Protective structure for treating undercut of erosion ditch bottom by using bee grid

Abstract

The utility model relates to a protective structure for treating the undercut of an erosion gully by using a bee grid, and belongs to the technical field of erosion gully protection. Comprising an ecological retaining wall and a check dam retaining wall. The check dam retaining wall is transversely arranged at the ditch bottom along the upstream face, the ecological retaining wall is arranged along the slope toe, and the check dam retaining wall and the ecological retaining wall are connected into a whole. A vertical clamping groove is formed in the slope toe of the side slope, and the two ends of the check dam retaining wall are embedded into the clamping groove. The check dam retaining wall is of a multi-layer strip-shaped structure formed by arranging small cells and large cells at intervals, and the small cells are arranged at the two ends of the check dam retaining wall. The ecological retaining wall is of a strip-shaped structure formed by arranging small cells and large cells at intervals, and the small cells are arranged at the two ends of the ecological retaining wall. The method has the advantages that the ecological retaining wall and the channel check dam retaining wall are light and easy to construct, local materials are used as filler, and the transportation cost is reduced; 2, the amount of silt flowing into the downstream is reduced, so that the ditch bottom is leveled and stepped section by section, and conditions are created for utilizing ditch land; 3, the channel is protected in a segmented manner to prevent continuous erosion, and water and soil are kept;

Description

Technical Field

[0001] The utility model relates to a protective structure for processing the undercut of an erosion gully bottom by using a honeycomb grid, and belongs to the technical field of erosion gully protection. Background Art

[0002] At present, the main reasons for the formation of gully bottom cutting disasters are: concentrated rainfall in the rainy season, a large amount of rainwater gathers in a short period of time, the flow rate, flow velocity and scouring force increase, and a strong lateral shear force is generated on the slope foot and slope body, and a large amount of sediment is carried down, causing serious soil and water loss; then the surface vegetation is destroyed, the water storage capacity is weakened, and the surface anti-scouring ability and gully bank protection capacity are reduced. Due to the increase in the convergence flow and flow peak in the gully, the scouring of the water flow increases, causing the gully bottom to cut, accelerating the degree of erosion and damage at the gully bottom. Utility Model Content

[0003] The utility model aims to provide a protective structure for treating the undercutting of erosion gullies by using honeycomb grids, so as to provide a new form of protective method for treating the erosion gullies with the undercutting phenomenon, thereby overcoming the shortcomings of the prior art.

[0004] The technical principle of the utility model is to reduce the water velocity of the erosion ditch with a large drop step by step, raise the ditch bottom by depositing sediment, prevent the ditch bottom from being cut, and thus achieve the purpose of regulating the ditch bottom.

[0005] The technical solution of the utility model is that it includes the bottom and slope of the ditch, and also includes an ecological retaining wall and a valley retaining wall;

[0006] The gully retaining wall is horizontally set at the bottom of the ditch along the water-facing surface, and the ecological retaining wall is set along the foot of the slope. The gully retaining wall and the ecological retaining wall are connected to form a whole;

[0007] A vertical slot is set at the foot of the slope, and both ends of the valley retaining wall are embedded in the slot;

[0008] The valley retaining wall is a multi-layer strip structure with small cells and large cells arranged alternately. The two ends of the valley retaining wall are small cells, and anchor piles are filled in the small cells and anchored into the bottom of the ditch.

[0009] The ecological retaining wall is a strip-like structure with small cells and large cells arranged alternately. The two ends of the ecological retaining wall are small cells, and anchor piles are filled in the small cells and anchored into the bottom of the ditch.

[0010] The large and small cells are formed by welding paired sheets. The appearance of the sheets forms arc-shaped wavy patterns with different sizes. The small arcs of the two sheets form the small cell, and the large arcs of the two sheets form the large cell. At the intersection of the two layers of large cells, they form a concave structure with a small cell in the middle.

[0011] A connection hole is also provided at the connecting edge of the Gufang retaining wall and the ecological retaining wall, which is then fixed by a bolt structure passing through the connection hole.

[0012] The height of single-layer ecological retaining wall and single-layer Gufang retaining wall ranges from 20cm to 100cm.

[0013] The diameter of the small cell ranges from 5 cm to 35 cm, and the diameter of the large cell ranges from 40 cm to 100 cm.

[0014] The beneficial effects of the utility model are:

[0015] [1] Ecological retaining walls and gully retaining walls are light and easy to transport and construct, and the fillers can be sourced locally, reducing transportation costs.

[0016] [2] Reduce the amount of sediment flowing into the downstream, so that the ditch bottom is gradually terraced, creating conditions for the utilization of ditch land;

[0017] [3] Protect the ditch in sections to prevent further erosion and conserve water and soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a first embodiment of the structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the enlarged structure of the slope foot.

[0020] Figure 3 This is a schematic diagram of the second structural embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is a detailed description of the present invention in conjunction with the specific implementation methods and with reference to the attached drawings. Figure 1 , further describing the present invention in detail. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention; in addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Figures 1 to 3 The utility model is described in more detail.

[0022] The utility model selects a relatively narrow position of the ditch 1 of the erosion ditch to set up the valley retaining wall 2. By using the ecological retaining wall 3 and the valley retaining wall 2 to protect the ditch bottom from cutting, this new type of protection method can not only ensure the blocking of water flow speed, deposit the sediment in the water flow, raise the ditch bottom erosion base point to effectively prevent the ditch bottom from cutting, but also prevent the slope from gradually expanding due to soil erosion caused by the ditch bottom cutting. It includes the ditch bottom 11 and the slope 12 of the ditch 1, and also includes the ecological retaining wall 3 and the valley retaining wall 2; the valley retaining wall 2 is horizontally arranged at the ditch bottom 11 along the water-facing surface, the ecological retaining wall 3 is arranged along the foot of the slope 12, and the valley retaining wall 2 and the ecological retaining wall 3 are connected to form a whole; by opening a connection hole at the connection edge of the valley retaining wall 2 and the ecological retaining wall 3, and then fixing it with a bolt structure 4 penetrated in the connection hole, the structural stability is increased. During the specific construction, the number of the valley retaining wall 2 and the ecological retaining wall 3 is set according to the actual situation of the ditch.

[0023] A vertical groove 121 is provided at the foot of the slope 12, and both ends of the valley retaining wall 2 are embedded in the groove 121; and the groove 121 is flush with the actual bottom position of the ditch bottom 11 and compacted to serve as the base surface;

[0024] The valley retaining wall 2 is a multi-layer strip structure with small cells and large cells arranged alternately. The two ends of the valley retaining wall 2 are small cells, and anchor piles 5 are filled in the small cells and anchored into the ditch bottom 11;

[0025] The ecological retaining wall 3 is a strip-shaped structure in which small cells and large cells are arranged alternately. The two ends of the ecological retaining wall 3 are small cells. Anchor piles 5 are filled in the small cells and anchored into the ditch bottom 11.

[0026] The large and small cells are formed by welding a pair of sheets. The appearance of the sheets forms arc-shaped wavy patterns with different sizes. The small arcs of the two sheets form the small cells, and the large arcs of the two sheets form the large cells. At the intersection of the two layers of large cells, a concave structure 21 is formed to avoid interference and form a small cell in the middle.

[0027] The height range of the single-layer ecological retaining wall 3 and the single-layer valley retaining wall 2 is 20 cm to 100 cm.

[0028] The diameter of the small cell ranges from 5 cm to 35 cm, and the diameter of the large cell ranges from 40 cm to 100 cm.

[0029] Example 1, during construction, refer to the attached Figure 1 , 2The ecological retaining wall 3 is formed by two wide sheets through ultrasonic welding to form a strip-like structure with small cells and large cells arranged at intervals and small cells at both ends; the small cell at the end of the valley retaining wall 2 is inserted into the slot 121 of the slope 12, and the anchor piles 5 are filled in the small cell and anchored into the ditch bottom 11, and the large cell is filled with original soil and compacted; according to the design height or the peak water level height of the rainy season, the valley retaining wall 2 can be widened and heightened, that is, the number of welded cell sheets is increased, and the number of layers of the valley retaining wall 2 is increased; as the number of layers of the valley retaining wall 2 increases upward, the width of the upper layer is gradually smaller than the width of the lower layer.

[0030] Dig to the solid bottom at the foot of the slope 12 on both sides of the front and rear sides of the Gufang retaining wall 2, and set a connecting hole at the junction of the connecting edge between the starting end of the ecological retaining wall 3 and the Gufang retaining wall 2. The two are connected by a bolt structure 4 to become one. The small cell at the end is anchored with an anchor pile 5, and the large cell is expanded and filled with original soil and compacted until the small cell at the end is anchored. The ecological retaining wall 3 can also increase the number of layers upward according to the design height, and the upper layer is gradually smaller than the width of the lower layer.

[0031] The waterfall area is formed between the backwater side of the Gufang retaining wall 2 and the ecological retaining wall 3. Geotextile is laid at the bottom of the ditch in the waterfall area and then the honeycomb grid is laid and anchored with anchor piles. Stones or gravel are thrown into the cells to fill them or concrete is hardened at the bottom of the ditch. These methods can reduce the erosion of the ditch bottom by the waterfall.

[0032] After all the anchor piles 5 are anchored, the side walls of the small cells are fixed to the anchor piles 5 using anti-corrosion self-tapping screws.

[0033] After the ecological retaining wall 3 and the valley retaining wall 2 are anchored and filled and compacted, the exposed areas around them are buried with original soil so that the upper edge is 30 to 50 cm higher than the bottom of the ditch.

[0034] In the large compartments at the top of the ecological retaining wall 3 and the valley retaining wall 2, flower and grass seeds can be sown or willow stakes, willow branches, Amorpha fruticosa or shrub vegetation can be planted, and blocks of stone with a diameter of not less than 15 cm can also be placed.

[0035] Embodiment 2: After digging down the slope at the narrow position of the erosion gully until the bottom is solid and leveled, a layer of geotextile is laid, and then the honeycomb grid is fully laid as the foundation layer of the valley retaining wall 2. The cell is filled with concrete (which needs to solidify for a period of time) or hardened to prevent erosion by falling water. A reservation is made for the position where the valley retaining wall 2 is embedded in the groove 121 of the slope 12, and anchor piles 5 are filled in the small cell and anchored into the ditch bottom 11. The large cell is filled with original soil and compacted. According to the design height or the peak water level height in the rainy season, the valley retaining wall 2 can be widened and heightened, that is, the number of welded cell sheets is increased, and the number of layers of the valley retaining wall 2 is increased. As the number of layers of the valley retaining wall 2 increases upward, the width of the upper layer is gradually smaller than that of the lower layer, see the attached Figure 3 .

[0036] The valley retaining wall 2 and the honeycomb grid are provided with connection holes at the junction of the connection edges, and the two are connected by a bolt structure 4 so as to become one.

[0037] After all the anchor piles 5 are anchored, the side walls of the small cells are fixed to the anchor piles 5 using anti-corrosion self-tapping screws.

[0038] After the valley retaining wall 2 is anchored and filled and compacted, the water-facing area is buried with original soil so that the upper edge is 30 to 50 cm higher than the ditch bottom.

[0039] In the large grid on the top layer of the Gufang retaining wall 2, flower and grass seeds can be sown or willow stakes, willow branches, Amorpha fruticosa or shrub vegetation can be planted, and stones with a diameter of not less than 15 cm can also be placed.

[0040] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A protective structure for treating the undercut of erosion gullies using a honeycomb grid, comprising the bottom and slope of the gully, characterized in that; It also includes ecological retaining walls and valley retaining walls; The gully retaining wall is horizontally set at the bottom of the ditch along the water-facing surface, and the ecological retaining wall is set along the foot of the slope. The gully retaining wall and the ecological retaining wall are connected to form a whole; A vertical slot is set at the foot of the slope, and both ends of the valley retaining wall are embedded in the slot; The valley retaining wall is a multi-layer strip structure with small cells and large cells arranged alternately. The two ends of the valley retaining wall are small cells, and anchor piles are filled in the small cells and anchored into the bottom of the ditch. The ecological retaining wall is a strip-like structure with small cells and large cells arranged alternately. The two ends of the ecological retaining wall are small cells, and anchor piles are filled in the small cells and anchored into the bottom of the ditch.

2. A protective structure for treating the undercut of erosion gullies using a honeycomb grid according to claim 1, characterized in that: The large and small cells are formed by welding paired sheets. The appearance of the sheets forms arc-shaped wavy patterns with different sizes. The small arcs of the two sheets form the small cell, and the large arcs of the two sheets form the large cell. At the intersection of the two layers of large cells, they form a concave structure with a small cell in the middle.

3. A protective structure for treating undercutting of erosion gullies using a honeycomb grid according to claim 1, characterized in that: A connection hole is also provided at the connecting edge of the Gufang retaining wall and the ecological retaining wall, which is then fixed by a bolt structure passing through the connection hole.

4. A protective structure for treating undercutting of erosion gullies using a honeycomb grid according to claim 1, characterized in that: The height of single-layer ecological retaining wall and single-layer Gufang retaining wall ranges from 20cm to 100cm.

5. The protective structure for treating the undercut of erosion gullies by using honeycomb grid according to claim 1, characterized in that: The diameter of the small cells ranges from 5 cm to 35 cm, and the diameter of the large cells ranges from 40 cm to 100 cm.

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