CN110965524A - Reservoir seepage-proofing material and construction method - Google Patents
Reservoir seepage-proofing material and construction method Download PDFInfo
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- CN110965524A CN110965524A CN201911110572.4A CN201911110572A CN110965524A CN 110965524 A CN110965524 A CN 110965524A CN 201911110572 A CN201911110572 A CN 201911110572A CN 110965524 A CN110965524 A CN 110965524A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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Abstract
The embodiment of the invention provides a reservoir impermeable material and a construction method, the reservoir impermeable material is firstly paved at the bottom layer through a framework layer, a residual slope powdery clay layer is paved on the framework layer, a better impermeable effect can be ensured, meanwhile, the function of adapting to the local conditions is realized, a structural supporting layer is paved on the residual slope powdery clay layer, a filler can be tightly fixed in the structural supporting layer, and finally, the impermeable layer is covered, and the synergistic effect is generated through reasonable thickness and material cooperation among layers, so that the reservoir impermeable material with good impermeable effect and long service life is formed. The construction method is simple and easy to implement.
Description
Technical Field
The invention belongs to the technical field of reservoir seepage prevention, and particularly relates to a reservoir seepage prevention material and a construction method thereof.
Background
The reasonable allocation of the reservoir to water resources has great influence on industry, agriculture and life, and meanwhile, the reservoir also bears the great responsibility of preventing flood disasters.
How to utilize abundant water resources is directly related to the smooth development of economy. As a hydraulic engineering, solving the seepage-proofing problem is not only a problem faced by the hydraulic engineering under construction, but also very key to the established reservoir with seepage patients.
With the increase of service life, the reservoir has the problems of reduced flood control standard, overlarge deformation, serious leakage, dam body cracks, landslides, biological caves, rotten tree pits, piping, soil flowing and the like, and becomes a reservoir with diseases, the diseases can cause the reservoir to leak, the reservoir cannot store water according to the designed water level, the reservoir cannot normally operate, the benefits are difficult to develop, and simultaneously, the resource waste and the economic loss are caused.
In the prior art, the seepage-proofing layer structure of the dam body mainly comprises clay, reinforced concrete, asphalt concrete and the like, and the seepage-proofing structure has the problems that the seepage-proofing structure is difficult to adapt to the deformation of the dam body, cracks are easy to occur due to the deformation of the dam body, and the leakage is caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a reservoir impermeable material and a construction method thereof.
According to the reservoir impermeable material disclosed by the embodiment of the first aspect of the invention, the reservoir impermeable material has a good impermeable effect, and can effectively solve the problem of reservoir leakage caused by dam body cracks, landslides, biological caves, rotten tree pits, piping, soil erosion and the like.
According to the reservoir impermeable material disclosed by the embodiment of the first aspect of the invention, the reservoir impermeable material comprises a framework layer, a residual slope powder clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially laid from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powder clay layer to the structure supporting layer to the filler layer to the impermeable layer is (5-10): 2:2:1: 1.
The reservoir impermeable material provided by the embodiment of the invention at least has the following technical effects:
according to the reservoir seepage-proofing material, the bottom layer is paved through the framework layer, the residual slope powdery clay layer is paved on the framework layer, the effect according to local conditions can be achieved while the good seepage-proofing effect is guaranteed, the structural supporting layer is paved on the residual slope powdery clay layer, the filler can be tightly fixed in the structural supporting layer, the seepage-proofing layer is covered finally, the synergistic effect is generated through reasonable thickness and material matching between layers, and therefore the reservoir seepage-proofing material with the good seepage-proofing effect and long service life is formed.
According to some embodiments of the invention, the thickness of the skeleton layer is 2-5 mm.
The thickness ensures that the residual slope powder clay layer on the upper part can not puncture the framework layer to cause leakage.
According to some embodiments of the present invention, the carcass layer includes a first carcass layer and a second carcass layer, and a thickness ratio of the first carcass layer to the second carcass layer is (1-2): 1.
compared with a single-layer framework layer, the first framework layer and the second framework layer are designed, so that the service life of the anti-seepage material is further prolonged, and a double-insurance effect is achieved.
According to some embodiments of the invention, the first carcass layer is a fiberglass polyester geotextile layer.
The glass fiber polyester geotextile is a mixture of glass fibers and polyester, and combines the advantages of the glass fibers and the polyester fibers, namely the strength of the glass fibers and the flexibility of the polyester fibers. A structural layer formed after absorbing asphalt materials has the physical characteristics of water resistance, heat resistance and corrosion resistance, low expansion coefficient, good toughness, no long-term creep property and convenient construction, and the low-temperature crack resistance, the fatigue resistance and the anti-reflection performance of the structural layer are obviously improved after the structural layer is compounded with an asphalt mixture layer, so that the service life of a dam body is indirectly prolonged.
According to some embodiments of the invention, the second carcass layer is an epoxy resin layer.
According to some embodiments of the invention, the structural support layer comprises first, second and third support bars arranged in a cross formation, the second support bar being vertically arranged between the first and third support bars.
According to some embodiments of the invention, the second support bar is more rigid than the first and third support bars.
The three-dimensional structure of the structure supporting layer enables the structure supporting layer to have high compression resistance, so that the filler layer can be stably filled in the structure supporting layer, and the structure supporting layer can maintain high stability even under long-term high-pressure loading conditions.
According to some embodiments of the invention, the packing layer comprises at least one of an asphalt layer, a clay layer, and a gravel layer.
According to some embodiments of the invention, the barrier layer is a mixed bed of fully weathered slate and strongly weathered slate.
According to the construction method of the reservoir impermeable material disclosed by the embodiment of the second aspect of the invention, the construction method is simple in process and easy to construct.
The construction method of the reservoir impermeable material provided by the embodiment of the invention comprises the following steps:
s1: performing reservoir dam body filling construction, and after the reservoir dam body construction is completed, setting the surface of the upstream side of the reservoir dam body into a wave-shaped concave-convex structure, wherein the wave-shaped concave-convex structure extends from the bottom to the top of the surface of the upstream side of the reservoir dam body;
s2: sequentially paving a framework layer, a residual slope silty clay layer, a structure supporting layer and a filler layer on the surface of the wavy concave-convex structure;
s3: and after the packing layer is flattened, paving an impermeable layer on the surface of the packing layer.
Drawings
Fig. 1 is a schematic structural diagram of a structural support layer according to an embodiment of the invention.
FIG. 2 is a schematic structural view of a support layer of a comparative example structure of the present invention.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention will be further described with reference to the examples, but the present invention is not limited to the examples.
Example 1
The embodiment provides a reservoir impermeable material, which comprises a framework layer, a residual slope powdery clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powdery clay layer to the structure supporting layer to the filler layer to the impermeable layer is 5:2:2:1: 1.
The thickness of the skeleton layer was 2 mm. The skeleton layer includes a first skeleton layer and a second skeleton layer, and the thickness ratio of the first skeleton layer to the second skeleton layer is 1: 1.
the first framework layer is a glass fiber polyester geotextile layer. The second framework layer is an epoxy resin layer.
As shown in fig. 1, the structural support layer includes first support bars 10, second support bars 20, and third support bars 30, the first support bars 10 and the third support bars 30 are arranged in a cross form, and the second support bars 20 are vertically arranged between the first support bars 10 and the third support bars 30. The second support bar 20 is more rigid than the first and third support bars 10 and 30.
The filler layer is an asphalt layer.
The impervious layer is a mixed material layer of the fully weathered slate and the strongly weathered slate, and the mixing ratio is 1: 1.
Example 2
The embodiment provides a reservoir impermeable material, which comprises a framework layer, a residual slope powdery clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powdery clay layer to the structure supporting layer to the filler layer to the impermeable layer is 7:2:2:1: 1.
The thickness of the skeleton layer was 3 mm. The skeleton layer includes a first skeleton layer and a second skeleton layer, and the thickness ratio of the first skeleton layer to the second skeleton layer is 1.5: 1.
the first framework layer is a glass fiber polyester geotextile layer. The second framework layer is an epoxy resin layer.
As shown in fig. 1, the structural support layer includes first support bars 10, second support bars 20, and third support bars 30, the first support bars 10 and the third support bars 30 are arranged in a cross form, and the second support bars 20 are vertically arranged between the first support bars 10 and the third support bars 30. The second support bar 20 is more rigid than the first and third support bars 10 and 30.
The packing layer comprises at least one of an asphalt layer, a clay layer and a gravel soil layer.
The impervious layer is a mixed material layer of the fully weathered slate and the strongly weathered slate, and the mixing ratio is 1: 1.
Example 3
The embodiment provides a reservoir impermeable material, which comprises a framework layer, a residual slope powdery clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powdery clay layer to the structure supporting layer to the filler layer to the impermeable layer is 10:2:2:1: 1.
The thickness of the skeleton layer is 5 mm. The carcass layer includes a first carcass layer and a second carcass layer, and the thickness ratio of the first carcass layer to the second carcass layer is 2: 1.
the first framework layer is a glass fiber polyester geotextile layer. The second framework layer is an epoxy resin layer.
As shown in fig. 1, the structural support layer includes first support bars 10, second support bars 20, and third support bars 30, the first support bars 10 and the third support bars 30 are arranged in a cross form, and the second support bars 20 are vertically arranged between the first support bars 10 and the third support bars 30. The second support bar 20 is more rigid than the first and third support bars 10 and 30.
The impervious layer is a mixed material layer of the fully weathered slate and the strongly weathered slate, and the mixing ratio is 1: 1.
Example 4
The embodiment provides a construction method of a reservoir impermeable material, which comprises the following steps:
s1: performing reservoir dam body filling construction, and after the reservoir dam body construction is completed, setting the surface of the upstream side of the reservoir dam body into a wave-shaped concave-convex structure, wherein the wave-shaped concave-convex structure extends from the bottom to the top of the surface of the upstream side of the reservoir dam body;
s2: sequentially paving a framework layer, a residual slope silty clay layer, a structure supporting layer and a filler layer on the surface of the wavy concave-convex structure;
s3: and after the packing layer is flattened, paving an impermeable layer on the surface of the packing layer.
Comparative example 1
The embodiment provides a reservoir impermeable material, which comprises a framework layer, a residual slope powdery clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powdery clay layer to the structure supporting layer to the filler layer to the impermeable layer is 10:2:2:1: 1.
The thickness of the skeleton layer is 5 mm. The carcass layer includes a first carcass layer and a second carcass layer, and the thickness ratio of the first carcass layer to the second carcass layer is 2: 1.
the first framework layer is a glass fiber polyester geotextile layer. The second framework layer is an epoxy resin layer.
As shown in fig. 2, the structural support layer includes only the first and third support bars 10 and 30, which are arranged in a cross form of the first and third support bars 10 and 30.
The impervious layer is a mixed material layer of the fully weathered slate and the strongly weathered slate, and the mixing ratio is 1: 1.
Comparative example 2
The embodiment provides a reservoir impermeable material, which comprises a framework layer, a residual slope powdery clay layer, a structure supporting layer, a filler layer and an impermeable layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powdery clay layer to the structure supporting layer to the filler layer to the impermeable layer is 10:2:2:1: 1.
The thickness of the skeleton layer is 5 mm. The carcass layer includes a first carcass layer and a second carcass layer, and the thickness ratio of the first carcass layer to the second carcass layer is 2: 1.
the first framework layer is a glass fiber polyester geotextile layer. The second framework layer is an epoxy resin layer.
As shown in fig. 1, the structural support layer includes first support bars 10, second support bars 20, and third support bars 30, the first support bars 10 and the third support bars 30 are arranged in a cross form, and the second support bars 20 are vertically arranged between the first support bars 10 and the third support bars 30. The second support bar 20 is more rigid than the first and third support bars 10 and 30. The impervious layer is a fully weathered slate layer.
Claims (10)
1. The reservoir seepage-proofing material is characterized by comprising a framework layer, a residual slope powder clay layer, a structure supporting layer, a filler layer and a seepage-proofing layer which are sequentially paved from bottom to top, wherein the thickness ratio of the framework layer to the residual slope powder clay layer to the structure supporting layer to the filler layer to the seepage-proofing layer is (5-10) to 2 to 1.
2. The reservoir impermeable material according to claim 1, wherein the thickness of the skeleton layer is 2-5 mm.
3. The reservoir impermeable material according to claim 1, wherein the skeleton layer comprises a first skeleton layer and a second skeleton layer, and the thickness ratio of the first skeleton layer to the second skeleton layer is (1-2): 1.
4. the reservoir barrier material of claim 3, wherein the first frame layer is a fiberglass polyester geotextile layer.
5. The reservoir barrier material of claim 3, wherein the second skeleton layer is an epoxy resin layer.
6. The impermeable material for reservoirs of claim 1, wherein the supporting structure comprises first supporting strips, second supporting strips and third supporting strips, the first supporting strips and the third supporting strips are arranged in a crossed manner, and the second supporting strips are vertically arranged between the first supporting strips and the third supporting strips.
7. The impermeable material for reservoirs of claim 6, wherein the second support strip is more rigid than the first and third support strips.
8. The reservoir barrier material of claim 1, wherein said filler layer comprises at least one of an asphalt layer, a clay layer, and a gravel layer.
9. The reservoir barrier material of claim 1, wherein the barrier layer is a mixed material layer of fully weathered slate and strongly weathered slate.
10. The construction method of the impermeable material for the reservoir according to any one of claims 1 to 9, characterized by comprising the steps of:
s1: performing reservoir dam body filling construction, and after the reservoir dam body construction is completed, setting the surface of the upstream side of the reservoir dam body into a wave-shaped concave-convex structure, wherein the wave-shaped concave-convex structure extends from the bottom to the top of the surface of the upstream side of the reservoir dam body;
s2: sequentially paving a framework layer, a residual slope silty clay layer, a structure supporting layer and a filler layer on the surface of the wavy concave-convex structure;
s3: and after the packing layer is flattened, paving an impermeable layer on the surface of the packing layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911110572.4A CN110965524A (en) | 2019-11-14 | 2019-11-14 | Reservoir seepage-proofing material and construction method |
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| CN201911110572.4A CN110965524A (en) | 2019-11-14 | 2019-11-14 | Reservoir seepage-proofing material and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775531A (en) * | 2022-05-06 | 2022-07-22 | 重庆交通大学 | Ecological seepage-proofing bank slope structure of upper reservoir of pumped storage power station and construction method thereof |
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| CN102155005A (en) * | 2011-03-16 | 2011-08-17 | 华北水利水电学院 | Steel structural panel sand gravel dam |
| CN106245590A (en) * | 2016-09-05 | 2016-12-21 | 中国电建集团成都勘测设计研究院有限公司 | Dam body seepage laminar composite, dam body seepage structure and construction method thereof |
| CN109371773A (en) * | 2018-12-03 | 2019-02-22 | 长沙建益新材料有限公司 | Anti-filter antiseepage overlay film drainage network and preparation method |
| FR3075232A1 (en) * | 2017-12-20 | 2019-06-21 | Societe Parisienne De Produits Et Materiaux | SEALING METHOD COMPRISING THE INSTALLATION OF A PARTICULAR DRAINAGE GEOCOMPOSITE AND THE PROJECTION OF A POLYMERIC RESIN |
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2019
- 2019-11-14 CN CN201911110572.4A patent/CN110965524A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155005A (en) * | 2011-03-16 | 2011-08-17 | 华北水利水电学院 | Steel structural panel sand gravel dam |
| CN106245590A (en) * | 2016-09-05 | 2016-12-21 | 中国电建集团成都勘测设计研究院有限公司 | Dam body seepage laminar composite, dam body seepage structure and construction method thereof |
| FR3075232A1 (en) * | 2017-12-20 | 2019-06-21 | Societe Parisienne De Produits Et Materiaux | SEALING METHOD COMPRISING THE INSTALLATION OF A PARTICULAR DRAINAGE GEOCOMPOSITE AND THE PROJECTION OF A POLYMERIC RESIN |
| CN109371773A (en) * | 2018-12-03 | 2019-02-22 | 长沙建益新材料有限公司 | Anti-filter antiseepage overlay film drainage network and preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775531A (en) * | 2022-05-06 | 2022-07-22 | 重庆交通大学 | Ecological seepage-proofing bank slope structure of upper reservoir of pumped storage power station and construction method thereof |
| CN114775531B (en) * | 2022-05-06 | 2024-05-03 | 重庆交通大学 | Ecological seepage-proof bank slope structure of upper reservoir of pumped storage power station and construction method thereof |
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