Anti-scouring side slope structure for river channel

Abstract

The utility model relates to the technical field of riverway slope protection construction, in particular to an anti-scouring slope structure for a riverway, which comprises a slope surface and a slope toe, the slope toe comprises an underground tunnel, and a plurality of reinforced gabion nets are arranged in the underground tunnel; and more than one layer of anti-seepage geotechnical cloth is mounted on the outer side of the reinforced gabion net. The anti-seepage geotechnical cloth can prevent water flow from permeating and block water flow and mud and sand, and then the phenomenon that quicksand is accumulated on the downstream face of the reinforced gabion net is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of river channel slope protection construction, in particular to a river channel anti-scouring slope structure. Background Art

[0002] River slope protection projects are very important. The projects of river slope protection projects include river slope structures. River slope structures can protect the embankment from the invasion and erosion of wind and waves and water flow, while ensuring that the lives of nearby residents are not disturbed by the river.

[0003] The river slope structure includes the slope surface and the slope foot. At present, the slope foot is mostly made of reinforced gabions filled with stones to prevent scouring by waves and water flow. However, the gaps between the stones are large and cannot prevent the passage of quicksand. When the river scours and the water flow lasts for a long time, quicksand will accumulate on the back of the reinforced gabions. Utility Model Content

[0004] The utility model provides an anti-scouring slope structure for a river channel, which can prevent quicksand from accumulating on the back surface of the water after the steel bar gabion mesh is scoured for a long time.

[0005] To solve the above technical problems, the utility model is implemented through the following technical solutions: a river channel anti-scour slope structure, including a slope foot, the slope foot includes a plurality of reinforced gabion meshes; the surface of the reinforced gabion meshes is wrapped with one or more layers of anti-seepage geotextile.

[0006] Furthermore, the slope foot also includes a tunnel, and the steel bar gabion mesh is placed in the tunnel.

[0007] Preferably, the reinforced gabion mesh is a rectangular parallelepiped structure; the reinforced gabion mesh includes main bars and secondary bars; the main bars constitute the edges of the reinforced gabion mesh, and the secondary bars welded to the main bars constitute the surfaces of the reinforced gabion mesh.

[0008] Preferably, the diameter of the main rib is greater than the diameter of the secondary rib.

[0009] Furthermore, it also includes a slope surface, which includes a frame space and a plant fiber blanket; the frame space is formed by cross-welding a plurality of frame beams, and the plant fiber blanket is laid in each frame space.

[0010] Furthermore, a drainage hole is provided in the frame space, a drainage pipe is installed inside the slope, and the drainage hole is connected to the drainage pipe.

[0011] Furthermore, positioning anchor rods are provided at the intersection positions of the frame beams, and the positioning anchor rods are inserted into the inside of the slope surface.

[0012] Furthermore, a drainage ditch is provided at the bottom of the slope.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects: the surface of the reinforced gabion mesh is wrapped with one or more layers of anti-seepage geotextiles, which can prevent water from penetrating and block water and mud, thereby avoiding the accumulation of quicksand on the back surface of the reinforced gabion mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the slope foot structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the reinforced gabion mesh of the utility model.

[0016] Figure 3 It is the front view of the slope of the utility model.

[0017] Figure 4 It is a cross-sectional view of the slope side of the utility model.

[0018] The meanings of the numbers in the figure are: 1-tunnel, 2-reinforced gabion mesh, 21-main reinforcement, 22-secondary reinforcement, 3-anti-seepage geotextile, 4-lattice beam, 5-plant fiber blanket, 6-drainage hole, 7-drainage pipe, 8-drainage ditch, 9-positioning anchor. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0020] like Figure 1 As shown, a river channel anti-scouring slope structure includes a slope foot, and the slope foot includes a plurality of steel gabions 2, and the surface of the steel gabions 2 is wrapped with a layer of anti-seepage geotextile 3. The anti-seepage geotextile 3 covers the surface of the steel gabion 2, and uses its own waterproof and isolation functions to block the silt and other objects in the water flow. The steel gabion 2 itself has enough weight to sink to the slope foot, forming a barrier to the water flow, and preventing the scouring of the slope foot by waves and water flow; the problem that the traditional steel gabion 2 is difficult to block silt is solved by the isolation characteristics of the anti-seepage geotextile 3, avoiding the problem of silt accumulation on the back of the steel gabion 2 during the scouring process.

[0021] The foot of the slope also includes a tunnel 1, in which the steel gabion mesh 2 is placed and backfilled with the original soil when the tunnel 1 is excavated. The tunnel 1 and the backfill of the original soil increase the stability of the steel gabion mesh 2, which is not easily displaced by the impact of water flow.

[0022] like Figure 2As shown, the steel gabion mesh 2 is a rectangular parallelepiped structure. The steel gabion mesh 2 includes main bars 21 and secondary bars 22; the main bars 21 form the edges of the steel gabion mesh 2 and form the main frame of the steel gabion mesh 2; the secondary bars 22 cross-welded on the main bars 21 form the various surfaces of the steel gabion mesh 2. The anti-seepage geotextile 3 is installed on the main bars 21 and the secondary bars 22. The main bars 21 are the main support of the steel gabion mesh 2, and the function of the secondary bars 22 is to support the anti-seepage geotextile 3 at the side of the steel gabion mesh 2. Avoid the damage of the anti-seepage geotextile 3 caused by the large space at the side of the steel gabion mesh 2 during water scouring.

[0023] Preferably, the diameter of the main reinforcement 21 is greater than the diameter of the secondary reinforcement 22. The main reinforcement 21 is the main supporting structure of the reinforced gabion mesh 2, and the collision of the reinforced gabion mesh 2 at the slope foot is mainly borne by the main reinforcement 21, so a steel bar with a larger diameter is selected. The secondary reinforcement 22 supports the anti-seepage geotextile 3, and the required strength is lower than that of the main reinforcement 21, so a steel bar with a smaller diameter is selected to save materials.

[0024] like Figure 3 As shown, the slope includes a grid space and a plant fiber blanket 5. The grid space is formed by cross-welding of multiple grid beams 4, and the plant fiber blanket 5 is laid in each grid space. The function of the plant fiber blanket 5 is to reduce the situation where the soil is driven by rainwater. Secondly, the plant fiber blanket 5 is not laid in a whole piece, but multiple plant fiber blankets 5 of the size of the grid space are laid on the grid space respectively. If the plant fiber blanket 5 is accidentally damaged during use, the repair work can be completed by replacing the plant fiber blanket 5 in the corresponding area. Compared with the overall laying, the repair cost is lower. And the plant fiber blanket 5 enables the vegetation to grow rapidly and consolidates the loss of soil inside the slope.

[0025] like Figure 4 As shown, a drainage hole 6 is provided in the frame space, a drainage pipe 7 is installed inside the slope, and the drainage hole 6 is connected to the drainage pipe 7. One end of the drainage pipe 7 inside the slope is higher than the end of the drainage pipe 7 connected to the drainage hole 6, and the drainage hole 6 is used to guide the water inside the slope from the drainage pipe 7 to the drainage hole 6 for drainage.

[0026] Furthermore, a positioning anchor rod 9 is provided at the intersection of the frame beam 4, and the positioning anchor rod 9 is inserted into the inside of the slope surface. The positioning anchor rod 9 is used to reinforce the strength of the frame beam 4 on the slope surface, and the positioning anchor rod 9 provides sufficient anti-slip force, improves the shear strength on the potential sliding surface, and effectively prevents the displacement of the slope surface.

[0027] A drainage ditch 8 is provided at the bottom of the slope surface, and the drainage ditch 8 guides and discharges rainwater on the slope surface and water discharged from the drainage hole 6.

[0028] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0029] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A river channel anti-scour slope structure, comprising a slope foot, wherein the slope foot comprises a plurality of reinforced gabion meshes (2), characterized in that: The surface of the steel gabion mesh (2) is wrapped with one or more layers of anti-seepage geotextile (3); The slope foot also includes a tunnel (1), and the steel bar gabion mesh (2) is placed in the tunnel (1).

2. The anti-scour slope structure for a river channel according to claim 1, characterized in that: The reinforced gabion mesh (2) is a rectangular parallelepiped structure; the reinforced gabion mesh (2) comprises main bars (21) and secondary bars (22); the main bars (21) constitute the edges of the reinforced gabion mesh (2), and the secondary bars (22) welded to the main bars (21) constitute the surfaces of the reinforced gabion mesh (2).

3. The anti-scour slope structure for a river channel according to claim 2, characterized in that: The diameter of the main rib (21) is greater than the diameter of the secondary rib (22).

4. The anti-scour slope structure for a river channel according to claim 1, characterized in that: It also includes a slope surface, which includes a grid space and a plant fiber blanket (5); the grid space is formed by cross-welding a plurality of grid beams (4), and the plant fiber blanket (5) is laid in each grid space.

5. The anti-scour slope structure for a river channel according to claim 4, characterized in that: A drainage hole (6) is provided in the frame space, a drainage pipe (7) is installed inside the slope surface, and the drainage hole (6) is connected to the drainage pipe (7).

6. The anti-scour slope structure for a river channel according to claim 4, characterized in that: Positioning anchor rods (9) are provided at the intersection positions of the lattice beams (4), and the positioning anchor rods (9) are inserted into the interior of the slope surface.

7. The anti-scour slope structure for a river channel according to claim 4, characterized in that: A drainage ditch (8) is provided at the bottom of the slope.

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