CN211690208U - Artificial lake seepage prevention structure - Google Patents

Artificial lake seepage prevention structure Download PDF

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Publication number
CN211690208U
CN211690208U CN201921864366.8U CN201921864366U CN211690208U CN 211690208 U CN211690208 U CN 211690208U CN 201921864366 U CN201921864366 U CN 201921864366U CN 211690208 U CN211690208 U CN 211690208U
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CN
China
Prior art keywords
seepage
layer
proofing
impermeable layer
soil
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Expired - Fee Related
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CN201921864366.8U
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Chinese (zh)
Inventor
于刘燕
孙晓
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Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower
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Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower
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Priority to CN201921864366.8U priority Critical patent/CN211690208U/en
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Publication of CN211690208U publication Critical patent/CN211690208U/en
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Abstract

The utility model relates to an artificial lake seepage prevention structure, the bottom of the artificial lake is laid with a GCL bentonite waterproof blanket, a composite geomembrane is laid on the GCL bentonite waterproof blanket, soil with the thickness of more than 500mm covers on the composite geomembrane, a reinforcing bar is arranged on the slope of the artificial lake, a seepage prevention layer is laid on the slope of the artificial lake, and the reinforcing bar penetrates out of the seepage prevention layer; the impermeable layer is a lime soil impermeable layer or a cement impermeable layer, the thickness of the impermeable layer is 400-600 mm, the impermeable layer is tamped in layers, each layer is 150-200mm, the degree of compaction is not less than 0.92, the top of the impermeable layer is 0.3-0.5 m higher than the water surface, and the slope gradient of the side slope is 1: 2.2-3. The utility model discloses the prevention of seepage is effectual, and the construction is simple and convenient.

Description

Artificial lake seepage prevention structure
Technical Field
The utility model relates to a hydraulic engineering technical field, concretely relates to artifical lake seepage prevention structure.
Background
At present, the construction of ecological environment is vigorously developed in northern areas, so that artificial lakes are dug in many areas for citizens to enjoy and appreciate. In northern areas, due to drought and water shortage, particularly in summer, the water permeation speed to the underground is high, the permeation speed on the surface layer of a gravel land is higher, and in northern areas, water resources are lost, and water resource replenishment is difficult anytime and anywhere.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the too fast problem of artifical lake infiltration, improve an artifical lake seepage prevention structure.
The technical scheme of the utility model:
according to the artificial lake seepage-proofing structure, a GCL bentonite waterproof blanket is laid at the bottom of an artificial lake, a composite geomembrane is laid on the GCL bentonite waterproof blanket, soil with the thickness of more than 500mm covers the composite geomembrane, a reinforcing bar is tied on a slope of the artificial lake, a seepage-proofing layer is laid on the slope of the artificial lake, and the reinforcing bar penetrates through a seepage-proofing layer;
the impermeable layer is a lime soil impermeable layer or a cement impermeable layer, the thickness of the impermeable layer is 400-600 mm, the impermeable layer is tamped in layers, each layer is 150-200mm, the degree of compaction is not less than 0.92, the top of the impermeable layer is 0.3-0.5 m higher than the water surface, and the slope gradient of the side slope is 1: 2.2-3.
Further, the bottom of the impermeable layer is pressed on the composite geomembrane.
Furthermore, the bottom of the artificial lake is a gravel ground surface layer.
Furthermore, a latticed concrete groove is built on the impermeable layer, the steel bar penetrates through four corners of the frame of each concrete groove, and soil is filled in the latticed concrete groove.
Furthermore, the lime-soil impermeable layer is a 20% lime-soil impermeable layer, and the cement impermeable layer is a 10% cement impermeable layer.
Furthermore, plants are planted on the soil filled in the lattice type concrete groove.
Further, the reinforcing steel bars form square grids.
The utility model has the advantages that:
the utility model discloses the prevention of seepage is effectual, and the construction is simple and convenient. The utility model discloses water repellent has all been done at the lakebed and side slope, and two-layer water repellent has been done at the lakebed especially, and furthest's reduction infiltration volume, and the barrier bottom presses on compound geomembrane, and the waterproof layer of lakebed and side slope is in seamless connection. Because the utility model discloses in the aspect of the mainly used artificial lake, so do not handle with the concrete bottom like the dam, but handle with soil more than 500mm, be convenient for like this plant some lotus, reach best view effect.
The utility model discloses adopt GCL bentonite waterproof blanket and compound geomembrane at the bottom of the lake, the construction is quick convenient, and it is effectual to prevent seepage.
The impermeable layer is a lime soil impermeable layer or a cement impermeable layer, the thickness of the impermeable layer is 400-600 mm, the impermeable layer is tamped in layers, each layer is 150-200mm, the degree of compaction is not less than 0.92, the top of the impermeable layer is 0.3-0.5 m higher than the water surface, the slope gradient of the slope is 1:2.2-3, the cost of the lime soil impermeable layer or the cement impermeable layer is low, and a reinforcing bar is arranged on the slope of the artificial lake to enhance the strength of the slope, so that the artificial lake is firmer. The utility model discloses construct square concrete groove on the barrier layer, the reinforcing bar passes four angles of every concrete groove frame, square concrete inslot is filled with soil, utilizes square concrete groove to plant the plant, plays the effect of prevention of seepage and the effect that increases the view effect, and square concrete groove can set up on some slopes, does not set up on some slopes, constitutes a molding, further increases the view effect.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic structural view of the lattice type concrete trough of the present invention.
In the attached drawing, 1-side slope, 11-reinforcing steel bar, 12-impermeable layer and 13-grid concrete groove; 2-lake bottom, 21-GCL bentonite waterproof blanket and 22-composite geomembrane; 3-soil.
Detailed Description
The artificial lake is dug on the surface layer of the gravel land, the water permeation speed to the underground is high in northern areas due to drought and water shortage, particularly in summer, the permeation speed to the surface layer of the gravel land is higher, and water resources are lost in northern areas, so that the water resource replenishment is difficult anytime and anywhere. At present, the construction of ecological environment is vigorously developed in northern areas, so that artificial lakes are dug in many areas for citizens to enjoy, and the waterproofing of the artificial lakes is very important.
As shown in fig. 1-3, digging an artificial lake on the surface layer of a gravel land, digging the artificial lake according to the required size, wherein the slope of the side slope is 1:2.5, when the digging depth exceeds the height of 1.5m, enough side slope 1 should be discharged from the edge of the artificial lake, the slope of the discharging slope is 1:2.5, laying a GCL bentonite waterproof blanket 21 on the bottom 2 of the artificial lake, laying a composite geomembrane 22 on the GCL bentonite waterproof blanket 21, (in principle, the sizes of the GCL bentonite waterproof blanket 21 and the composite geomembrane 22 are larger than the size of the artificial lake bottom 2, so that the side slope 1 can be pressed on the composite geomembrane 22 when being used as an impermeable layer to realize seamless connection); then, steel bars 11 are drilled on the side slope 1, the square structures of the steel bars 11 are uniformly arranged, then 20% of lime soil impermeable layer (formed by uniformly mixing 20% of lime and 80% of clay) or 10% of cement impermeable layer (formed by uniformly mixing 10% of cement and 90% of clay) with the thickness of 400-600 mm is laid on the side slope 1, the impermeable layer 12 is tamped in layers, each layer is 150 mm, the compaction degree is more than or equal to 0.92, the top of the impermeable layer 12 (body) is 0.3-0.5 m higher than the water surface (normal water level), the bottom of the impermeable layer 12 is pressed on the composite geomembrane 22, then square lattice type concrete grooves 13 are built on the impermeable layer 12, the building position of each square lattice type concrete groove 13 is determined by the position of the steel bars 11, the steel bars 11 are positioned at the four corners of the frame of each square lattice type concrete groove 13, finally, soil 3 more than 500mm is covered on the composite geomembrane 22, and the soil 3 is filled in the square lattice type concrete grooves 13, plants can be planted on the soil 3. The utility model discloses because all have soil 3 on lakebed 2 and side slope 1, be convenient for do the view molding, plant aquatic plant, improve ornamental value.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious to those skilled in the art that a plurality of embodiments of the present invention may be combined. Such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (7)

1. An artificial lake seepage-proofing structure is characterized in that a GCL bentonite waterproof blanket is laid at the bottom of an artificial lake, a composite geomembrane is laid on the GCL bentonite waterproof blanket, soil with the thickness of more than 500mm covers the composite geomembrane, a reinforcing bar is tied on a slope of the artificial lake, a seepage-proofing layer is laid on the slope of the artificial lake, and the reinforcing bar penetrates out of the seepage-proofing layer;
the impermeable layer is a lime soil impermeable layer or a cement impermeable layer, the thickness of the impermeable layer is 400-600 mm, the impermeable layer is tamped in layers, each layer is 150-200mm, the degree of compaction is not less than 0.92, the top of the impermeable layer is 0.3-0.5 m higher than the water surface, and the slope gradient of the side slope is 1: 2.2-3.
2. The seepage-proofing structure for artificial lakes according to claim 1, wherein the bottom of the seepage-proofing layer is pressed on the composite geomembrane.
3. The seepage-proofing structure of artificial lake as claimed in claim 1, wherein the bottom of artificial lake is the surface layer of gravel.
4. The artificial lake seepage prevention structure of claim 1, wherein a latticed concrete groove is constructed on the seepage prevention layer, reinforcing steel bars penetrate through four corners of the frame of each concrete groove, and soil is filled in the latticed concrete groove.
5. The seepage-proofing structure for artificial lakes according to claim 1, wherein the lime-soil seepage-proofing layer is a 20% lime-soil seepage-proofing layer, and the cement seepage-proofing layer is a 10% cement seepage-proofing layer.
6. The seepage-proofing structure for artificial lakes according to claim 4, wherein plants are planted in the soil filled in the lattice-type concrete troughs.
7. The seepage-proofing structure for artificial lakes according to claim 1, wherein the reinforcing bars are formed into square squares.
CN201921864366.8U 2019-11-01 2019-11-01 Artificial lake seepage prevention structure Expired - Fee Related CN211690208U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921864366.8U CN211690208U (en) 2019-11-01 2019-11-01 Artificial lake seepage prevention structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921864366.8U CN211690208U (en) 2019-11-01 2019-11-01 Artificial lake seepage prevention structure

Publications (1)

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CN211690208U true CN211690208U (en) 2020-10-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112796279A (en) * 2021-02-01 2021-05-14 中国水利水电科学研究院 Artificial lake bottom anti-seepage structure and construction method thereof
CN115467291A (en) * 2022-10-29 2022-12-13 中国水利水电建设工程咨询贵阳有限公司 Go up storehouse basin seepage prevention structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112796279A (en) * 2021-02-01 2021-05-14 中国水利水电科学研究院 Artificial lake bottom anti-seepage structure and construction method thereof
CN115467291A (en) * 2022-10-29 2022-12-13 中国水利水电建设工程咨询贵阳有限公司 Go up storehouse basin seepage prevention structure

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Granted publication date: 20201016