Anti-scouring river bank protection structure

Abstract

The utility model discloses an anti-scouring river bank protection structure, and relates to the technical field of river regulation. The slope protection structure comprises a slope protection body, the slope protection body comprises a foundation layer, the foundation layer is laid on a river bank side slope, the bottommost layer of the foundation layer is a broken stone hardcore, the middle layer of the foundation layer is a gravel layer, and the top layer of the foundation layer is geotechnical cloth; the surface protection layer body covers the foundation layer and is composed of a plurality of prefabricated blocks which are connected with one another, a cavity is formed in each prefabricated block, and the adjacent prefabricated blocks are spliced with one another; the anchoring assembly comprises a plurality of spiral anchor rods and anchoring plates, the spiral anchor rods penetrate through the foundation layer and the surface protection layer body and are firmly connected with river bank soil or rock, and the anchoring plates are tightly attached to the junctions of the adjacent prefabricated blocks through the spiral anchor rods. According to the utility model, the structure of the slope protection is optimized and improved, and the foundation layer and the surface protection layer body are mounted and reinforced through the anchoring components, so that the mounting convenience and the use stability of the slope protection are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to river regulation technical field, especially a kind of anti-scour river bank protection structure. BACKGROUND

[0002] In the natural flow process of river, due to the influence of factors such as water flow speed, flow and seasonal change, erosion phenomenon of river bank often occurs. This erosion not only destroys the original geomorphic structure of river bank, but also causes a series of environmental and social economic problems. For example, river bank erosion may lead to soil erosion, affect soil fertility and reduce agricultural output. Severe erosion may also threaten the life and property safety of surrounding residents, causing house collapse, road damage and other disasters.

[0003] To deal with the problem of river bank erosion, various protective measures have been taken traditionally, mainly including two categories of methods: directly reinforcing river bank and improving water flow conditions. The method of directly reinforcing river bank usually involves using materials such as stones and concrete to build retaining walls or lay out revetments. Although these methods can slow down the erosion rate to some extent, using a large amount of stone or concrete materials for reinforcement not only increases construction cost, but also generates additional cost in transportation and construction process. Moreover, with the passage of time, these hard structures are easily damaged by natural factors and need regular maintenance, increasing long-term management and maintenance cost.

[0004] Therefore, we provide an anti-scour river bank protection structure to solve the above problems. SUMMARY

[0005] The utility model aims at providing an anti-scour river bank protection structure, which solves the problem of complicated installation and short service life of existing river bank anti-scour structure by optimizing the structure and constituent materials of revetment.

[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0007] The utility model is an anti-scour river bank protection structure, which comprises a revetment, and the revetment comprises:

[0008] a foundation layer, which is laid on river bank slope, with gravel cushion layer as the bottom layer, sand and gravel layer as the middle layer and geotextile as the top layer;

[0009] a surface layer body, which is covered on the foundation layer and composed of multiple prefabricated blocks connected with each other, each prefabricated block is provided with a cavity inside, and adjacent prefabricated blocks are spliced with each other;

[0010] Anchoring assembly comprising a plurality of screw anchors and anchoring plates, the screw anchors penetrating through the base layer and the facing layer body and being firmly connected with the bank soil or rock, and the anchoring plates being installed in close contact with the adjacent precast blocks at the joint.

[0011] The utility model further sets up, the revetment still includes ecological planting layer body, ecological planting layer body is located facing layer body top, ecological planting layer body is composed of soil layer and vegetation layer.

[0012] The utility model further sets up, the revetment still includes drain pipeline, and drain pipeline is laid below base layer, drain pipeline includes water permeable pipe and filter layer, water permeable pipe is arranged along the bank direction, filter layer is wrapped in water permeable pipe outside.

[0013] The utility model further sets up, be equipped with a plurality of drainage holes on the pipe wall of water permeable pipe, the non - woven fabric in filter layer covers the drainage hole with shielding.

[0014] The utility model further sets up, the screw anchor screw is arranged at the center position of the anchoring plate, and the round head end of the screw anchor is embedded in the inside of the anchoring plate.

[0015] The utility model further sets up, the surface of precast block is uniformly distributed with convex point structure, and the circumferential side of precast block is alternately provided with limiting groove and limiting protrusion.

[0016] The utility model has the advantages of:

[0017] 1, the utility model discloses a base layer can significantly improve the stability of the bank, reduce soil erosion, specifically, the three-layer structure of base layer is set up, from bottom to top is gravel cushion layer, sand and gravel layer and geotextile, not only provides good drainage performance, avoids the soil softening caused by water accumulation, also enhances the bearing capacity and erosion resistance of foundation, effectively solves the common problem of soil erosion in traditional bank protection structure, improves the long-term stability and service life of the bank.

[0018] 2, the utility model discloses a facing layer body, not only reduces the weight of the overall structure, also enhances the connecting strength between precast blocks, the cavity structure in each precast block not only reduces the material cost, also facilitates construction installation, so that the facing layer body can maintain the integrity and stability of structure when bearing water flow impact, greatly prolongs the service life of bank protection structure.

[0019] 3. The utility model discloses a kind of anti-scour riverbank protection structures, including foundation layer, surface layer, ecological planting layer and drainage pipeline, wherein, foundation layer is connected with surface layer, and surface layer is connected with ecological planting layer, and drainage pipeline is connected with ecological planting layer.

[0020] Of course, it is not necessary to achieve all the advantages described above to implement any product of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings described in the embodiments briefly introduced, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.

[0022] Figure 1 It is a kind of anti-scour riverbank protection structure's ecological planting layer distribution schematic view.

[0023] Figure 2 It is a kind of anti-scour riverbank protection structure's hierarchical schematic view.

[0024] Figure 3 It is a kind of anti-scour riverbank protection structure's Figure 2 A structure enlarged schematic view in place A.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 100-slope, 101-foundation layer, 101a-gravel cushion layer, 101b-sand and gravel layer, 101c-geotextile, 102-surface layer, 102a-precast block, 103-anchoring assembly, 103a-spiral anchor, 103b-anchoring plate, 104-ecological planting layer, 105-drainage pipeline, 105a-permeable pipe, 105b-filter layer. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in the following by combining with the drawings in the embodiments of the utility model, obviously, the described embodiments only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model protection.

[0028] Embodiment one

[0029] Please refer toFigures 1-3 The utility model discloses an anti-scour river bank protection structure, including revetment 100, the revetment 100 includes:

[0030] Foundation layer 101, the foundation layer 101 is laid on river bank side slope, and its bottom layer is broken stone cushion layer 101a, and the intermediate layer is sand and gravel layer 101b, and the top layer is geotextile 101c, and the foundation layer 101 adopts three-layer structure setting, and from below to above, broken stone cushion layer 101a, sand and gravel layer 101b and geotextile 101c are in proper order, can effectively improve the stability of river bank, reduce soil erosion, wherein, broken stone cushion layer 101a can provide good drainage performance, avoid the soil softening caused by moisture accumulation, sand and gravel layer 101b further enhances the drainage function, and better bearing capacity is provided, and geotextile 101c can prevent fine particles from being carried away by water flow, and the lower structure is protected from erosion,

[0031] Covering layer body 102, which is covered on the foundation layer 101, is composed of a plurality of precast blocks 102a connected to each other, each of the precast blocks 102a has a cavity inside, and adjacent precast blocks 102a are spliced with each other. The covering layer body 102 is formed by connecting a plurality of precast blocks 102a to each other. Each precast block 102a has a cavity inside, which not only reduces the overall weight, but also improves the connection strength between the precast blocks 102a.

[0032] The anchor assembly 103 includes a plurality of spiral anchor rods 103a and anchor plates 103b. The spiral anchor rods 103a penetrate through the foundation layer 101 and the covering layer body 102 and are firmly connected with the river bank soil or rock. The anchor plates 103b are installed tightly at the junction of adjacent precast blocks 102a through the spiral anchor rods 103a. The spiral anchor rods 103a penetrate deep into the river bank soil or rock and are tightly combined with the covering layer body 102 and the foundation layer 101, thereby improving the stability of the entire revetment 100 structure and effectively resisting the impact and erosion of water flow. The anchor plates 103b are pressed against the precast blocks 102a, thereby reinforcing the covering layer body 102.

[0033] Specifically, the revetment 100 further includes an ecological planting layer 104, which is located above the covering layer body 102. The ecological planting layer 104 is composed of a soil layer and a vegetation layer. The ecological planting layer 104 not only beautifies the environment, but also further reinforces the revetment 100 structure through plant roots, thereby reducing soil erosion.

[0034] Further, the spiral anchor rod 103a is threaded through the center of the anchor plate 103b, and the round head end of the spiral anchor rod 103a is embedded in the interior of the anchor plate 103b.

[0035] The surfaces of the prefabricated blocks 102a are uniformly provided with convex structures, and the circumferential sides of the prefabricated blocks 102a are alternately provided with limiting grooves and limiting protrusions, the convex structures on the surfaces of the prefabricated blocks 102a increase the friction, which is helpful to fix the plant root system and enhance the ecological restoration effect, and the limiting grooves and limiting protrusions on the circumferential sides of the prefabricated blocks 102a ensure that the prefabricated blocks 102a are closely connected with each other, thereby improving the stability and durability of the overall structure.

[0036] Embodiment two

[0037] Please refer to Figure 2 and Figure 3 On the basis of the specific embodiment one, the slope protection 100 further comprises a drainage pipeline 105, and the drainage pipeline 105 is laid below the base layer 101, the drainage pipeline 105 comprises a water permeable pipe 105a and a filter layer 105b, the water permeable pipe 105a is arranged along the river bank direction, and the filter layer 105b is wrapped outside the water permeable pipe 105a, the drainage holes on the water permeable pipe 105a allow the underground water to flow into the pipeline and be discharged, and the filter layer 105b (such as non-woven fabric) prevents the impurities such as silt from entering the pipeline, so that the drainage system is kept unobstructed, thereby reducing the risk of damage to the river bank caused by the increase of underground water pressure.

[0038] Specifically, the water permeable pipe 105a is provided with a plurality of drainage holes on the pipe wall, and the non-woven fabric in the filter layer 105b covers and shields the drainage holes.

[0039] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An erosion protection structure for a river bank, comprising a revetment (100); characterized in that, The revetment (100) comprises: a foundation layer (101) laid on the riverbank slope, the bottom layer of which is a gravel cushion layer (101a), the middle layer is a sand and gravel layer (101b), and the top layer is a geotextile (101c); a facing layer body (102) covering the foundation layer (101) and composed of a plurality of interconnected prefabricated blocks (102a), each of which is internally provided with a cavity, and adjacent prefabricated blocks (102a) are spliced with each other; an anchoring assembly (103) comprising a plurality of spiral anchor rods (103a) and anchor plates (103b), the spiral anchor rods (103a) penetrating the foundation layer (101) and the facing layer body (102) and being firmly connected with the riverbank soil or rock, and the anchor plates (103b) being installed in close contact with the adjacent prefabricated blocks (102a) at the junctions thereof via the spiral anchor rods (103a).

2. An erosion control bank protection structure according to claim 1, wherein, The revetment (100) further comprises an ecological planting layer body (104) located above the facing layer body (102), which is composed of a soil layer and a vegetation layer.

3. An erosion control bank protection structure according to claim 1, wherein, The revetment (100) further comprises a drainage pipeline (105) laid below the foundation layer (101), which comprises a water-permeable pipe (105a) arranged along the riverbank direction and a filter layer (105b) wrapped outside the water-permeable pipe (105a).

4. An erosion control bank protection structure according to claim 3, wherein, A plurality of drainage holes are provided on the pipe wall of the water-permeable pipe (105a), and the non-woven fabric in the filter layer (105b) covers and shields the drainage holes.

5. An erosion control bank protection structure according to claim 1, wherein, The spiral anchor rod (103a) is threadedly provided at the center position of the anchor plate (103b), and the round head end of the spiral anchor rod (103a) is embedded in the anchor plate (103b).

6. An erosion control bank protection structure according to claim 1, wherein, The surface of the prefabricated block (102a) is uniformly distributed with convex point structures, and the circumferential side of the prefabricated block (102a) is alternately provided with a limiting groove and a limiting protrusion.

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