CN214656782U - An artificial lake bottom anti-seepage structure - Google Patents
An artificial lake bottom anti-seepage structure Download PDFInfo
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- CN214656782U CN214656782U CN202120285976.3U CN202120285976U CN214656782U CN 214656782 U CN214656782 U CN 214656782U CN 202120285976 U CN202120285976 U CN 202120285976U CN 214656782 U CN214656782 U CN 214656782U
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Abstract
An artificial lake bottom anti-seepage structure comprises a supporting layer and an anti-seepage layer, wherein the supporting layer is positioned on the surface of an artificial lake bottom, the anti-seepage layer is positioned above the supporting layer, and the anti-seepage layer is made of polyurea, polyurethane or organic silicon; the supporting layer is made of rock-fill concrete or masonry. The utility model discloses artifical lakebed seepage prevention structure through pouring self-compaction concrete on the stone block body, and the construction polyurea elastomer barrier layer lays the cobblestone, can improve the construction speed and the ecological effect of artifical lakebed, and the environmental friendliness is high, easily controls the technology cost, reduces infiltration loss cost and administrative cost.
Description
Technical Field
The utility model belongs to the technical field of artifical lake prevention of seepage, especially an artifical lake bottom seepage prevention structure.
Background
The artificial lake is a lake excavated by people in a planned and purposeful way and is generated in a non-natural environment. The urban landscape lake is an artificial lake usually constructed in urban areas and suburbs, is used for improving the urban ecological environment and improving the life quality of citizens, and has unique ecological, landscape, leisure and health functions; the reservoir is an artificial lake formed by constructing a barrage at a gorge of a mountain ditch or a river, and has functions of irrigation, power generation, flood control, water supply, fish culture and the like. A famous artificial lake is a thousand island lake, is located in pure Zhejiang, and is called a Xinanjiang reservoir, has an area of about 580 square kilometers under a normal water level condition, has water storage capacity of 178 hundred million cubic meters, and is the largest artificial lake in China.
The construction of the artificial lake is a systematic project, and combines the experience of the construction of the existing artificial lakes at home and abroad, the artificial lake with beautiful, stable and safe environment is constructed, and the anti-seepage measure at the bottom of the lake is a problem to be mainly solved, particularly, the leakage at the bottom of the lake of the artificial lake in a city not only causes water loss, but also damages the building foundation of surrounding residents, leads to the result that the estimation cannot be carried out, and brings adverse social effects.
The anti-seepage technology adopted by the artificial lake determines the investment scale of the project, the progress in the construction process and the construction complexity of the project. Clay is tamped for seepage prevention of the traditional artificial lake bottom, but the clay is difficult to find in large and medium cities, and the transportation cost is too high from other places; the other seepage-proofing method is concrete wall seepage-proofing, but the engineering quantity is too large, the manufacturing cost is high, the cement is easy to be washed by running water, the seepage-proofing effect is poor, and the like, so that the method is not suitable for the seepage-proofing requirement of the artificial lake. In recent years, a method for using a geomembrane for seepage prevention of an artificial lake is a commonly used method, but the method generally comprises the steps of compacting a soil layer, covering a protective soil sand layer on the soil layer, constructing the geomembrane upwards, constructing cement mortar, and paving gravels or cobblestones.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing an artifical lake bottom seepage prevention structure, its cost is low, the prevention of seepage is effectual, the efficiency of construction is high, the time limit for a project is short, long service life, the working costs is low, ecological function is good, can satisfy artifical lake prevention of seepage needs completely.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an artificial lake bottom anti-seepage structure comprises a supporting layer and an anti-seepage layer, wherein the supporting layer is positioned on the surface of an artificial lake bottom, the anti-seepage layer is positioned above the supporting layer, and the anti-seepage layer is one of polyurea, polyurethane and organic silicon; the supporting layer is one of rock-fill concrete and masonry.
Furthermore, a sandstone layer and/or a planting layer are/is arranged on the impermeable layer.
Furthermore, the gravel layer is pebbles, and the planting layer is sandy soil.
Further, the planting layer is located above the gravel layer.
Further, the barrier layer is a polyurea elastomer; the thickness of the supporting layer is 30-80 cm, and the thickness of the impermeable layer is 1-3 mm.
Furthermore, a plurality of reinforcing supporting layers and reinforcing impermeable layers which are alternately distributed are arranged between the supporting layer and the impermeable layer.
Further, the reinforced support layer is one of rock-fill concrete or masonry, and the reinforced impermeable layer is a polyurea elastomer.
The utility model has the advantages that: the utility model discloses artifical lakebed seepage prevention structure, its cost is low, the prevention of seepage is effectual, the efficiency of construction is high, the time limit for a project is short, long service life, the working costs is low, ecological function is good, can satisfy artifical lake prevention of seepage needs completely, can reduce artifical lake water loss on the one hand, resident's security of the lives and property around the guarantee, can satisfy the needs of the quick construction development in green city on the other hand.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the artificial lake bottom seepage-proofing structure of the present invention.
Fig. 2 is a schematic structural view of an embodiment 2 of the artificial lake bottom seepage-proofing structure of the present invention.
Fig. 3 is a schematic structural view of an embodiment 3 of the artificial lake bottom seepage-proofing structure of the present invention.
Fig. 4 is a schematic structural diagram of an embodiment 4 of the artificial lake bottom anti-seepage structure of the present invention.
Fig. 5 is a schematic structural view of an embodiment 5 of the artificial lake bottom anti-seepage structure of the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1, the utility model provides an artificial lakebed anti-seepage structure, it is the utility model discloses an embodiment 1, including supporting layer 1 and barrier layer 2, this supporting layer 1 is located artificial lakebed 3 surfaces, and this barrier layer 2 is located this supporting layer 1 top, and this barrier layer 2 is polyurea, polyurethane or organosilicon. The supporting layer 1 is made of rock-fill concrete, and is formed after the gap between the stones is filled and solidified by utilizing self-compacting concrete, or the supporting layer 1 is made of mortar, and slurry is poured on a rock-fill body to form the supporting layer. Preferably, the impermeable layer 2 is a polyurea elastomer, the polyurea elastomer is a material containing an isocyanate component and an amino polyether component, and the isocyanate component and the amino polyether component are sprayed by special high-pressure high-temperature spraying equipment to form an elastomer film, namely the polyurea elastomer. In addition, preferably, the thickness of the supporting layer 1 is 30-80 cm, and the thickness of the impermeable layer 2 is 1-3 mm.
As shown in fig. 2, it is an embodiment 2 of the seepage-proofing structure of the artificial lake bottom of the present invention, and the difference from embodiment 1 is that a gravel layer 4 is provided on the seepage-proofing layer 2, and the gravel layer 4 is cobblestones.
As shown in fig. 3, it is an embodiment 3 of the artificial lake bottom anti-seepage structure of the present invention, and the difference from embodiment 1 is that a planting layer 5 is provided on the anti-seepage layer 2, and the planting layer 5 is sand.
As shown in fig. 4, it is an embodiment 4 of the anti-seepage structure for artificial lake bottom of the present invention, and the difference from embodiment 2 is that a planting layer 5 is arranged above the gravel layer 4, and the planting layer 5 is sand.
As shown in fig. 5, it is an embodiment 5 of the artificial lake bottom seepage-proofing structure of the present invention, which is different from embodiments 1-4 in that a plurality of reinforcing support layers 11 and reinforcing seepage-proofing layers 21 are alternately arranged between the support layer 1 and the seepage-proofing layer 2 (the sandstone layer 4 and the planting layer 5 are not shown). Each of the reinforced supporting layer 11 and the reinforced impermeable layer 21 may be a supporting layer structure and an impermeable layer structure in the prior art, however, preferably, the reinforced supporting layer 11 is the same as the supporting layer 1, and is made of rock-fill concrete or masonry stone, and the reinforced impermeable layer 21 is the same as the impermeable layer 2, and is made of polyurea elastomer.
The utility model also provides a construction method of artifical lakebed seepage prevention structure, including following step:
(1) earth excavation: excavating earth and stones by using an excavator and a bulldozer and the like to form an artificial lake;
(2) and (3) supporting layer construction: stacking stones on the soil body at the bottom of the excavated artificial lake to form a stone-stacking body, and then pouring self-compacting concrete on the stone-stacking body until the self-compacting concrete flows freely to fill gaps among the stones of the stone-stacking body, so as to form a stone-stacking concrete supporting layer;
or pouring slurry on the rockfill body to form a grouted stone supporting layer;
(3) and (3) construction of an impermeable layer: after the self-compacting concrete is solidified, coating an impermeable layer primer on the supporting layer, and performing impermeable layer spraying construction by taking polyurea as a material to form an impermeable layer;
(4) and (3) constructing a sand stone layer and/or a planting layer: paving a sandstone layer and/or a planting layer for planting the vegetation at the bottom of the artificial lake on the impervious layer, wherein the sandstone layer takes cobblestones as raw materials, and the planting layer takes common sandy soil as raw materials; if the sandstone layer and the planting layer exist, the planting layer is positioned above the sandstone layer.
Further, between the step (2) and the step (3), there are also step (2-3) of reinforcing support layer and reinforcing impermeable layer construction, each of the reinforcing support layer 11 and the reinforcing impermeable layer 21 may be a support layer structure and an impermeable layer structure in the prior art, however, preferably, the construction of the reinforcing support layer 11 is the same as that of the support layer 1, and is formed by filling the gaps between the stones of the rockfill body with self-compacting concrete free flow, and the reinforcing impermeable layer 21 is the same as that of the impermeable layer 2, and is formed by polyurea spraying construction.
The utility model discloses artifical lakebed seepage prevention structure through pouring self-compaction concrete on the stone block body, and the construction polyurea elastomer barrier layer lays the cobblestone, can improve the construction speed and the ecological effect of artifical lakebed, and the environmental friendliness is high, easily controls the technology cost, reduces infiltration loss cost and administrative cost.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. The present invention can be modified in many ways without departing from the spirit and scope of the present invention, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. An artificial lake bottom anti-seepage structure is characterized by comprising a supporting layer and an anti-seepage layer, wherein the supporting layer is positioned on the surface of an artificial lake bottom, the anti-seepage layer is positioned above the supporting layer, and the anti-seepage layer is one of polyurea, polyurethane and organic silicon; the supporting layer is one of rock-fill concrete and masonry.
2. The artificial lake bottom seepage-proofing structure of claim 1, wherein the seepage-proofing layer is provided with a sandstone layer and/or a planting layer.
3. The artificial lake bottom seepage prevention structure of claim 2, wherein the gravel layer is pebbles, and the planting layer is sandy soil.
4. The artificial lake bottom seepage prevention structure of claim 2, wherein the planting layer is located above the sand layer.
5. The artificial lake bottom barrier structure according to any one of claims 1 to 4, wherein the barrier layer is a polyurea elastomer; the thickness of the supporting layer is 30-80 cm, and the thickness of the impermeable layer is 1-3 mm.
6. The artificial lake bottom seepage-proofing structure of claim 5, wherein a plurality of reinforcing supporting layers and reinforcing seepage-proofing layers which are alternately distributed are arranged between the supporting layers and the seepage-proofing layers.
7. The artificial lakebed seepage-proofing structure of claim 6, wherein the reinforcing support layer is one of rock-fill concrete or masonry, and the reinforcing seepage-proofing layer is polyurea elastomer.
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| CN202120285976.3U CN214656782U (en) | 2021-02-01 | 2021-02-01 | An artificial lake bottom anti-seepage structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112796279A (en) * | 2021-02-01 | 2021-05-14 | 中国水利水电科学研究院 | An artificial lake bottom anti-seepage structure and its construction method |
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Cited By (1)
| 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 | An artificial lake bottom anti-seepage structure and its construction method |
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