Flood bank for water conservancy project

Abstract

The flood bank for the water conservancy project comprises a weir body and a protection structure arranged on the slope face of the weir body, the protection structure comprises a cushion base layer, a gabion net layer and a reinforcing layer which are laid from bottom to top in sequence, and a plurality of greening layers which are distributed in a rectangular array mode and embedded in the gabion net layer. The gabion net layer is composed of a plurality of longitudinal gabion nets and a plurality of transverse gabion nets, the longitudinal gabion nets and the transverse gabion nets are distributed in a rectangular array mode, the longitudinal gabion nets and the transverse gabion nets are perpendicularly staggered, and any two adjacent longitudinal gabion nets and any two adjacent transverse gabion nets define a containing cavity for laying of the greening layer. The utility model relates to the technical field of hydraulic engineering. According to the flood bank for the water conservancy project, the laying layout of an existing gabion net protection slope is optimized, gabion nets are laid in a latticed and staggered mode, and areas capable of being covered by vegetation are reserved between gabion net layers, so that the greening effect and the attractiveness are guaranteed, and meanwhile ecological balance construction of the slope surface is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a flood control embankment for water conservancy projects. Background Art

[0002] After searching, the Chinese patent with announcement number CN220767914U discloses a flood control dam for water conservancy projects, including a dam body and a protective mechanism, a water-repellent plate is arranged on the inner side of the dam body, a checkered slope protection is fixedly installed on one side of the dam body, and a protective mechanism is arranged on one side of the checkered slope protection. The flood control dam for water conservancy projects is provided with a main keel, expansion screws, secondary keels, bolts, nuts and gabion nets, the main keel and the checkered slope protection are fixedly connected with expansion screws, and locked and fixed by nuts, and its service life is relatively long, the keel and the gabion net play a good protective role on the dam body, can reduce soil erosion, prevent the collapse of the dam body, etc., through the provision of waterproof coating and checkered slope protection, the waterproof coating can prevent water from entering the dam body, causing the dam structure to be unstable, and the checkered slope protection improves the impact resistance and tensile strength of the dam body.

[0003] The flood dam used in this water conservancy project has at least the following problems: the current method of laying gabions along the slope of the flood dam, i.e. gabion slope protection, has significant advantages in flood control projects, such as strong anti-scouring and anti-wear performance. However, in actual applications, when gabions are used on a large scale for flood dam construction, the subsequent maintenance cost is relatively high. At the same time, the gabion slope protection structure has a certain inhibitory effect on plant growth, resulting in a low vegetation coverage on the slope, which not only affects the appearance of the flood dam, but may also have a certain impact on the ecological balance of the slope. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the prior art flood control dams for water conservancy projects, provides a flood control dam for water conservancy projects, and solves the problems of high maintenance cost of the existing gabion mesh slope protection and low vegetation coverage on the slope.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the utility model is a flood control embankment for water conservancy projects, including a weir body and a protective structure arranged on the slope of the weir body, the protective structure including a cushion base layer, a gabion mesh layer and a reinforcement layer laid in sequence from bottom to top, and a plurality of greening layers distributed in a rectangular array and embedded in the gabion mesh layer, the gabion mesh layer is composed of a plurality of longitudinal gabions and a plurality of transverse gabions distributed in a rectangular array, the plurality of longitudinal gabions and the plurality of transverse gabions are vertically staggered with each other, and any two adjacent longitudinal gabions and two transverse gabions enclose a containing cavity for laying the greening layer.

[0006] Preferably, the cushion layer is composed of a gravel layer, a three-dimensional geogrid, and a cultivated soil layer laid in sequence from bottom to top. Among them, the gravel layer is composed of compacted gravel and sand, with high strength and durability. In hydraulic engineering, the gravel layer is often used as a filter layer to prevent the soil in the dam or foundation from being carried away by seepage water. At the same time, when water flows through the gravel layer, larger particles will block and filter out fine particles in the water flow, and these fine particles are intercepted in the gravel layer, thus playing a role in purifying water quality. Laying a three-dimensional geogrid on the gravel layer can effectively enhance the stability of the gravel layer laying, preventing it from moving, collapsing, and sliding. At the same time, in cooperation with the cultivated soil covering the top of the three-dimensional geogrid and the greening layer laid on the cultivated soil, the vegetation and the three-dimensional geogrid pad work together to form a soil-fixing and greening system.

[0007] Preferably, the reinforcement layer includes a number of longitudinal precast slabs, a number of transverse precast slabs, and a number of cast-in-place concrete columns. The number of longitudinal precast slabs are respectively laid on the tops of a number of longitudinal gabion nets, and the number of transverse precast slabs are respectively laid on the tops of a number of transverse gabion nets, and a formwork erection space for the construction of the cast-in-place concrete columns is reserved between the ends of any two adjacent longitudinal gabion nets and the ends of two transverse gabion nets. Among them, using a number of longitudinal precast slabs, a number of transverse precast slabs, and a number of cast-in-place concrete columns to construct the reinforcement layer can effectively speed up the construction progress. The cast-in-place concrete columns are used for the assembly and docking of the ends of two longitudinally adjacent precast slabs and two transversely adjacent precast slabs in a cross shape. It should be noted that an installation space for embedding the framework of the cast-in-place concrete columns needs to be reserved between the ends of any two longitudinally adjacent gabion nets and the ends of two transversely adjacent gabion nets in a cross shape.

[0008] Preferably, the greening layer is composed of a grass planting layer and grass planting grids laid in sequence from bottom to top. Among them, the grass planting layer can be mixed with vetiver and other auxiliary grasses with relatively developed roots to form a high-density above-ground hedge and an underground high-strength biological wall. The grass planting grids can significantly slow down the water flow speed and disperse the impact force of the water flow on the slope surface, further protecting the soil stability.

[0009] Preferably, a water drainage groove is provided at the top of each of the number of longitudinal precast slabs and the number of cast-in-place concrete columns, and the water drainage grooves are distributed along the inclined direction of the weir body slope surface. Among them, the water drainage grooves form an effective drainage path on the outermost layer of the protection structure.

[0010] Therefore, the utility model has the following beneficial effects: By optimizing the laying layout of the current gabion slope protection, laying the gabion in a grid-like and staggered manner, leaving areas for vegetation coverage between the gabion layers, while ensuring the greening effect and aesthetic appearance, it contributes to the ecological balance construction of the slope. In addition, with the reinforcement layer covering the top of the gabion layer, the structural stability of the gabion layer is optimized. At the same time, the grid structure of the gabion is prevented from being directly exposed, reducing the probability of damage to the gabion caused by external factors and lowering the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a structural schematic diagram of the utility model.

[0012] Figure 2 is a structural schematic diagram of the protection structure of the utility model.

[0013] Figure 3 is a structural schematic diagram of the gabion layer of the utility model.

[0014] Figure 4 is a structural schematic diagram of the reinforcement layer of the utility model.

[0015] Figure 5 is a structural schematic diagram of the water drainage trough of the utility model.

[0016] Figure 6 is a structural schematic diagram of the cushion layer of the utility model.

[0017] Figure 7 is a structural schematic diagram of the greening layer of the utility model.

[0018] In the figure: 100, weir body; 200, protection structure; 210, cushion layer; 220, gabion layer; 230, reinforcement layer; 240, greening layer; 2110, gravel layer; 2120, three-dimensional geogrid; 2130, cultivated soil layer; 2210, longitudinal gabion; 2220, transverse gabion; 2310, longitudinal precast slab; 2320, transverse precast slab; 2330, cast-in-place concrete column; 2340, water drainage trough; 2410, grass planting layer; 2420, grass planting grid. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the utility model in conjunction with the drawings and specific embodiments.

[0020] Please refer to Figures 1-7The utility model provides a technical solution: a flood embankment for water conservancy projects, comprising a weir body 100 and a protective structure 200 arranged on the slope of the weir body 100, the protective structure 200 comprising a cushion base layer 210, a gabion mesh layer 220 and a reinforcement layer 230 laid in sequence from bottom to top, and a plurality of greening layers 240 distributed in a rectangular array and embedded in the gabion mesh layer 220, the gabion mesh layer 220 is composed of a plurality of longitudinal gabions 2210 and a plurality of transverse gabions 2220 all distributed in a rectangular array, the plurality of longitudinal gabions 2210 and the plurality of transverse gabions 2220 are vertically staggered with each other, and any two adjacent longitudinal gabions 2210 and two transverse gabions 2220 enclose a containing cavity for laying the greening layer 240.

[0021] Based on the above-mentioned structural setting, the flood control embankment for water conservancy projects is composed of a weir body 100 and a protective structure 200, wherein the protective structure 200 is laid on the slope of the weir body 100. Specifically, during the construction process, the cushion base layer 210 is first laid on the slope of the weir body 100 to optimize the bottom soil structure to provide good water and soil conservation capabilities, reduce soil erosion and soil erosion, and at the same time, provide a good soil environment for the laying of the greening layer 240 to ensure the greening effect, and then the grid-shaped gabion mesh layer 220 is laid on the cushion base layer 210, such as Figure 3 As shown, a plurality of longitudinal gabions 2210 and a plurality of transverse gabions 2220, which are all distributed in a rectangular array, are laid perpendicularly and staggered to each other, and a receiving cavity for laying a greening layer 240 is reserved between two longitudinal gabions 2210 and two transverse gabions 2220 that are arbitrarily arranged adjacent to each other in a square shape, and then a reinforcement layer 230 is laid on the top of the gabion layer 220. The reinforcement layer 230 is mainly constructed of concrete. A layer of concrete with a thickness of 5 to 10 cm is constructed on the top of the gabion layer 220, which can enhance the stability and durability of the gabion layer 220, help ensure the overall stability of the structure of the gabion layer 220, and improve its ability to resist external scouring and erosion. The corresponding reinforcement layer A square hole matching the accommodating cavity needs to be reserved between 230, and finally the greening layer 240 is laid in the reserved accommodating cavities. The flood control embankment of the water conservancy project optimizes the laying layout of the existing gabion mesh slope protection, lays the gabions in a grid-like staggered manner, and reserves areas for vegetation coverage between the gabion mesh layers 220. While ensuring the greening effect and aesthetics, it helps to build an ecological balance on the slope. In addition, with the reinforcement layer 230 covering the top of the gabion mesh layer 220, the structural stability of the gabion mesh layer 220 is optimized. At the same time, the grid structure of the gabion mesh is avoided from being directly exposed to the outside, the probability of the gabion mesh being damaged by external factors is reduced, and the maintenance cost is reduced.

[0022] Further, the cushion layer 210 is formed by laying a gravel layer 2110, a three-dimensional geogrid 2120, and a cultivated soil layer 2130 in sequence from bottom to top.

[0023] Further, the reinforcement layer 230 includes a plurality of longitudinal precast slabs 2310, a plurality of transverse precast slabs 2320, and a plurality of cast-in-place concrete columns 2330. The plurality of longitudinal precast slabs 2310 are respectively laid on the tops of the plurality of longitudinal gabion meshes 2210, and the plurality of transverse precast slabs 2320 are respectively laid on the tops of the plurality of transverse gabion meshes 2220. A formwork erection space for the construction of the cast-in-place concrete columns 2330 is reserved between the ends of any two adjacent longitudinal gabion meshes 2210 and the ends of the two transverse gabion meshes 2220.

[0024] Further, the greening layer 240 is composed of a grass planting layer 2410 and grass planting grids 2420 laid in sequence from bottom to top.

[0025] Further, drain grooves 2340 are formed on the tops of the plurality of longitudinal precast slabs 2310 and the plurality of cast-in-place concrete columns 2330, and are distributed along the slope direction of the weir body 100.

[0026] The above-described embodiments are only a preferred solution of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A flood control dike for water conservancy projects, characterized in that, It includes a weir body (100) and a protection structure (200) arranged on the slope surface of the weir body (100); the protection structure (200) includes a cushion layer (210), a gabion mesh layer (220), and a reinforcement layer (230) laid successively from bottom to top, and several greening layers (240) embedded in the gabion mesh layer (220) and distributed in a rectangular array. The gabion mesh layer (220) is composed of several longitudinal gabion meshes (2210) and several transverse gabion meshes (2220) both distributed in a rectangular array. The several longitudinal gabion meshes (2210) and several transverse gabion meshes (2220) are vertically and crosswise interlaced with each other, and an accommodation cavity for laying the greening layer (240) is formed by enclosing any adjacent two longitudinal gabion meshes (2210) and two transverse gabion meshes (2220).

2. The flood control dike for a water conservancy project according to claim 1, wherein The cushion layer (210) is laid by successively laying a gravel layer (2110), a three-dimensional geogrid (2120), and a cultivated soil layer (2130) from bottom to top.

3. A flood control dike for water conservancy projects according to claim 1, characterized in that, The reinforcement layer (230) includes several longitudinal precast slabs (2310), several transverse precast slabs (2320), and several cast-in-place concrete columns (2330). The several longitudinal precast slabs (2310) are respectively covered and laid on the tops of the several longitudinal gabion meshes (2210), and the several transverse precast slabs (2320) are respectively covered and laid on the tops of the several transverse gabion meshes (2220). And a formwork erection space for constructing the cast-in-place concrete columns (2330) is reserved between the ends of any adjacent two longitudinal gabion meshes (2210) and the ends of two transverse gabion meshes (2220).

4. A flood control dike for water conservancy projects according to claim 1, characterized in that, The greening layer (240) is composed of a grass planting layer (2410) and a grass planting grid (2420) laid successively from bottom to top.

5. A flood control dike for water conservancy projects according to claim 3, characterized in that, Several longitudinal precast slabs (2310) and several cast-in-place concrete columns (2330) are both provided with water discharge grooves (2340) distributed along the inclination direction of the slope surface of the weir body (100) at their tops.

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