CN211172110U - An artificial lake anti-seepage structure - Google Patents

Abstract

The utility model mainly relates to an artificial lake anti-seepage structure, which belongs to the field of artificial lake construction. The main points of the technical solution include: a lake bottom, and a first coarse sand layer arranged on the lake bottom, and an anti-seepage layer is arranged on the first coarse sand layer. seepage membrane, between the first coarse sand layer and the anti-seepage membrane, there is a drainage component for preventing groundwater from damaging the seepage-proof membrane, the drainage component is connected with a reservoir through a water pump, and the drainage components are installed between the drainage components. For the connecting piece for buffering and connecting the drainage assembly, the anti-seepage membrane is provided with an anti-seepage membrane protective layer, the anti-seepage membrane protective layer is covered with planting soil, and aquatic plants are planted on the planting soil. Landscape stacks of compacted planting soil are placed between the plants. The purpose of the utility model is to provide an artificial lake anti-seepage structure, which can not only protect the anti-seepage membrane and discharge the groundwater in time, but also can improve the ecological environment of the artificial lake.

Description

An artificial lake anti-seepage structure

technical field

The utility model mainly relates to the field of artificial lake construction, in particular to an artificial lake anti-seepage structure.

Background technique

An artificial lake is a kind of lake dug out by people in a planned and purposeful manner. It is a lake produced in a non-natural environment. The loss of water in an artificial lake is either through evaporation or leakage. The former is unavoidable, and the latter is It needs to be solved by formulating corresponding technical means.

At present, under the geological conditions with large foundation permeability coefficient and relatively deep impermeable layer, cohesive soil is generally used for full-section anti-seepage prevention of domestic artificial lakes; The grit cover is heavy on the membrane.

If the horizontal anti-seepage method of laying geomembrane is used for the full-section anti-seepage of the artificial lake, in order to prevent plant roots from piercing the membrane material, aquatic plants cannot be planted at the bottom of the lake, so the problems of eutrophication and deterioration of water quality in the artificial lake cannot be solved; however, Because the groundwater level rises and falls periodically in the lower support layer of the geomembrane, the geomembrane will be burst by the groundwater during the rising of the groundwater level, which will lead to the leakage of the artificial lake.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an artificial lake anti-seepage structure, which can not only protect the anti-seepage membrane and discharge the groundwater in time, but also improve the ecological environment of the artificial lake.

The above-mentioned purpose of the present utility model is achieved through the following technical solutions: an artificial lake anti-seepage structure, comprising, a lake bottom, and a first coarse sand layer arranged on the lake bottom, and the first coarse sand layer is provided with an anti-seepage structure Membrane, between the first coarse sand layer and the anti-seepage membrane, there is a drainage assembly for preventing groundwater from damaging the anti-seepage membrane. A connector for buffering and connecting the drainage assembly, the anti-seepage membrane is provided with an anti-seepage membrane protective layer, the anti-seepage membrane protective layer is covered with planting soil, and aquatic plants are planted on the planting soil, and the aquatic plants are Landscape stacked rocks with compacted planting soil are placed in between.

By adopting the above technical solution, when there is a lot of groundwater, the groundwater first reaches the first coarse sand layer, and the first coarse sand layer plays the role of filtering and buffering the groundwater, and then the drainage component further blocks the groundwater from rising, and will gradually The rising groundwater is guided into the reservoir by the water pump to prevent the groundwater from causing damage to the anti-seepage membrane; when uneven settlement occurs at the bottom of the lake, the anti-seepage membrane in the settlement area will be subjected to tensile stress, and the first coarse sand layer can The drainage components are uniformly stressed, and the drainage components make the anti-seepage membrane evenly stressed, and the connectors between the drainage components can further reduce the tensile stress; Planting aquatic plants on the soil can remove organic pollutants in the lake water and maintain the water quality of the lake water. Landscape stacking can not only prevent the soil from loosening, but also increase the aesthetics of the artificial lake.

The utility model further provides: the drainage assembly includes a drainage layer arranged on the first coarse sand layer, the drainage layer passes through a plurality of drainage pipes along the extension direction of the lake bottom, and the drainage layer is provided with drainage pipes connected to the drainage layer. The drainage holes are perpendicular to each other, and the drainage holes communicate with the drainage tube.

By adopting the above technical solution, when the groundwater penetrates the first coarse sand layer and reaches the drainage component, the groundwater enters the drainage hole and reaches the drainage pipe.

The utility model further provides that: the two sides of the drainage layer are provided with water blocking steps, and the water blocking steps between the drainage layers are all in contact with each other.

By adopting the above technical solution, in the process of the gradual rise of groundwater, the water-proof steps between the drainage layers are interlocked with each other, which can prevent most groundwater from reaching the anti-seepage membrane and avoid the anti-seepage membrane being damaged by the gushing groundwater .

The utility model further provides: the connecting piece includes a first spring tube with one end installed on one side of the drainage layer and the other end installed on one side of the other drainage layer, the first spring tube is located below the water blocking step, so The first spring tube is connected with the drainage tube.

By adopting the above technical solution, the first spring tube can turn the connection between the drainage layers into an elastic connection. When the groundwater reaches the drainage layer, the first spring tube can absorb a certain tensile stress, reduce the impact on the drainage layer, and at the same time Slow down the damage to the impermeable membrane.

The utility model further provides: a second spring tube is vertically installed on one side of the drainage layer close to the artificial lake, and the second spring tube extends along the first coarse sand layer to the design normal water level of the lake.

By adopting the above technical solution, when the water level of the lake is not enough at the designed normal water level and the groundwater is abundant, the groundwater can be guided into the lake through the second spring tube.

The utility model further provides that: the second spring tube is connected with a two-way joint, one end of the two-way joint is connected with a water pump, and the other end is connected with a water pipe connected with the artificial lake.

By adopting the above technical solution, when using the water pump, the groundwater can be guided into the lake, and when the lake water level reaches the design normal water level, the groundwater can also be guided into the reservoir.

The utility model further provides: the anti-seepage membrane protection layer is composed of a second coarse sand layer and a plurality of concrete prefabricated plates.

By adopting the above technical solution, the second coarse sand layer can reduce the pressure of groundwater and lake water on the anti-seepage membrane, while the precast concrete slab can prevent the anti-seepage membrane from being damaged by the roots of aquatic plants.

The utility model is further provided that: the drainage holes are all provided with filter nets.

By adopting the above technical solution, the drainage hole can be prevented from being blocked.

To sum up, the utility model has the following beneficial effects:

When there is a lot of groundwater, the groundwater first reaches the first coarse sand layer, and the first coarse sand layer plays a role in filtering and buffering the groundwater. Then, the drainage component further blocks the groundwater from rising, and the gradually rising groundwater enters the drainage hole. After the drainage tube reaches the spring tube, the spring tube is connected to the water pump, and the water pump guides the groundwater into the reservoir to prevent the groundwater from causing damage to the anti-seepage membrane; when uneven settlement occurs at the bottom of the lake, the anti-seepage membrane within the settlement area will be affected. Due to the effect of tensile stress, the first coarse sand layer can make the drainage component evenly stressed, the drainage component further makes the anti-seepage membrane stress evenly, and the spring tube between the drainage components can further reduce the tensile stress;

In addition, the second coarse sand layer and concrete prefabricated plate in the protective layer of the anti-seepage membrane can avoid damage to the anti-seepage membrane caused by plant roots. Planting aquatic plants on the planting soil can remove organic pollutants in the lake water and maintain the water quality of the lake. Landscape stacked stones can not only prevent the loosening of the planting soil, but also increase the aesthetics of the artificial lake.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present utility model;

2 is a cross-sectional view of the overall structure of the embodiment of the present invention.

Reference numerals: 1. Lake bottom; 2. First coarse sand layer; 3. Anti-seepage membrane; 4. Second coarse sand layer; 41. Precast concrete slab; 5. Planting soil; 51. Aquatic plants; stone; 6, drainage layer; 61, drainage pipe; 62, drainage hole; 621, filter screen; 63, water barrier step; 7, the first spring pipe; 71, the second spring pipe; 8, the design normal water level; 9, Water pump; 91. Reservoir.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

This embodiment: an artificial lake anti-seepage structure, as shown in Figures 1 and 2, includes a lake bottom 1, and a first coarse sand layer 2 arranged on the lake bottom 1, and the first coarse sand layer 2 is pasted with The anti-seepage membrane 3 is provided with a drainage component between the first coarse sand layer 2 and the anti-seepage membrane 3. The main function of the drainage component is to prevent groundwater from damaging the anti-seepage membrane 3, and the drainage component is connected to a reservoir 91 through a water pump 9. , between the drainage components, connectors for buffering and connecting the drainage components are installed. In addition, an anti-seepage membrane protective layer is provided on the anti-seepage membrane 3, and planting soil 5 is also laid on the anti-seepage membrane protective layer. Aquatic plants 51 are planted on the planting soil 5 , and landscape stacked rocks 52 for compacting the planting soil 5 are placed between the aquatic plants 51 .

When there is a lot of groundwater, the groundwater first reaches the first coarse sand layer 2, and the first coarse sand layer 2 first filters and buffers the groundwater, and then the groundwater flows through the first coarse sand layer 2 and reaches the drainage component At the location, the drainage assembly further blocks the groundwater from rising, and guides the groundwater that is gradually rising into the reservoir 91 through the water pump 9, preventing the groundwater from causing damage to the anti-seepage membrane 3;

When the lake bottom 1 subsides unevenly, the anti-seepage membrane 3 in the settlement area will be subjected to tensile stress. The first coarse sand layer 2 can make the drainage component uniformly stressed, and the drainage component can make the anti-seepage membrane 3 uniformly stressed. And the connection between the drainage components can further reduce the tensile stress; in addition, the anti-seepage membrane protective layer can prevent the plant root system from causing damage to the anti-seepage membrane 3, and planting aquatic plants 51 on the planting soil 5 can remove the organic pollution in the lake water. It can not only prevent the planting soil 5 from loosening, but also increase the aesthetics of the artificial lake.

In this embodiment, the drainage assembly includes: a drainage layer 6 disposed on the first coarse sand layer 2, and the drainage layer 6 is made of concrete, and a plurality of drainage layers 6 are drilled in the drainage layer 6 along the extending direction of the lake bottom. There is a drainage tube 61, and the drainage layer 6 is provided with a drainage hole 62 perpendicular to the drainage tube 61, and the drainage hole 62 communicates with the drainage tube 61. When the groundwater passes through the first coarse sand layer 2 and reaches the drainage assembly, The groundwater enters the drainage hole 62 and reaches the drainage pipe 61 . The drainage pipe 61 is connected to the water pump 91 , and the groundwater overflowing into the drainage pipe 61 is guided to the reservoir 91 by the water pump 9 .

Wherein, the two sides of the drainage layer 6 are provided with water blocking steps 63, and the water blocking steps 63 between the drainage layers 6 are in contact with each other. During the gradual rise of groundwater, the water blocking steps 63 between the drainage layers 6 are mutually Buckling them together can prevent most of the groundwater from reaching the anti-seepage membrane 3 and prevent the anti-seepage membrane 3 from being damaged by the gushing groundwater.

In this embodiment, the connecting piece includes a first spring tube 7 with one end installed on one side of the drainage layer 6 and the other end installed on one side of the other drainage layer 6 , and the first spring tube 7 is located below the water blocking step 63 , the first spring tube 7 is connected with the drainage tube 61 through the flange, wherein the first spring tube 7 can change the connection between the drainage layers 6 into an elastic connection, when the groundwater reaches the drainage layer 6, the first spring The tube 7 can absorb a certain tensile stress, reduce the impact on the drainage layer 6, and at the same time slow down the damage to the impermeable membrane 3.

Among them, a second spring tube 71 is vertically installed on the side of the drainage layer 6 close to the artificial lake, and the second spring tube 71 extends along the first coarse sand layer 2 to the design normal water level 8 of the lake. When the lake water level is insufficient The design of the constant water level is 8, and when there is a lot of groundwater, the groundwater can be guided into the lake through the second spring tube 71 .

In addition, the second spring tube 71 is connected with a two-way joint, and one end of the water outlet of the two-way joint is connected with the water pump 9, and the other end is connected with a water pipe connected with the artificial lake. When the water pump 9 is used, the groundwater can be guided to the lake. Among them, when the lake water level reaches the design normal water level 8, the water outlet of the water pipe is closed, and the groundwater can also be guided into the reservoir 91.

In addition, the impermeable membrane protective layer is composed of a second coarse sand layer 4 and a plurality of prefabricated concrete slabs 41. The second coarse sand layer 4 can reduce the pressure of groundwater and lake water on the impermeable membrane 3, while the prefabricated concrete slabs 41 can The anti-seepage membrane 3 is prevented from being damaged by the roots of the aquatic plants 51 .

In addition, the drainage holes 62 are provided with filter meshes 621, which can prevent the drainage holes 62 from being blocked by debris.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the present utility model is used All new types of claims are protected by the patent law.

Claims (8)

1. An artificial lake seepage prevention structure is characterized by comprising: lakebed (1) to and set up first coarse sand layer (2) at the lakebed (1), be equipped with prevention of seepage membrane (3) on first coarse sand layer (2), be equipped with the drainage subassembly that is used for preventing groundwater destruction prevention of seepage membrane (3) between first coarse sand layer (2) and prevention of seepage membrane (3), the drainage subassembly passes through water pump (9) and is connected with cistern (91), all install the connecting piece that is used for the buffering and connects the drainage subassembly between the drainage subassembly, be equipped with prevention of seepage membrane protective layer on prevention of seepage membrane (3), prevention of seepage membrane protective layer upper berth is equipped with planting soil (5), it has aquatic plant (51) to plant on planting soil (5), landscape fold stone (52) of compaction planting soil (5) have been placed between aquatic plant (51).

2. The seepage prevention structure for artificial lakes according to claim 1, wherein the drainage assembly comprises: the drainage layer (6) is arranged on the first coarse sand layer (2), a plurality of drainage tubes (61) penetrate through the drainage layer (6) along the extending direction of the lake bottom, drainage holes (62) perpendicular to the drainage tubes (61) are formed in the drainage layer (6), and the drainage holes (62) are communicated with the drainage tubes (61).

3. The seepage-proofing structure for artificial lakes according to claim 2, wherein water-resisting steps (63) are arranged on two sides of the drainage layers (6), and the water-resisting steps (63) between the drainage layers (6) are mutually contacted.

4. The seepage-proofing structure for artificial lakes according to claim 1, wherein said connecting member comprises: one end of the first spring pipe (7) is arranged on one side of the drainage layer (6), the other end of the first spring pipe is arranged on one side of the other drainage layer (6), the first spring pipe (7) is located below the waterproof step (63), and the first spring pipe (7) is connected with the drainage pipe (61).

5. An artificial lake seepage prevention structure as defined in claim 2, wherein a second spring pipe (71) is vertically installed on one side of the drainage layer (6) close to the edge of the artificial lake, and the second spring pipe (71) extends to the designed normal water level (8) of the lake along the first coarse sand layer (2).

6. An artificial lake seepage prevention structure as defined in claim 5, wherein the second spring pipe (71) is connected with a two-way joint, one end of the two-way joint is connected with a water pump (9), and the other end of the two-way joint is connected with a water pipe communicated with the artificial lake.

7. An artificial lake seepage prevention structure as claimed in claim 1, wherein the seepage prevention film protection layer is composed of a second coarse sand layer (4) and a plurality of precast concrete slabs (41).

8. The seepage-proofing structure for artificial lakes according to claim 2, wherein the drainage holes (62) are internally provided with filter screens (621).

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