Flood bank suitable for salt lake area

Abstract

The utility model discloses a flood bank suitable for a salt lake area. The flood bank comprises a flood bank body, a clay layer, an anti-seepage layer and an anti-seepage wall. The impermeable layer is provided with an inclined impermeable part and a horizontal impermeable part; the clay layer is laid on the anti-seepage layer, and the free end of the inclined anti-seepage part extends out of the clay layer and is buried in the flood bank body. The anti-seepage wall is inserted into a bottom soil body of the waterside of the anti-seepage layer, and the free end of the horizontal anti-seepage part extends out of the bottom of the clay layer and wraps the upper portion of the anti-seepage wall. The upper portion of the anti-seepage layer is buried in the flood bank body, the lower portion of the anti-seepage layer extends to the anti-seepage wall and is connected with the anti-seepage wall to form an integral anti-seepage system, water flow can be prevented from entering the flood bank body, the problems that the salinized soil flood bank sinks when encountering water and a foundation leaks are solved, large-scale application of salinized soil can be achieved, and the anti-seepage system is suitable for large-scale popularization and application. The technical problems of shortage of building materials and high transportation cost of the flood bank in the salt lake area are solved. The clay layer can be used as a gland to improve the stability of the flood bank.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and flood control, and in particular to a flood control dike suitable for salt lake areas. Background Technology

[0002] In recent years, the surface area of ​​inland salt lakes in my country has shown an expanding trend due to various factors (such as increased glacial meltwater and soil degradation). This expansion of salt lake surfaces easily triggers salt lake floods, potentially destroying salt fields and production facilities of salt lake enterprises, resulting in significant economic losses. Therefore, the construction of flood control dikes in salt lake areas is essential. Existing flood control dikes are mainly constructed using clay, but clay is scarce and requires transportation, leading to high construction costs. If excavated saline soil is used as the dike material, the dikes will experience problems such as water dissolution, foundation seepage, and instability. Therefore, improving the seepage prevention performance of saline soil flood control dikes is urgently needed. Summary of the Invention

[0003] In view of this, this utility model proposes a flood control dike suitable for salt lake areas, which uses an impermeable layer and an impermeable wall for seepage prevention, thereby solving the problems of saline soil flood control dikes dissolving and sinking when exposed to water and foundation leakage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The flood control dike applicable to salt lake areas described in this utility model includes a main body of the flood control dike constructed from saline soil, as well as a clay layer, a seepage-proof layer, and a seepage-proof wall; the seepage-proof layer has an inclined seepage-proof section laid on the water-facing side of the main body of the flood control dike and a horizontal seepage-proof section extending from the bottom of the water-facing side of the main body of the flood control dike.

[0006] The clay layer is laid on the impermeable layer, and the height of the clay layer's spur is lower than the top elevation of the main body; the free end of the inclined impermeable part extends out of the clay layer's spur and is buried inside the main body of the flood control dike, and the free end of the inclined impermeable part is a U-shaped structure with an opening at the top; the impermeable wall is inserted into the soil at the bottom of the water-facing side of the impermeable layer, and the free end of the horizontal impermeable part extends out of the bottom of the clay layer and covers the upper part of the impermeable wall.

[0007] The beneficial effects are as follows: The upper part of the seepage-proof layer of this utility model is buried inside the main body of the flood control dike, and the lower part extends to the seepage-proof wall and connects with the seepage-proof wall, so that the seepage-proof layer and the seepage-proof wall are connected to form an integrated seepage-proof system, which can prevent water from seeping into the main body of the flood control dike, thereby solving the problems of water dissolution and foundation leakage in saline soil flood control dikes. In addition, this utility model has excellent seepage-proof performance, which can realize the large-scale application of saline soil, solve the technical problems of material shortage and high transportation costs in the construction of flood control dikes in salt lake areas, and thus reduce project investment. Furthermore, this utility model lays a clay layer with abutments on the water-facing side of the main body of the flood control dike, which has a capping effect, effectively improving the stability of the flood control dike, and also preventing the dike toe from being eroded by excessive water flow.

[0008] Preferably, a rubber waterstop is provided between the free end of the horizontal seepage-proof section and the water-facing surface of the seepage-proof wall to further improve the seepage-proof performance at the connection. In actual construction, the rubber waterstop can be bonded by hot-melt adhesion, and the seepage-proof layer is bonded to the rubber waterstop using hot-melt technology.

[0009] Preferably, the seepage barrier is a plastic steel plate and its bottom extends into the impermeable soil layer of the soil body, protecting the soil below the main body of the flood control dike, and has seepage prevention performance, solving problems such as dike foundation leakage, instability and damage.

[0010] Preferably, the slope of the water-facing side of the main body of the flood control dike is 1:2, and the slope of its back side is 1:2; the slope of the water-facing side of the clay layer is 1:3, to ensure the covering effect of the clay layer.

[0011] Preferably, the impermeable layer is a double-textured HDPE membrane (i.e., high-density polyethylene membrane), which has anti-slip properties, making construction convenient; it also has impermeability properties, thereby protecting the main body and foundation of the saline soil flood control dike.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] The upper part of the seepage-proof layer of this invention is buried within the main body of the flood control dike, and the lower part extends to and connects with the seepage-proof wall, forming an integrated seepage-proof system. This system effectively prevents water from seeping into the main body of the flood control dike, thus solving the problems of water dissolution and foundation leakage in saline soil flood control dikes. Furthermore, this invention has excellent seepage-proof performance, enabling large-scale application of saline soil and solving the technical problems of material shortages and high transportation costs in flood control dike construction in salt lake areas, thereby reducing project investment. Moreover, this invention lays a clay layer with buttresses on the water-facing side of the main body of the flood control dike, which acts as a capping layer, effectively improving the stability of the flood control dike and preventing erosion of the dike toe due to excessive water flow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0016] Figure 3 yes Figure 1 Enlarged view of section B in the middle. Detailed Implementation

[0017] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0018] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-3 As shown, this utility model proposes a flood control dike suitable for salt lake areas, including a flood control dike body 1 constructed of saline soil, as well as a clay layer 2, an impermeable layer 3, and an impermeable wall 4. The impermeable system composed of the impermeable layer 3 and the impermeable wall 4 prevents water from seeping into the flood control dike body and the dike foundation, thereby improving the impermeability and solving the problems of saline soil flood control dike body dissolving and sinking when exposed to water, dike foundation leakage, and instability and damage.

[0021] The slope of the water-facing side of the main body of the flood control dike 1 is 1:2, and the slope of its back side is 1:2; the slope of the water-facing side of the clay layer 2 is 1:3 and it is laid on the seepage-proof layer 3. The height of the abutment 2.1 of the clay layer 2 is lower than the top elevation of the main body of the flood control dike 1. The clay layer 2 has a covering effect, which effectively improves stability and prevents water flow from scouring the dike toe.

[0022] The impermeable layer 3 has an inclined impermeable section laid on the water-facing side of the main body of the flood control dike 1 and a horizontal impermeable section extending from the bottom of the water-facing side of the main body of the flood control dike 1; the free end of the inclined impermeable section extends out of the abutment 2.1 of the clay layer 2 and is buried in the main body of the flood control dike 1, and the free end of the inclined impermeable section is a U-shaped structure 3.1 with an upper opening; the impermeable wall 4 is inserted into the soil at the bottom of the water-facing side of the impermeable layer 3, and the free end of the horizontal impermeable section extends out of the bottom of the clay layer 2 and covers the upper part of the impermeable wall 4, so that the impermeable layer and the impermeable wall form an integrated impermeable system, which not only protects the saline soil body, but also protects the dike foundation below the body, thereby improving the safety of the flood control dike.

[0023] In this invention, the upper part of the seepage-proof layer 3 is buried inside the main body 1 of the flood control dike, and the lower part extends to the seepage-proof wall 4 and connects with it. This connects the seepage-proof layer 3 and the seepage-proof wall 4 to form an integrated seepage-proof system, which can prevent water from seeping into the main body 1 of the flood control dike, thereby solving the problems of water dissolution and foundation leakage in saline soil flood control dikes. In addition, this invention has excellent seepage-proof performance, enabling the large-scale application of saline soil, solving the technical problems of material shortage and high transportation costs in flood control dike construction in salt lake areas, and thus reducing project investment.

[0024] In actual construction, a rubber waterstop 5 (in an L-shape) is installed between the free end of the horizontal seepage prevention section and the seepage prevention wall 4. The rubber waterstop 5 is adhered to the seepage prevention wall 4 by hot-melt bonding. The rubber waterstop 5 and the seepage prevention layer 3 are hot-melt bonded to ensure the waterproof performance of the connection and further improve the seepage prevention capacity.

[0025] In actual construction, the seepage barrier 4 uses plastic steel plates. The bottom of the seepage barrier 4 extends into the impermeable soil layer (which is impermeable relative to the saline soil layer) of the soil, with an insertion depth of at least 0.3m, to protect the foundation of the main flood control dike 1 as much as possible and prevent the dike foundation from becoming unstable when exposed to water. The seepage barrier layer 3 uses a double-textured HDPE membrane, preferably 2.0mm thick or thicker, with a permeability coefficient ≤1×10⁻⁶. -13 The speed of cm / s not only provides anti-slip properties, facilitating the filling of clay layer 2, but also offers excellent waterproofing, protecting the main structure.

[0026] In actual construction, the soil above the salt lake is a saline soil layer 6, and below it is a relatively impermeable layer 7 (which is impermeable or has a very low permeability coefficient relative to the saline soil layer). Therefore, before construction, it is necessary to determine the depth of the impermeable layer 7 of the soil, and then construct the anti-seepage wall 4 at the designed location (located at the toe of the dike on the water-facing side of the main body of the flood control dike 1). The lower part of the anti-seepage wall 4 is located in the impermeable layer, with a depth of at least 0.3m in the impermeable layer, to ensure the anti-seepage performance of the dike foundation and protect the dike foundation.

[0027] The main body of the flood control dike 1 was constructed using saline soil (the slope of both the back side and the front side of the dike is 1:2). During construction, a layered spreading and layered compaction method was adopted to ensure that the compaction degree of the main body of the flood control dike 1 meets the design requirements.

[0028] After the main body of the flood control dike 1 is completed, the seepage prevention layer 3 will be constructed. During construction, an anchoring trench with a depth × width of 1 m × 1 m will be excavated on the water-facing side of the main body of the flood control dike 1. The upper part of the seepage prevention layer 3 will be laid along the anchoring trench and backfilled with saline soil. The seepage prevention layer 3 will be laid along the water-facing side of the main body of the flood control dike 1 to form an inclined seepage prevention section. The seepage prevention layer 3 will continue to be laid from the bottom of the main body of the flood control dike 1 to the seepage prevention wall 4 to form a horizontal seepage prevention section. A rubber waterstop 5 (the rubber waterstop 5 is L-shaped to ensure seepage prevention performance) will be attached to the upper part of the seepage prevention wall 4. The rubber waterstop 5 and the free end of the horizontal seepage prevention section will be fused together using hot-melt technology and then backfilled. The upper part of the seepage prevention layer 3 will be buried inside the main body of the flood control dike 1, and its lower part will be wrapped on the seepage prevention wall 4 and have the rubber waterstop 5, so that the seepage prevention layer 3 and the seepage prevention wall 4 are connected to form a closed seepage prevention ridge to ensure seepage prevention performance.

[0029] A clay layer 2 is laid on top of the impermeable layer 3, and a spur is constructed on top of the clay layer 2 to complete the construction. During the laying process, the clay is spread and compacted in layers to ensure that the compaction degree of the impermeable layer 3 meets the design requirements. The clay near the impermeable layer 3 is compacted manually, while the clay in other areas is compacted mechanically to avoid damage to the impermeable layer 3.

[0030] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flood control dike suitable for salt lake areas, comprising a main body of the dike constructed from saline soil, characterized in that: It also includes a clay layer, a seepage barrier layer, and a seepage barrier wall; the seepage barrier layer has an inclined seepage barrier section laid on the water-facing side of the main body of the flood control dike and a horizontal seepage barrier section extending from the bottom of the water-facing side of the main body of the flood control dike. The clay layer is laid on the impermeable layer, and the height of the clay layer's spur is lower than the top elevation of the main body; the free end of the inclined impermeable part extends out of the clay layer's spur and is buried inside the main body of the flood control dike, and the free end of the inclined impermeable part is a U-shaped structure with an opening at the top; the impermeable wall is inserted into the soil at the bottom of the water-facing side of the impermeable layer, and the free end of the horizontal impermeable part extends out of the bottom of the clay layer and covers the upper part of the impermeable wall.

2. The flood control dike suitable for salt lake areas according to claim 1, characterized in that: A rubber waterstop is provided between the free end of the horizontal seepage prevention section and the water-facing surface of the seepage prevention wall.

3. The flood control dike suitable for salt lake areas according to claim 1, characterized in that: The impermeable wall is a plastic steel plate and its bottom extends into the impermeable soil layer of the soil body.

4. The flood control dike suitable for salt lake areas according to claim 1, characterized in that: The slope of the main body of the flood control dike on the water-facing side is 1:2, and the slope of the backwater side is 1:2; the slope of the clay layer on the water-facing side is 1:

3.

5. The flood control dike suitable for salt lake areas according to claim 1, characterized in that: The impermeable layer is a double-textured HDPE membrane.

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