Protective structure for treating erosion gully head by using bee grid

Abstract

The utility model relates to a protection structure for treating an erosion gully head through a bee grid, and belongs to the technical field of erosion gully protection of slope protection. Comprising a ditch head, a side slope and a ditch bottom, the ditch head is trimmed to be fan-shaped and comprises a ditch head protection outlet, and fan-shaped bee grids are laid along the surface layer of the ditch head, anchored and filled with original soil or blended into viscous original soil; the stepped stilling drainage structure is arranged at the bottom of the gutter head protection outlet, bee grids are filled with original soil, the original soil is compacted layer by layer and stacked in a staggered mode, geotechnical cloth is laid between two to five layers, and anti-corrosion pine piles are longitudinally connected in series and anchored. The top bee grid can be filled with soil and then covered with a layer of geotextile or stone for filling. The method has the advantages that the bee grid is light and convenient to carry and construct, local materials can be used as filler, and the transportation cost is reduced; (2) the amount of sediment flowing into the downstream is reduced, and the ditch bottom is leveled and stepped section by section; and (3) a flexible integrated surface soil reinforced structure protects the ditch head from continuous erosion and keeps water and soil.

Description

Technical Field

[0001] The utility model relates to a protective structure for treating the head of an erosion ditch by using a honeycomb grid, and belongs to the technical field of erosion ditch protection of slope protection. Background Art

[0002] At present, in the treatment of erosion gullies, a large number of gabions are generally used in the design of gully head protection. First, it is costly and not environmentally friendly. Second, erosion occurs due to the poor integration between the gabion boundary and the slope, resulting in soil loss, water diversion or soil loss under the net, forming gabion collapse. Utility Model Content

[0003] The purpose of the utility model is to provide a protective structure for treating the head of an erosion ditch using a honeycomb grid. The utility model is to trace the erosion phenomenon to the source and provide a new protective method using a honeycomb grid for treating the head of an erosion ditch, so that the ditch head can stop cutting down and expanding due to erosion, thereby achieving the purpose of treating the ditch head and overcoming the shortcomings of the prior art.

[0004] The utility model is realized by the following technical scheme, including a ditch head, a side slope and a ditch bottom, the ditch head is trimmed into a fan shape, including a ditch head protection outlet, a fan-shaped honeycomb grid is laid along the surface of the ditch head and anchored with anchor piles, and filled with original soil or prepared into viscous original soil;

[0005] It also includes a stepped force dissipation drainage structure set at the bottom of the ditch head protection outlet, which is filled with original soil and compacted by honeycomb grids, stacked layer by layer or staggered, and geotextiles are laid between two to five layers, and are anchored by anti-corrosion pine wood piles in the vertical direction. After the top honeycomb grid is filled with soil, a layer of geotextile or stone filling is laid.

[0006] It also includes an energy dissipation pool at the bottom of the ditch head protection outlet, which is formed by connecting the four sides of the honeycomb grid end to end and stacking them layer by layer at the bottom of the ditch head protection outlet to form a hollow pool for reducing water flow rate and settling sediment;

[0007] The double-sided slopes are trimmed vertically and the ditch bottom is leveled and compacted.

[0008] The four honeycomb grids on each layer of the stilling pool are connected to form a rectangle;

[0009] The honeycomb grid parallel to the slope is staggered layer by layer from the inside to the outside and embedded in the slope;

[0010] The honeycomb grid perpendicular to the slope decreases from bottom to top, in steps or vertical stacking.

[0011] The height of the ditch head is lower than the slope.

[0012] The beneficial effects of the utility model are:

[0013] [1] Honeycomb grid is light and easy to carry and construct, and the filler can be made from local materials, which reduces transportation costs;

[0014] [2] Reduce the amount of sediment flowing into the downstream, so that the ditch bottom is gradually terraced;

[0015] [3] The flexible integrated topsoil reinforcement structure protects the ditch head to prevent further erosion and conserve water and soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of one structure of the utility model.

[0017] Figure 2 for Figure 1 Side schematic diagram of .

[0018] Figure 3 This is a second schematic diagram of the structure of the utility model.

[0019] Figure 4 for Figure 3 Side schematic diagram of .

[0020] Figure 5 This is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. 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 utility model; in addition, the technical features involved in the different implementation methods of the utility model described below can be combined with each other as long as they do not conflict with each other. The following will refer to the attached Figures 1 to 5 The utility model is described in more detail.

[0022] The protective structure of the gully head is divided into the following three coping methods according to the actual working conditions of the gully. The phenomenon of gully head erosion can be solved by using these three methods or a combination of them, which can not only ensure the restoration of the gully head while taking into account the ecological restoration of the vegetation around the gully head.

[0023] The utility model comprises a ditch head 1, a side slope 2 and a ditch bottom 3, and the ditch head 1 is trimmed into a fan shape.

[0024] Embodiment 1: When the ditch head 1 of the erosion ditch is small in area and has no large drop, or is in the initial stage and just begins to show erosion, the honeycomb grid 4 is used for flat treatment at the ditch head 1, that is, the ditch head 1 of the erosion ditch is trimmed into a fan shape, and the honeycomb grid 4 is laid and anchored in the fan shape. Anchors or anchor piles are selected according to actual conditions, and the cell is filled with original soil or original soil is mixed and cemented, and it is ensured that the top of the ditch head 1 must be lower than the surrounding ground to facilitate the surrounding water flow to flow into the ditch head 1. The ditch head protection outlet 10 is level with the drainage line of the ditch bottom 3, otherwise a "hanging water leak" will occur, aggravating the ditch bottom erosion.

[0025] It includes a trench head protection outlet 10, which is composed of a fan-shaped honeycomb grid 4 laid along the surface of the trench head 1 and anchored with anchor piles, filled with original soil or original soil mixed with adhesive and solidified. Figures 1 to 2 .

[0026] Embodiment 2: When a large drop appears in the ditch head 1 of the erosion ditch or it is in the middle or late stage of erosion, a ditch head protection outlet 10 and a stepped energy dissipation drainage structure 20 are used at the ditch head 1, and a honeycomb grid 4 is used for flat treatment at the ditch head 1, that is, the ditch head 1 of the erosion ditch is trimmed into a fan shape, and the honeycomb grid 4 is laid and anchored in the shape of the fan. Anti-corrosion anchor drills or anti-corrosion anchor piles can be selected according to actual conditions, and the cell is filled with original soil or original soil is mixed and cemented, and it is ensured that the top of the ditch head 1 must be lower than the surrounding ground to facilitate the surrounding water flow into the ditch head.

[0027] It also includes a stepped energy dissipation drainage ditch 20 arranged at the bottom of the ditch head protection outlet 10, which is filled with original soil and compacted by honeycomb grids 4, and is stacked layer by layer and staggered, and geotextiles 5 are laid between two to five layers, and are longitudinally connected and anchored by anti-corrosion pine wood piles. The top honeycomb grid 4 can be filled with soil and then covered with a layer of geotextile 5 or filled with stones.

[0028] During construction, the bottom is dug according to the drop of the scouring of the ditch head 1, and the length of each layer of honeycomb grid 4 reduced in the direction of the incoming water is set according to the settlement ratio of the ditch bottom 3; finally, the ditch head protection outlet 10 is ensured to overlap with the top edge of the stepped energy dissipation drainage structure 20, so that the incoming water is promptly and quickly discharged into the ditch bottom 3. By using the honeycomb grid 4 to protect the ditch head 1, this new type of protection method can not only effectively prevent the ditch head 1 from continuing to go back to the source erosion, but also slow down the water flow speed, deposit the sediment in the water flow, raise the ditch bottom erosion base point, and prevent the ditch bottom 3 from continuing to cut down and the slope 2 from expanding, and make the slope of the erosion channel slow down.

[0029] Embodiment 3: When the erosion range of the gully head 1 of the erosion gully is large and the area is wide, an energy dissipation pool 30 is set for protection.

[0030] The energy dissipation pool 30 is arranged at the bottom of the ditch head protection outlet 10, and is formed by the honeycomb grid 4 connected end to end and stacked layer by layer at the bottom of the ditch head protection outlet 10 to form a hollow pool for reducing water flow rate and settling sediment;

[0031] Double-sided slope 2 trimming, ditch bottom 3 leveling and compacting, see attached Figure 5 .

[0032] A geotextile 5 is fully spread on the bottom of the ditch 3, and a honeycomb grid 4 is used as the foundation of the energy dissipation pool 30. The cells are filled with coarse sand, original soil, gravel, etc. and compacted. The exposed area in the center of the energy dissipation pool 30 is hardened to increase the bearing capacity and impact resistance of the bottom of the energy dissipation pool 30.

[0033] The four honeycomb grids 4 of each layer of the stilling pool 30 are connected to each other to form a rectangle;

[0034] The honeycomb grid 4 parallel to the slope 2 is staggered layer by layer from the inside to the outside and embedded in the slope;

[0035] The honeycomb grids 4 perpendicular to the slope 2 decrease from bottom to top, and are stepped or vertically stacked.

[0036] During construction, a geotextile 5 is laid upwards every two to five layers of honeycomb grids 4 and anchored with anchor rods to fill the original soil and compact it to the designed height. Through this energy dissipation pool 30 with honeycomb grids 4 stacked, the downstream rapid flow can be quickly turned into a slow flow, the water flow speed can be reduced, the sediment can be precipitated, the water potential can be reduced, and the scouring of the ditch head can be reduced.

[0037] The height of the ditch head 1 is lower than the slope 2.

[0038] 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 head of an eroded gully using a honeycomb grid, comprising a gully head, a side slope and a gully bottom, wherein the gully head is trimmed into a fan shape, and characterized in that: It includes a trench head protection outlet, which is made of a fan-shaped honeycomb grid laid along the trench head surface and anchored with anchor piles; It also includes a stepped energy dissipation and drainage structure set at the bottom of the ditch head protection outlet, which is filled with original soil compacted by honeycomb grids and stacked layer by layer or staggered, and geotextiles are laid in two to five layers, and are anchored longitudinally by anti-corrosion pine piles; after the top layer of honeycomb grid is filled with soil, it is covered with a layer of geotextile or filled with stones.

2. A protective structure for treating erosion gully heads using a honeycomb grid according to claim 1, characterized in that: It also includes an energy dissipation pool, which is formed by connecting the four sides of the honeycomb grid end to end and stacking them in staggered layers at the bottom of the ditch head protective outlet, forming a hollow pool that reduces water flow rate and settles sediment.

3. A protective structure for treating erosion gully heads using a honeycomb grid according to claim 2, characterized in that: The four honeycomb grids on each layer of the stilling pool are connected to form a rectangle; The honeycomb grid parallel to the slope is staggered layer by layer from the inside to the outside and embedded in the slope; The honeycomb grid perpendicular to the slope decreases from bottom to top, in steps or vertical stacking.

4. The protective structure for treating erosion gully heads using a honeycomb grid according to claim 1, characterized in that: The height of the ditch head is lower than the slope.

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