CN211498742U - Composite geomembrane seepage-proofing structure - Google Patents
Composite geomembrane seepage-proofing structure Download PDFInfo
- Publication number
- CN211498742U CN211498742U CN201922055924.2U CN201922055924U CN211498742U CN 211498742 U CN211498742 U CN 211498742U CN 201922055924 U CN201922055924 U CN 201922055924U CN 211498742 U CN211498742 U CN 211498742U
- Authority
- CN
- China
- Prior art keywords
- geomembrane
- composite
- layer
- composite geomembrane
- seepage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 96
- 230000002265 prevention Effects 0.000 claims abstract description 14
- 239000004746 geotextile Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims description 13
- 239000010426 asphalt Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 45
- 238000009434 installation Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 238000009991 scouring Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000009172 bursting Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model belongs to the technical field of prevention of seepage engineering technique and specifically relates to a compound geomembrane seepage prevention structure is related to. The artificial lake comprises a tamping layer positioned at the bottom of an artificial lake, wherein a leveling layer, a composite geomembrane, a backfill layer, an anti-impact protection layer and a vegetation planting layer are sequentially arranged on the surface of the tamping layer from bottom to top; the composite geomembrane comprises geotextile and a geomembrane, wherein the geotextile is respectively compounded on two sides of the geomembrane. The utility model provides a pair of compound geomembrane seepage prevention structure improves the prevention of seepage effect, guarantees the stability of lakebed.
Description
Technical Field
The utility model belongs to the technical field of prevention of seepage engineering technique and specifically relates to a compound geomembrane seepage prevention structure is related to.
Background
In the garden engineering, the seepage prevention of the artificial lake is mostly realized by adopting a waterproof blanket, so that the soil layer below the lake bottom waterproof protective layer is prevented from being washed away by the lake water seepage, the lake bottom is prevented from sinking, and the growth of plants at the lake bottom is influenced. But the waterproof blanket has general defending effect and short protection period, and poses certain threat to the ecological stability of the artificial lake.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compound geomembrane seepage prevention structure improves the prevention of seepage effect, guarantees the stability at the bottom of a lake.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a composite geomembrane seepage-proofing structure comprises a tamping layer positioned at the bottom of an artificial lake, wherein a leveling layer, a composite geomembrane, a backfill layer, an anti-scouring protection layer and a vegetation planting layer are sequentially arranged on the surface of the tamping layer from bottom to top;
the composite geomembrane comprises geotextile and a geomembrane, wherein the geotextile is respectively compounded on two sides of the geomembrane.
By adopting the technical scheme, the foundation at the bottom of the artificial lake is tamped, the strength and the seepage-proofing performance of the foundation are improved, and the seepage-proofing structure at the upper part is supported; the sand or clay with smaller material diameter is used for leveling the base surface, so that the leveling of the installation surface of the composite geomembrane is ensured, the installation stability of the composite geomembrane is ensured, and the service life of the composite geomembrane is prolonged; the composite geomembrane comprises a geomembrane and geotextiles at two sides, wherein the geomembrane and the geomembrane are pressed together by a guide roller through far infrared heating of an oven at one side or two sides of the geomembrane to form the composite geomembrane, the composite geomembrane has high physical and mechanical property indexes such as tensile strength, tear resistance, bursting strength and the like, and the product has the characteristics of high strength, good extensibility, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good seepage resistance and the like; the backfill layer covers the composite geomembrane to protect the composite geomembrane from being influenced by external force and reduce the impact load of the anti-impact protection layer; the anti-scour protective layer is used for resisting the scouring of lake water and protecting the anti-seepage structure from being damaged; and finally, covering a vegetation planting layer on the surface of the anti-impact protection layer for planting aquatic plants, so as to improve the ecological diversity of the artificial lake.
The utility model discloses further set up to: a groove is formed in the bank of the artificial lake;
the end part of the composite geomembrane is laid in the groove in a corrugated shape, and pebbles are filled in the groove.
By adopting the technical scheme, the groove is dug on the bank of the artificial lake, the end part of the composite geomembrane is laid in the groove in a corrugated manner, pebbles are filled into the groove and pressed on the composite geomembrane, and the end part is fixed. Because the composite geomembrane is finally embedded into the soil and is easy to tighten under the action of external force, the end part is embedded in a corrugated shape, so that the composite geomembrane can be prevented from being tightened too tightly after construction is finished, and the composite geomembrane is prevented from breaking.
The utility model discloses further set up to: the leveling layer is composed of fine sand or clay.
By adopting the technical scheme, the material diameter of the fine sand or clay is smaller, the texture is softer, the filling performance is good, the surface of the rammed layer is filled flatly, the laying of the composite geomembrane is facilitated, and the service life is prolonged.
The utility model discloses further set up to: the anti-impact protection layer is composed of stone blocks or concrete prefabricated blocks.
By adopting the technical scheme, the block stone or concrete precast block is hard in texture, has good water flow scouring resistance, and can well protect the seepage-proofing structure from being washed down by lake water.
The utility model discloses further set up to: the composite geomembrane is fixed in the rammed layer through expansion bolts.
By adopting the technical scheme, the installation stability of the composite geomembrane is ensured.
The utility model discloses further set up to: and emulsified asphalt is lapped and bonded between the composite geomembranes.
By adopting the technical scheme, the emulsified asphalt has good cohesiveness, ageing resistance and waterproof capability, and the adjacent composite geomembranes are lapped and bonded with the emulsified asphalt, so that the waterproof performance and the sealing performance of the emulsified asphalt are ensured, and the seepage-proofing performance is further improved.
The utility model discloses further set up to: sealing agents are filled between the composite geomembranes and are connected with connecting pieces;
the connector is pressed against the sealant.
By adopting the technical scheme, when a gap is reserved between the adjacent composite geomembranes, the sealant can be filled into the gap to prevent the gap from leaking. The adjacent composite geomembranes are connected through the connecting piece and tightly pressed on the gap filled with the sealant, so that the service life of the sealant is prolonged.
The utility model discloses further set up to: the sealant is bentonite.
By adopting the technical scheme, the bentonite has strong hygroscopicity and expansibility, can absorb water with volume 8-15 times of that of the bentonite, has volume expansion reaching several times to 30 times, and fills gaps among the composite geomembranes.
To sum up, the utility model discloses a beneficial technological effect does:
1. tamping the foundation at the bottom of the artificial lake to improve the strength and the seepage-proofing performance of the foundation and further support the seepage-proofing structure at the upper part; the sand or clay with smaller material diameter is used for leveling the base surface, so that the leveling of the installation surface of the composite geomembrane is ensured, the installation stability of the composite geomembrane is ensured, and the service life of the composite geomembrane is prolonged; the composite geomembrane comprises a geomembrane and geotextiles at two sides, wherein the geomembrane and the geomembrane are pressed together by a guide roller through far infrared heating of an oven at one side or two sides of the geomembrane to form the composite geomembrane, the composite geomembrane has high physical and mechanical property indexes such as tensile strength, tear resistance, bursting strength and the like, and the product has the characteristics of high strength, good extensibility, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good seepage resistance and the like; the backfill layer covers the composite geomembrane to protect the composite geomembrane from being influenced by external force and reduce the impact load of the anti-impact protection layer; the anti-scour protective layer is used for resisting the scouring of lake water and protecting the anti-seepage structure from being damaged; and finally, covering a vegetation planting layer on the surface of the anti-impact protection layer for planting aquatic plants, so as to improve the ecological diversity of the artificial lake.
2. And excavating a groove on the bank of the artificial lake, paving the end part of the composite geomembrane in the groove in a corrugated manner, filling pebbles into the groove, pressing the pebbles on the composite geomembrane, and fixing the end part. Because the composite geomembrane is finally embedded into the soil and is easy to tighten under the action of external force, the end part is embedded in a corrugated shape, so that the composite geomembrane can be prevented from being tightened too tightly after construction is finished, and the composite geomembrane is prevented from breaking.
3. The composite geomembrane is fixed in the rammed layer through the expansion bolts, so that the installation stability of the composite geomembrane is ensured.
Drawings
Fig. 1 is a schematic structural view of a composite geomembrane seepage-proofing structure provided by the present invention;
fig. 2 is a schematic connection diagram of a composite geomembrane provided by the present invention;
fig. 3 is a schematic diagram of the overlapping of the composite geomembrane provided by the present invention.
In the figure, 101, the rammed layer; 102. leveling layer; 103. a backfill layer; 104. an anti-impact protective layer; 105. a vegetation planting layer; 106. an expansion bolt; 200. compounding the geomembrane; 201. geotextile; 202. a geomembrane; 301. a groove; 302. pebbles; 401. a sealant; 402. a connecting member; 501. and (4) emulsifying asphalt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a compound geomembrane seepage prevention structure improves the prevention of seepage effect, guarantees the stability of lakebed.
Referring to fig. 1 and 2, for the utility model discloses a composite geomembrane seepage prevention structure, including the tamping layer 101 that is located artifical lake bottom, tamp the foundation of artifical lake bottom, improve the intensity and the anti-seepage performance of foundation, and then support the seepage prevention structure on upper portion. The leveling layer 102 is laid on the rammed layer 101, the composite geomembrane 200 is laid on the leveling layer 102 and fixed on the surface of the rammed layer 101 through the expansion bolts 106, and the installation stability of the composite geomembrane 200 is ensured. The leveling layer 102 is made of fine sand or clay, is small in material diameter, soft in texture and good in filling performance, the surface of the rammed layer 101 is filled flatly, the flatness of the installation surface of the composite geomembrane 200 is guaranteed, the service life of the leveling layer is prolonged, the laying and attaching of the composite geomembrane 200 are facilitated, and the service life is prolonged.
Referring to fig. 2 and 3, the composite geomembrane 200 comprises a geotextile 201 and a geomembrane 202, one side or two sides of the geomembrane 202 are heated by a baking oven far infrared ray, the geotextile 201 and the geomembrane 202 are pressed together by guide rollers to form the composite geomembrane 200, the composite geomembrane 200 has high physical and mechanical property indexes such as tensile strength, tear resistance, bursting resistance and the like, and the product has the characteristics of high strength, better extensibility, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good seepage resistance and the like. The emulsified asphalt 501 is lapped and bonded between two adjacent composite geomembranes 200, and the emulsified asphalt 501 has good cohesiveness, ageing resistance and waterproof capability, so that the waterproof property and the sealing property of the emulsified asphalt are ensured, and the seepage-proofing performance is further improved. When a gap is left between the adjacent composite geomembranes 200, the sealant 401 may be filled into the gap to prevent the gap from leaking. The adjacent composite geomembranes 200 are connected by the connecting pieces 402 and tightly pressed on the gaps filled with the sealant 401, so that the service life of the sealant 401 is prolonged. The sealant 401 adopts bentonite which has strong hygroscopicity and expansibility and can absorb water with volume being 8-15 times of that of the sealant, the volume expansion can reach several times to 30 times, and gaps among the composite geomembranes 200 are filled.
Referring to fig. 1, the composite geomembrane 200 is covered with original soil as a backfill layer 103, and an anti-impact protection layer 104 composed of rock blocks or concrete precast blocks is laid on the surface of the backfill layer 103. The backfill layer 103 protects the composite geomembrane 200 from external force, and reduces the impact load of the anti-impact protection layer 104; the block stone or concrete precast block is hard in texture, has good water flow scouring resistance, and can well protect the seepage-proofing structure from being washed down by lake water. Finally, planting soil is backfilled on the surface of the anti-impact protection layer 104 to serve as a vegetation planting layer 105 for planting aquatic plants, and the ecological diversity of the artificial lake is improved.
Referring to fig. 1, a groove 301 is provided on the bank of the artificial lake, the end of the composite geomembrane 200 near the bank is laid in the groove 301 in a corrugated manner, and the composite geomembrane 200 is pressed in the groove 301 by pebbles 302 to fix the end. The composite geomembrane 200 is buried in the soil and is easy to tighten under the action of external force, and the end part is embedded in a corrugated shape, so that the composite geomembrane 200 can be prevented from being tightened too tightly after construction is finished, and the composite geomembrane is prevented from breaking.
The implementation principle of the embodiment is as follows: tamping the foundation at the bottom of the artificial lake to improve the strength and the seepage-proofing performance of the foundation and further support the seepage-proofing structure at the upper part; the sand or clay with smaller material diameter is used for leveling the base surface, so that the leveling of the installation surface of the composite geomembrane 200 is ensured, the installation stability of the composite geomembrane 200 is ensured, and the service life of the composite geomembrane is prolonged; the composite geomembrane 200 comprises a geomembrane 202 and geotextiles 201 on two sides, one side or two sides of the geomembrane 202 is heated by an oven through far infrared rays, the geotextile 201 and the geomembrane 202 are pressed together through guide rollers to form the composite geomembrane 200, the composite geomembrane 200 has high physical and mechanical property indexes such as tensile strength, tear resistance, bursting and the like, and the product has the characteristics of high strength, better extensibility, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good seepage resistance and the like; the backfill layer 103 covers the composite geomembrane 200 to protect the composite geomembrane 200 from external force and reduce the impact load of the anti-impact protection layer 104; the anti-scour protection layer 104 is used for resisting the scouring of lake water and protecting the anti-seepage structure from being damaged; finally, covering a vegetation planting layer 105 on the surface of the anti-impact protection layer 104 for planting aquatic plants to improve the ecological diversity of the artificial lake; a groove 301 is dug on the shore of the artificial lake, the end part of the composite geomembrane 200 is laid in the groove 301 in a corrugated manner, pebbles 302 are filled in the groove 301 and pressed on the composite geomembrane 200, and the end part is fixed. Because the composite geomembrane 200 is finally embedded into the soil and is easy to tighten under the action of external force, the end part is embedded in a corrugated shape, so that the composite geomembrane 200 can be prevented from being tightened too tightly after construction is finished, and the composite geomembrane is prevented from breaking; the composite geomembrane 200 is fixed in the rammed layer 101 through the expansion bolts 106, and the installation stability of the composite geomembrane 200 is ensured.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A composite geomembrane seepage prevention structure, comprising a rammed layer (101) located at the bottom of an artificial lake, characterized in that: the surface of the tamping layer (101) is sequentially provided with a leveling layer (102), a composite geomembrane (200), a backfill layer (103), an anti-impact protection layer (104) and a vegetation planting layer (105) from bottom to top;
the composite geomembrane (200) comprises a geotextile (201) and a geomembrane (202), wherein the geotextile (201) is respectively compounded on two sides of the geomembrane (202).
2. The composite geomembrane seepage control structure according to claim 1, wherein: a groove (301) is arranged on the bank side of the artificial lake;
the end part of the composite geomembrane (200) is laid in the groove (301) in a corrugated shape, and pebbles (302) are filled in the groove (301).
3. The composite geomembrane seepage control structure according to claim 1, wherein: the screed (102) is composed of fine sand or clay.
4. The composite geomembrane seepage control structure according to claim 1, wherein: the anti-impact protection layer (104) is composed of stone blocks or concrete prefabricated blocks.
5. The composite geomembrane seepage control structure according to claim 1, wherein: the composite geomembrane (200) is fixed in the rammed layer (101) through expansion bolts (106).
6. The composite geomembrane seepage control structure according to claim 1, wherein: and emulsified asphalt (501) is lapped and bonded between the composite geomembranes (200).
7. The composite geomembrane seepage control structure according to claim 1, wherein: a sealant (401) is filled between the composite geomembranes (200) and is connected with a connecting piece (402);
the connecting piece (402) is pressed against the sealing compound (401).
8. The composite geomembrane seepage control structure according to claim 7, wherein: the sealant (401) is bentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922055924.2U CN211498742U (en) | 2019-11-23 | 2019-11-23 | Composite geomembrane seepage-proofing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922055924.2U CN211498742U (en) | 2019-11-23 | 2019-11-23 | Composite geomembrane seepage-proofing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211498742U true CN211498742U (en) | 2020-09-15 |
Family
ID=72411201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922055924.2U Expired - Fee Related CN211498742U (en) | 2019-11-23 | 2019-11-23 | Composite geomembrane seepage-proofing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211498742U (en) |
-
2019
- 2019-11-23 CN CN201922055924.2U patent/CN211498742U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103643656B (en) | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body | |
| CN203411948U (en) | Green ecological riverway revetment structure | |
| CN104164851B (en) | The construction method of the ecological flexible mud-rock flow blocking dam of gabion arch | |
| US20090050025A1 (en) | Use of Encapsulated Water Soluble Material as a Construction Material | |
| CN109024487A (en) | A kind of guard system and its construction method that cold area's reservoir stability antiseepage is freeze proof | |
| CN106368238B (en) | A kind of honeycomb geotechnical grid retaining wall and its construction method with ecological recovery function | |
| CN105200881B (en) | The construction method of High-cold regions roadbed freeze-harm Comprehensive Treatment structure | |
| CN103696397B (en) | A kind of anti-seepage processing method of artificial dam | |
| CN105888697B (en) | A kind of Cross-fault leveling tunnel deformation cooperative type supporting construction and its construction method | |
| CN105804007A (en) | Reinforced soil bank wall structure based on beach soft foundation | |
| CN113266028B (en) | Construction method of sea area beach section highway riprap cofferdam seepage prevention system | |
| CN211498742U (en) | Composite geomembrane seepage-proofing structure | |
| CN114753313B (en) | Small-size reservoir dam body seepage prevention structure | |
| CN104099937B (en) | A kind of construction method that effectively can shorten high roadbed backfill region sedimentation period | |
| CN215441993U (en) | Concrete panel rock-fill dam soft foundation reinforcing structure | |
| CN115450236A (en) | Cofferdam anti-seepage structure and construction method thereof | |
| CN213061560U (en) | Road subgrade and pavement structure on flood control wall | |
| CN210031693U (en) | Trinity original ecology prevention of seepage system | |
| CN212223491U (en) | Face river roadbed structure | |
| CN210636386U (en) | Reservoir seepage prevention structure for dam face of rock-fill dam and backfill reservoir bottom of soil and stone materials | |
| CN210658236U (en) | Slag stacking structure | |
| CN204059287U (en) | A kind of earth and rockfill dam leakage preventing structure | |
| CN109826155B (en) | Karst geological river channel structure and construction method thereof | |
| CN103898824B (en) | The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board | |
| CN220352850U (en) | Side slope supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 |