River channel dredging sludge-based slope protection
By piling up dredged silt on both sides of the river to form a retaining wall, and setting up a guide arc slope and filling material components, the problems of silt transportation waste and pollution were solved, achieving both aesthetic appeal and ecological protection of the retaining wall.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中交和美环境生态建设有限公司
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-09
Smart Images
Figure CN224338167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of river management technology, specifically to a slope protection method based on river dredging and silt removal. Background Technology
[0002] The amount of silt generated in water bodies is increasing day by day with social development. Dredging is an important part of water body management. At present, with the gradual deepening of the concept of resource utilization, people can utilize the dredged river silt after unified treatment.
[0003] For example, Chinese invention patent CN114477673A, entitled "A Method for Resource Utilization and Treatment of River Silt," includes the following steps: River dredging: a first dredging method is used for small rivers with shallow water levels and small silt volumes, and a second dredging method is used for medium and large rivers and lakes with deep water levels and large silt volumes; Waste separation: the river silt dredged in step S1 is pumped to a waste separation system to separate the mixed sand and gravel from the waste, ensuring the purity of the silt. This method, by adding a waste separation step, can separate the mixed sand and gravel from the silt before dehydration and consolidation, ensuring the purity of the silt, which is beneficial for subsequent road backfilling operations and subsequent multi-faceted utilization; by adding a conditioning reaction step, the silt can be sterilized, disinfected, deodorized, and have toxic heavy metals removed before dehydration and consolidation, improving the treatment quality and ensuring the safety of subsequent use.
[0004] However, filtering or directly transporting the adsorbed mud is wasteful of manpower and resources because the mud still contains a lot of water, and randomly spilling it on the shore causes environmental pollution and affects the ecological environment. Utility Model Content
[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a slope protection method based on river dredging silt, which solves the technical problems in the prior art where directly transporting away the dredged silt not only wastes manpower and resources, but also causes environmental pollution due to the silt spilled on the bank during the transportation process.
[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:
[0007] This utility model provides a slope protection method based on river dredging silt, including:
[0008] The silt slope has at least two guiding arc slopes, which are parallel to each other and spaced apart along the extension direction of the silt slope, and a guiding channel is formed between two adjacent guiding arc slopes.
[0009] At least one packing assembly, the packing assembly being disposed within the flow guide channel; and
[0010] A perforated bottom mud-planted brick layer extends along the surface of the silt slope and is laid on the surface of the silt slope and the filler assembly.
[0011] In some embodiments, the guide arc slope has a raised end and two recessed ends, the two recessed ends being disposed on both sides of the raised end and distributed symmetrically along the raised end as the central axis of symmetry.
[0012] In some embodiments, the protruding end forms two guide slopes between the two concave ends, and the slope of the guide slopes is 5° to 10°.
[0013] In some embodiments, the porous substrate planting brick layer can extend into the guide channel to a depth of 10 mm to 20 mm.
[0014] In some embodiments, the packing assembly includes a gravel layer, a pebble layer, and a ceramsite filter layer arranged sequentially from bottom to top, wherein the gravel layer, pebble layer, and ceramsite filter layer are uniformly filled in the flow channel.
[0015] In some embodiments, the filler assembly further includes at least one first geotextile laid on the bottom inner wall of the diversion channel, and the gravel layer is uniformly laid on the first geotextile.
[0016] In some embodiments, the filler assembly further includes two second geotextiles, which are respectively disposed between the gravel layer and the gravel layer and between the gravel layer and the ceramsite filter layer.
[0017] In some embodiments, the gravel layer, the cobblestone layer, and the ceramsite filter layer are all of the same thickness.
[0018] In some embodiments, the slope protection based on river dredging silt further includes a silt layer laid on the expanded clay filter layer, and the thickness of the silt layer is 10 mm to 15 mm.
[0019] In some embodiments, the length of the guide channel is equal to the width of the silt slope, and the depth of the guide channel is equal to one-third of the height of the vertical section of the silt slope.
[0020] Compared with the prior art, the beneficial effects of the slope protection based on river dredging silt provided by this utility model include: the silt slope is constructed by piling up silt from river dredging, and at least two flow guiding arc slopes are formed on the silt slope, a flow guiding channel is formed between the two flow guiding arc slopes, the flow guiding channel is filled with a filler component, and a perforated bottom mud planting brick layer is laid on the surface of the silt slope and the filler component. Compared to existing technologies, this new method directly piles dredged silt from the riverbed onto both banks to form silt slopes for protection. These silt slopes have guiding arcs that direct rainwater into the diversion channel, where it is filtered by the filler components. A layer of perforated bottom mud-planted bricks is laid on the surface of the silt slopes and filler components, which improves the aesthetics of the protection. This method avoids the waste of manpower and resources caused by transporting silt and reduces environmental pollution caused by silt spillage during transport. It solves the technical problems of existing technologies where directly transporting dredged silt from the riverbed not only wastes manpower and resources but also causes environmental pollution due to silt spillage on the banks during transport. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of a slope protection method based on river dredging silt provided in an embodiment of this utility model;
[0022] Figure 2 This is a cross-sectional view of a slope protection method based on river dredging silt provided in one embodiment of the present invention;
[0023] Figure 3 This is a top view of a slope protection method based on river dredging silt provided in one embodiment of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] Silt slope 100; diversion arc slope 110; diversion channel 120; diversion slope surface 130; filler assembly 200; gravel layer 210; gravel layer 220; ceramsite filter layer 230; first geotextile 240; second geotextile 250; perforated bottom mud planting brick layer 300; silt layer 400. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] To address the technical problems of directly transporting dredged silt from rivers, which wastes manpower and resources and causes environmental pollution due to silt spilled on the banks during transport, this invention provides a slope protection system based on dredged silt. This system allows for the direct stacking of dredged silt onto both banks of the river to form a silt slope 100. The silt slope 100 features a guiding arc slope 110 that directs rainwater into a guiding channel 120, where it is filtered by a filler assembly 200. A porous bottom mud-planting brick layer 300 is laid on the surface of the silt slope 100 and the filler assembly 200, enhancing the aesthetics of the slope protection, avoiding the waste of manpower and resources caused by silt transport, and reducing environmental pollution caused by silt spillage during transport.
[0028] Please see Figures 1 to 3 , Figure 1 , Figure 2 This is a schematic diagram of a slope protection structure based on river dredging silt in one embodiment of the present invention. The slope protection structure based on river dredging silt includes: a silt slope 100, at least one filler component 200, and a perforated bottom mud planting brick layer 300. The silt slope 100 is made of silt and has at least two flow guiding arc slopes 110. The at least two flow guiding arc slopes 110 are parallel to each other and spaced apart along the extension direction of the silt slope 100, and a flow guiding groove 120 is formed between two adjacent flow guiding arc slopes 110. The filler component 200 is uniformly filled in the flow guiding groove 120. The perforated bottom mud planting brick layer 300 extends along the surface of the silt slope 100 and is laid on the surface of the silt slope 100 and the filler component 200.
[0029] In this device, silt dredged from the river is directly piled on both banks of the river to form a silt slope 100 for protection. A guide arc slope 110 is formed on the silt slope 100 to guide rainwater into the guide channel 120 and filter it through the filler assembly 200. A porous bottom mud planting brick layer 300 is laid on the surface of the silt slope 100 and the filler assembly 200, which can improve the aesthetics of the protection, avoid the waste of manpower and material resources caused by transporting silt, and reduce the environmental pollution caused by silt spillage during the transportation process. It solves the technical problems in the prior art where directly transporting the dredged silt from the river not only wastes manpower and material resources, but also causes environmental pollution due to silt spilled on the banks during the transportation process.
[0030] Furthermore, the silt generated from river dredging is directly laid on the riverbank, which avoids the need to transport the silt. The perforated bottom mud planting brick layer 300 here is a common and readily available perforated raw brick on the market. It can not only effectively allow rainwater to permeate to the silt slope 100, but also allow vegetation to be planted to solidify and protect the silt slope 100. This is a conventional setting known to those skilled in the art, and will not be described in detail here.
[0031] Furthermore, after the assembly and laying are completed, plants or grass seeds are planted on the 300mm layer of perforated bottom mud planting bricks, and normal care is provided to ensure the establishment and growth. Further details will not be elaborated here.
[0032] In this embodiment, as Figure 1 As shown, the guide arc slope 110 has a raised end and two concave ends. The two concave ends are located on both sides of the raised end and are distributed symmetrically along the axis of symmetry with the raised end as the center.
[0033] The guide arc slope 110 has a regular symmetrical structure, which can effectively guide rainwater into the guide channel 120 and prevent rainwater from forming water accumulation or depressions on the silt slope 100.
[0034] In one embodiment, please refer to Figure 1 Two guide slopes 130 are formed between the protruding end and the two concave ends, with a slope of 5° to 10°.
[0035] In order to effectively improve the diversion effect, the slope of the diversion slope 130 is 5° to 10°, which can effectively guide rainwater into the diversion channel 120 and prevent rainwater from forming water accumulation or depressions on the silt slope 100.
[0036] In one embodiment, please refer to Figure 1 The perforated bottom mud-planted brick layer 300 can extend into the guide channel 120, with an extension depth of 10 mm to 20 mm.
[0037] In order to effectively improve the diversion effect, the perforated bottom mud planting brick layer 300 can extend into the diversion channel 120, which can effectively guide rainwater into the diversion channel 120 and prevent rainwater from forming water accumulation or depressions on the silt slope 100.
[0038] In this embodiment, the filler assembly 200 includes a gravel layer 210, a gravel layer 220 and a ceramic filter layer 230 arranged sequentially from bottom to top. The gravel layer 210, the gravel layer 220 and the ceramic filter layer 230 are uniformly filled in the guide channel 120.
[0039] The gravel layer 210, the cobblestone layer 220, and the ceramsite filter layer 230 are arranged sequentially from bottom to top, forming an effective filtration structure to prevent pollutants or impurities mixed in rainwater from flowing into the river.
[0040] Furthermore, the gravel layer 210, the cobblestone layer 220, and the ceramsite filter layer 230 are common and readily available equipment on the market. This is a conventional setup known to those skilled in the art, and will not be described in detail here.
[0041] In one embodiment, please refer to Figure 1 , Figure 2The filler assembly 200 also includes at least one first geotextile 240, which is laid on the bottom inner wall of the diversion channel 120, and the gravel layer 210 is evenly laid on the first geotextile 240.
[0042] The first geotextile 240 is laid on the gravel layer 210, the gravel layer 220 and the ceramsite filter layer 230. The first geotextile 240 allows water to flow through, while effectively blocking the migration of particles in the adjacent gravel layer 210, preventing fine particles from being washed away by the water flow, thereby maintaining the stability of the particle size of each layer.
[0043] Furthermore, the first geotextile 240 here is a fiber mesh geotextile that is common in the market and easy to purchase. This is a conventional setting known to those skilled in the art, and will not be described in detail here.
[0044] In one embodiment, please refer to Figure 1 , Figure 2 The filler assembly 200 also includes two second geotextiles 250, which are respectively disposed between the gravel layer 210 and the gravel layer 220 and between the gravel layer 220 and the ceramsite filter layer 230.
[0045] The second geotextile 250 is laid on the gravel layer 210, the gravel layer 220 and the ceramsite filter layer 230. The second geotextile 250 allows water to flow through, while effectively blocking particle migration between adjacent layers (such as the gravel layer 210, gravel, and ceramsite layer), preventing fine particles from being washed away by water flow, thereby maintaining the stability of particle size in each layer.
[0046] Furthermore, the second geotextile 250 here is a fiber mesh geotextile that is common in the market and easy to purchase. This is a conventional setting known to those skilled in the art, and will not be described in detail here.
[0047] In one embodiment, please refer to Figure 1 , Figure 2 The gravel layer 210, the cobblestone layer 220, and the ceramsite filter layer 230 all have the same thickness.
[0048] By setting up gravel layer 210, cobblestone layer 220 and ceramsite filter layer 230 of uniform thickness, construction is not only easier, but the filtration effect can also be effectively improved.
[0049] In one embodiment, please refer to Figure 1 The slope protection based on river dredging silt also includes a silt layer 400, which is laid on the ceramsite filter layer 230, and the thickness of the silt layer 400 is 10 mm to 15 mm.
[0050] The silt layer 400 can provide water and nutrients that facilitate vegetation growth.
[0051] In one embodiment, please refer to Figure 1 The length of the diversion channel 120 is equal to the width of the silt slope 100, and the depth of the diversion channel 120 is equal to one-third of the height of the vertical section of the silt slope 100.
[0052] The depth of the diversion channel 120 is equal to one-third of the height of the vertical section of the silt slope 100. It can not only guide rainwater but also not affect the overall strength and stability of the silt slope 100.
[0053] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail below:
[0054] The silt slope 100 is constructed using silt dredged from the riverbed, and at least two guiding arc slopes 110 are formed on the silt slope 100. A guiding channel 120 is formed between the two guiding arc slopes 110, and the guiding channel 120 is filled with a filler assembly 200. A porous bottom mud-planting brick layer 300 is laid on the surface of the silt slope 100 and the filler assembly 200. Compared with existing technologies, by directly piling the silt dredged from the riverbed onto both banks of the river to form the silt slope 100, the guiding arc slopes 110 on the silt slope 100 can guide rainwater into the guiding channel 120, where it can be filtered by the filler assembly 200. The porous bottom mud-planting brick layer 300 laid on the surface of the silt slope 100 and the filler assembly 200 can improve the aesthetics of the slope protection, avoid the waste of manpower and material resources caused by transporting silt, and reduce environmental pollution caused by silt spillage during the transportation process.
[0055] Furthermore, the porous bottom mud planting bricks prepared by this application using dredged bottom mud and waste plant fibers have a certain mechanical strength. When assembled and laid on the fill slope, they can increase the early stability of the silt slope. Planting plants in the holes is conducive to the establishment and growth of the plants. After the root system is developed, it can improve the slope stability and vegetation coverage, thus achieving the purpose of "returning mud to soil".
[0056] Furthermore, this application arranges sediment pile areas and permeable guide walls with infiltrative filler at intervals along the slope direction to maintain soil connectivity. The perforated sediment-planting bricks assembled on the surface make the surfaces of the sediment pile and the guide wall inverted U-shape and U-shape, respectively. Due to the high porosity of the guide wall, rainwater can infiltrate rapidly, which can not only prevent rainwater from eroding the entire slope, but also adsorb and remove pollutants.
[0057] Furthermore, this application can make full use of dredged sediment to effectively stabilize slopes and resist erosion. In the long term, sediment-planted bricks have excellent characteristics such as being environmentally friendly and biodegradable, which helps to promote the sustainability of ecological slopes.
[0058] This device, through the aforementioned structure, can solve the technical problems in the prior art where directly transporting away the dredged silt from the river channel not only wastes manpower and resources, but also causes environmental pollution due to the silt spilled on the bank during the transfer process.
[0059] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A slope protection method based on river dredging silt, characterized in that, include: The silt slope has at least two guiding arc slopes, which are parallel to each other and spaced apart along the extension direction of the silt slope, and a guiding channel is formed between two adjacent guiding arc slopes. At least one packing assembly, the packing assembly being disposed within the flow guide channel; and A perforated bottom mud-planted brick layer extends along the surface of the silt slope and is laid on the surface of the silt slope and the filler assembly.
2. The slope protection method based on river dredging silt according to claim 1, characterized in that, The guiding arc slope has a raised end and two concave ends. The two concave ends are located on both sides of the raised end and are distributed symmetrically along the raised end as the central axis of symmetry.
3. The slope protection method based on river dredging silt according to claim 2, characterized in that, The protruding end and the two concave ends respectively form two guiding slopes, the slope of which is 5° to 10°.
4. The slope protection method based on river dredging silt according to claim 2, characterized in that, The perforated bottom mud-planted brick layer can extend into the guide channel to a depth of 10 mm to 20 mm.
5. The slope protection method based on river dredging silt according to claim 1, characterized in that, The packing assembly includes a gravel layer, a gravel layer, and a ceramic filter layer arranged sequentially from bottom to top, and the gravel layer, gravel layer, and ceramic filter layer are uniformly filled in the flow channel.
6. The slope protection method based on river dredging silt according to claim 5, characterized in that, The filler assembly further includes at least one first geotextile, which is laid on the bottom inner wall of the diversion channel, and the gravel layer is evenly laid on the first geotextile.
7. The slope protection method based on river dredging silt according to claim 5, characterized in that, The filler assembly also includes two second geotextiles, which are respectively disposed between the gravel layer and the cobblestone layer and between the cobblestone layer and the ceramsite filter layer.
8. The slope protection method based on river dredging silt according to claim 5, characterized in that, The gravel layer, the cobblestone layer, and the ceramsite filter layer all have the same thickness.
9. The slope protection method based on river dredging silt according to claim 5, characterized in that, The slope protection based on river dredging silt also includes a silt layer, which is laid on the ceramsite filter layer, and the thickness of the silt layer is 10 mm to 15 mm.
10. The slope protection method based on river dredging silt according to claim 1, characterized in that, The length of the diversion channel is equal to the width of the silt slope, and the depth of the diversion channel is equal to one-third of the height of the vertical section of the silt slope.