, a water stopping groove and a waterproof plate;
The two sides of the separation gap of the reinforced concrete toe board are provided with the water stopping grooves, the polyethylene foam rod is placed in the middle of the separation gap, the caulking adhesive layer is filled in the separation gap, the waterproof board is fixed in the water stopping grooves, and the second spraying quick setting rubber asphalt waterproof coating impermeable layer covers the caulking waterproof structure.
Further, the thickness of the waterproof plate is matched with the depth of the water stopping groove.
Further, the cover layer is formed by covering the stone slag fly ash, and the cover layer is positioned in a transition area between the reservoir bank and the reservoir basin.
Further, a fine stone concrete protective layer is poured above the first spray quick setting rubber asphalt waterproof coating impermeable layer on the reservoir basin, and the fine stone concrete protective layer is located in the area between the reinforced concrete toe boards.
Further, the reservoir bank comprises a base layer, a cushion layer area and a transition layer;
The foundation layer is positioned below the geotechnical cloth layer on the reservoir bank;
The cushion layer area is paved below the foundation layer and is paved by stone blocks with the maximum outer diameter less than or equal to 80 mm;
the transition layer is paved below the cushion region and is formed by paving stone blocks with the maximum outer diameter less than or equal to 300 mm.
Further, the reservoir bank is divided into a main rock-fill area bank or a mountain rock mass area bank according to the construction position topography;
The main rock-fill area reservoir bank is built at a position with flat terrain, the base layer of the main rock-fill area reservoir bank is a rock-fill layer, the rock-fill layer is formed by stacking stone blocks with the maximum outer diameter less than or equal to 800mm, and the transition layer is positioned above the rock-fill layer.
Further, the mountain rock mass region reservoir bank is built on the side face of the mountain, a concrete layer, a sand layer and a gravel layer are sequentially paved on the side wall of the mountain from bottom to top, and the transition layer is located above the gravel layer.
Further, a grouting curtain is arranged at the bottom of the warehouse basin, and the grouting curtain is formed by punching holes around the warehouse basin for grouting.
By adopting the technical scheme, the novel full-reservoir seepage-proofing structure of the pumped storage reservoir has the following technical effects compared with the prior art:
1. The fine sand layer is paved between the reinforced concrete toe board and the first spray quick setting rubber asphalt waterproof coating impermeable layer; the reinforced concrete toe board of the reinforced concrete structure is poured on the fine sand layer, so that the fine sand layer and the reinforced concrete structure layer are fused into an integral structure, and as the fine sand layer is paved on the first spraying quick setting rubber asphalt waterproof coating impermeable layer, the fine sand layer can be fused with concrete into a whole when concrete is poured later, and becomes a part of the concrete poured later, the bonding performance of the first spraying quick setting rubber asphalt waterproof coating impermeable layer and the concrete poured later cannot be affected, the fine sand can isolate the bound steel bars from contacting with the first spraying quick setting rubber asphalt waterproof coating impermeable layer, and the steel bars are prevented from damaging and pressing the first spraying quick setting rubber asphalt waterproof coating impermeable layer, so that an effective protection effect is achieved;
2. the caulking waterproof structure comprises a caulking adhesive layer, a polyethylene foam rod, a water stopping groove and a waterproof plate; the two sides of the separation gap of the reinforced concrete toe board are provided with water stopping grooves, the polyethylene foam rod is placed in the middle of the separation gap, the caulking adhesive layer is filled in the separation gap, the waterproof board is fixed in the water stopping grooves, and due to the fact that the waterproof board is matched with the structure of the water stopping grooves, the width of the separation gap is increased, and then the problem that waterproof failure is easily caused by the fact that the caulking adhesive directly extrudes the second spraying quick setting rubber asphalt waterproof coating impermeable layer in the prior art is effectively relieved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a novel pumped storage reservoir full reservoir seepage prevention structure provided by an embodiment of the application;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
fig. 3 is an enlarged schematic view at B in fig. 1.
Icon: 11-fine stone concrete protective layer, 12-grouting curtain, 23-foundation layer, 24-bedding area, 25-transition layer, 26-stacking layer, 27-concrete layer, 28-sand layer, 29-crushed stone layer, 31-geotechnical cloth layer, 32-first spraying quick setting rubber asphalt waterproof paint impermeable layer, 33-reinforced concrete toe board, 34-second spraying quick setting rubber asphalt waterproof paint impermeable layer, 35-another geotechnical cloth layer and 36-cover weight layer;
41-fine sand layers, 42-caulking waterproof structures, 421-caulking adhesive layers, 422-polyethylene foam rods, 423-water stopping grooves and 424-waterproof plates.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Firstly, it should be noted that the novel pumped storage reservoir full-reservoir seepage-proofing structure provided in the technical scheme of the application is an improvement made on the basis of the structure of the novel pumped storage power station upper reservoir full-reservoir seepage-proofing system disclosed in the patent application with the publication number of CN115538382A, and is used for solving the defect that the full-reservoir seepage-proofing system in the prior art is poor in local waterproof performance.
As shown in fig. 1, 2 and 3, the novel full-reservoir seepage-proofing structure of the pumped storage reservoir comprises: the reservoir basin, reservoir bank and seepage-proofing structure;
The seepage-proofing structure is arranged on the reservoir bank and the reservoir basin and is used for keeping the comprehensive seepage-proofing effect on the reservoir bank and the reservoir basin;
The seepage-proofing structure comprises: a geotextile layer 31, a first spray-on quick setting rubberized asphalt waterproof paint impermeable layer 32, a reinforced concrete toe board 33, another geotextile layer 35 and a cover weight layer 36;
The geotechnical cloth layer 31 is paved above the reservoir bank and the reservoir basin, a first spraying quick setting rubber asphalt waterproof paint impermeable layer 32 is sprayed above the geotechnical cloth layer 31, the reinforced concrete toe board 33 is made of reinforced concrete, the reinforced concrete toe board 33 is arranged above the first spraying quick setting rubber asphalt waterproof paint impermeable layer 32, and the reinforced concrete toe board 33 covers the reservoir bank and the transition area between the reservoir basin and the reservoir bank;
A second sprayed quick setting rubber asphalt waterproof paint impermeable layer 34 is sprayed on the reinforced concrete toe board 33, another geotechnical cloth layer 35 is paved on the second sprayed quick setting rubber asphalt waterproof paint impermeable layer 34 positioned on the reinforced concrete toe board 33 in the transition area of the basin and the reservoir bank, and a cover weight layer 36 is covered on the other geotechnical cloth layer 35.
The novel pumped storage reservoir full-reservoir seepage-proofing structure also comprises a fine sand layer 41 and a caulking waterproof structure 42;
a fine sand layer 41 is laid between the reinforced concrete toe board 33 and the first spray quick setting rubber asphalt waterproof paint impermeable layer 32;
the caulking waterproof structure 42 includes a caulking adhesive layer 421, a polyethylene foam rod 422, a water stopping groove 423, and a waterproof plate 424;
The two sides of the separation gap of the reinforced concrete toe board 33 are provided with water stopping grooves 423, a polyethylene foam rod 422 is placed in the middle of the separation gap, a caulking compound layer 421 is filled in the separation gap, a waterproof board 424 is fixed in the water stopping grooves, and a second spraying quick setting rubber asphalt waterproof paint impermeable layer 34 covers the caulking waterproof structure 42.
In the embodiment, the fine sand layer is paved between the reinforced concrete toe board and the first spray quick setting rubber asphalt waterproof coating impermeable layer; the reinforced concrete toe board of the reinforced concrete structure is poured on the fine sand layer, so that the fine sand layer and the reinforced concrete structure layer are fused into an integral structure, and as the fine sand layer is paved on the first spraying quick setting rubber asphalt waterproof coating impermeable layer, the fine sand layer can be fused with concrete into a whole when concrete is poured later, and becomes a part of the concrete poured later, the bonding performance of the first spraying quick setting rubber asphalt waterproof coating impermeable layer and the concrete poured later cannot be affected, the fine sand can isolate the bound steel bars from contacting with the first spraying quick setting rubber asphalt waterproof coating impermeable layer, and the steel bars are prevented from damaging and pressing the first spraying quick setting rubber asphalt waterproof coating impermeable layer, so that an effective protection effect is achieved;
The caulking waterproof structure comprises a caulking adhesive layer, a polyethylene foam rod, a water stopping groove and a waterproof plate; the two sides of the separation gap of the reinforced concrete toe board are provided with water stopping grooves, the polyethylene foam rod is placed in the middle of the separation gap, the caulking adhesive layer is filled in the separation gap, the waterproof board is fixed in the water stopping grooves, and due to the fact that the waterproof board is matched with the structure of the water stopping grooves, the width of the separation gap is increased, and then the problem that waterproof failure is easily caused by the fact that the caulking adhesive directly extrudes the second spraying quick setting rubber asphalt waterproof coating impermeable layer in the prior art is effectively relieved.
In the technical scheme of the application, the first spray quick-setting rubber asphalt waterproof coating impervious layer and the second spray quick-setting rubber asphalt waterproof coating impervious layer can adopt one spray quick-setting rubber asphalt waterproof coating provided in CN201711183382.6, and more specifically, the coating comprises a component A and a component B;
Wherein the A component comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by reacting polymer latex containing carboxyl and cross-linking agent capable of reacting with carboxyl, and the B component comprises coagulant.
Preferably, in the component A, the weight part of the anionic emulsified asphalt is 30-90, and the weight part of the modified polymer latex is 10.1-90; 10.1 to 90 parts by weight of modified polymer latex, 10 to 70 parts by weight of polymer latex containing carboxyl, and 0.1 to 20 parts by weight of crosslinking agent.
The waterproof paint finishing coat can realize the problem of no lap joint, and solves the water channeling risk caused by lap joint; perfect cladding solves the waterproof problem of the special-shaped structure; in response to the naturally exposed harsh environment, the product has ultra-wide high-temperature resistance, low-temperature resistance and ozone aging resistance; the anti-fatigue adhesive has the advantages of being capable of coping with fatigue deformation, having exponential super-strong anti-cracking fatigue resistance and having good adhesive property with a construction base surface.
In the specific technical scheme of the embodiment, a fine stone concrete protection layer 11 is poured above the first spray quick setting rubber asphalt waterproof paint impermeable layer 32 located in the basin area, and the fine stone concrete protection layer 11 is located in the area between the reinforced concrete toe boards 33.
The fine stone concrete protective layer 11 plays a role in protecting the first spraying quick setting rubber asphalt waterproof coating impermeable layer 32 and the geotechnical cloth layer 31 of the basin, so that an excellent impermeable effect is guaranteed.
In a specific technical scheme of the embodiment of the invention, the reservoir bank comprises a base layer 23, a cushion layer area 24 and a transition layer 25;
The foundation layer 23 is formed by rolling a layer of asphalt and a layer of sand, then paving a layer of asphalt and a layer of sand again, and paving the foundation layer 23 below the geotechnical cloth layer 31 on the reservoir bank;
The cushion layer area 24 is paved below the foundation layer 23, and the cushion layer area 24 is paved by stone blocks with the maximum outer diameter less than or equal to 80 mm;
The transition layer 25 is laid below the cushion region 24, and the transition layer 25 is formed by laying stone blocks with the maximum outer diameter of 300mm or less.
The pad region 24 has poor adhesion and risks slipping off. The outer diameter of the stone used for the transition layer 25 is larger than that of the stone used for the bedding area 24, so that the bedding area 24 can be firmly attached, and the reservoir bank can be more firmly attached.
In the specific technical scheme of the embodiment, as shown in fig. 1, reservoir banks can be divided into main rock-fill area banks or mountain rock mass area banks according to different construction site terrains;
The main rock-fill area reservoir bank is built at a position with flat terrain, the base layer of the main rock-fill area reservoir bank is a rock-fill layer 26, and the rock-fill layer 26 is formed by stacking stone blocks with the maximum outer diameter less than or equal to 800 mm.
The rock-fill layer 26 is a main rock-fill area of a bank, and mainly bears relatively large-sized stones with water-retaining pressure and thrust, and also contains partial fine materials, so that the rock-fill layer 26 is compacted. The mound layer 26 makes the reservoir bank more secure.
In the specific technical scheme of the embodiment, the mountain rock mass region bank is built on the side face of the mountain, and the concrete layer 27, the sand layer 28 and the crushed stone layer 29 are sequentially paved on the side wall of the mountain.
The concrete layer 27 has the reinforcement effect on the surface of the mountain rock mass, prevents broken stone from falling off on the surface of the mountain rock mass, influences the safety of the reservoir bank of the mountain rock mass area, and the sand layer 28 and the broken stone layer 29 serve as base layers of the reservoir bank of the mountain rock mass area, play an isolating role on the mountain, and simultaneously increase the adhesiveness of the mountain to the transition layer 25, so that the reservoir bank of the mountain rock mass area is firmer.
In the specific technical scheme of the embodiment, the reservoir basin is provided with a grouting curtain 12, and the grouting curtain 12 is formed by punching and grouting around the bottom of the reservoir basin.
Grouting curtain 12 is a curtain that is formed by grouting slurry into the fissures, voids, of the rock or earth layer, to form a continuous water-blocking curtain.
Specifically, the borehole grouting of the grouting curtain 12 is gradually encrypted in the order of design. Two or more rows of hole curtains are drilled and irrigated for the downstream row, then for the upstream row, and finally for the middle row. Has the functions of reducing seepage flow and osmotic pressure.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (8)
1. A novel full-reservoir seepage-proofing structure of a pumped storage reservoir, which comprises; the reservoir basin, reservoir bank and seepage-proofing structure; the seepage-proofing structure is arranged on the reservoir bank and the reservoir basin; the impermeable structure comprises: geotechnical cloth layer, first spray quick setting rubber asphalt waterproof paint impermeable layer, reinforced concrete toe board and cover weight layer; the geotechnical cloth layer is paved above the reservoir bank and the reservoir basin, the first spray quick setting rubber asphalt waterproof coating impermeable layer is sprayed above the geotechnical cloth layer, the reinforced concrete toe board is arranged above the first spray quick setting rubber asphalt waterproof coating impermeable layer, and the reinforced concrete toe board covers the reservoir bank and the transition area between the reservoir basin and the reservoir bank; a second spraying quick setting rubber asphalt waterproof coating impermeable layer is sprayed above the reinforced concrete toe boards, another geotechnical cloth layer is paved on the second spraying quick setting rubber asphalt waterproof coating impermeable layer above the reinforced concrete toe boards in the transition area of the reservoir basin and the reservoir bank, and the cover weight layer is covered above the other geotechnical cloth layer;
the waterproof device is characterized by further comprising a fine sand layer and a caulking waterproof structure;
The fine sand layer is paved between the reinforced concrete toe board and the first spray quick setting rubber asphalt waterproof coating impermeable layer;
The caulking waterproof structure comprises a caulking adhesive layer, a polyethylene foam rod, a water stopping groove and a waterproof plate;
The two sides of the separation gap of the reinforced concrete toe board are provided with the water stopping grooves, the polyethylene foam rod is placed in the middle of the separation gap, the caulking adhesive layer is filled in the separation gap, the waterproof board is fixed in the water stopping grooves, and the second spraying quick setting rubber asphalt waterproof coating impermeable layer covers the caulking waterproof structure.
2. The novel pumped-storage reservoir full reservoir seepage prevention structure according to claim 1, wherein the thickness of the waterproof plate is matched with the depth of the water stopping groove.
3. The novel pumped-storage reservoir full reservoir permeation prevention structure according to claim 1, wherein the cover layer is formed by covering stone slag fly ash, and the cover layer is positioned in a transition area between the reservoir bank and the reservoir basin.
4. The novel pumped-storage reservoir total storage impermeable structure of claim 1, wherein a fine stone concrete protective layer is poured above the first sprayed quick-setting rubber asphalt waterproof coating impermeable layer on the storage basin, and the fine stone concrete protective layer is located in an area between the reinforced concrete toe plates.
5. The novel pumped-storage reservoir full reservoir seepage prevention structure according to claim 1, wherein the reservoir bank comprises a base layer, a cushion layer area and a transition layer;
The foundation layer is positioned below the geotechnical cloth layer on the reservoir bank;
The cushion layer area is paved below the foundation layer and is paved by stone blocks with the maximum outer diameter less than or equal to 80 mm;
the transition layer is paved below the cushion region and is formed by paving stone blocks with the maximum outer diameter less than or equal to 300 mm.
6. The novel pumped-storage reservoir full reservoir seepage prevention structure according to claim 5, wherein reservoir banks are divided into main rock-fill area banks or mountain rock mass area banks according to construction site terrains;
The main rock-fill area reservoir bank is built at a position with flat terrain, the base layer of the main rock-fill area reservoir bank is a rock-fill layer, the rock-fill layer is formed by stacking stone blocks with the maximum outer diameter less than or equal to 800mm, and the transition layer is positioned above the rock-fill layer.
7. The novel pumped-storage reservoir full reservoir seepage prevention structure according to claim 6, wherein the mountain rock mass region reservoir bank is built on the side face of the mountain, a concrete layer, a sand layer and a gravel layer are sequentially laid on the side wall of the mountain from bottom to top, and the transition layer is located above the gravel layer.
8. The novel pumped storage reservoir full reservoir seepage prevention structure according to claim 1, wherein a grouting curtain is arranged at the bottom of the reservoir basin, and the grouting curtain is formed by punching holes around the reservoir basin for grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322496957.7U CN220977892U (en) | 2023-09-14 | 2023-09-14 | Novel full-reservoir seepage-proofing structure of pumped storage reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322496957.7U CN220977892U (en) | 2023-09-14 | 2023-09-14 | Novel full-reservoir seepage-proofing structure of pumped storage reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220977892U true CN220977892U (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322496957.7U Active CN220977892U (en) | 2023-09-14 | 2023-09-14 | Novel full-reservoir seepage-proofing structure of pumped storage reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220977892U (en) |
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2023
- 2023-09-14 CN CN202322496957.7U patent/CN220977892U/en active Active
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