Ecological revetment prepared from river sediment in situ

Abstract

The utility model discloses a riverway bottom mud in-situ preparation ecological revetment in the field of ecological environment, which comprises a slope body, a concrete frame and ecological planting blocks, the slope body is composed of a rubble layer, a gravel layer, a block stone layer and a soil filling layer from bottom to top, a riverway bottom mud layer is covered above the soil filling layer, a nutrient soil layer is covered above the riverway bottom mud layer, and the nutrient soil layer is covered above the concrete frame. The concrete frames are arranged on the front side and the rear side of the top of the nutrient soil layer, the front side and the rear side of an inner cavity of each concrete frame are provided with a plurality of grooves and a plurality of protruding blocks respectively, each ecological planting block comprises a block body and wedging nails, each block body is provided with an inner cavity, and the protruding blocks and the grooves are formed in the middles of the front side and the rear side of the outer wall of each block body respectively. Wedging nails are evenly arranged on the periphery of the bottom of the ecological planting block, the ecological planting blocks are installed in an inner cavity of the concrete frame in a concave-convex butt joint mode in a rectangular array mode, and the wedging nails penetrate through a riverway bottom mud layer to be inserted into a soil filling layer. The device is simple in structure and high in stability, and has the advantage of recycling river sediment.

Description

Technical Field

[0001] The utility model relates to the field of ecological environment, in particular to an ecological bank protection prepared in situ by riverbed mud. Background Art

[0002] In the current construction of riverbank protection projects, the river channel is usually excavated, and a lot of riverbed mud will be dug out during the excavation process. Due to the engineering properties of the riverbed mud, it is not suitable for engineering backfilling. If it is dredged and transported for the second time, it will require a lot of manpower and material resources. However, the riverbed mud is rich in humus, which can provide a lot of nutrients for plants, and this feature can be utilized.

[0003] For example, Chinese patent application number CN201420847068.9 has the following specific contents: The utility model relates to an ecological revetment structure, which includes an adsorption filtration layer and a bottom mud ecological bag layer arranged from bottom to top along the slope of the revetment foundation, wherein the adsorption filtration layer is a layered structure formed by paving graded gravel, zeolite and fly ash, and a three-dimensional vegetation net is also laid on the top of the adsorption filtration layer, and the bottom mud ecological bag layer is formed by piling up ecological bags filled with bottom mud and fine sand, and heavy metal hyperaccumulator plants and landscape plants are planted on the ecological bags. The utility model utilizes the bottom mud after dredging of rivers and lakes on site, and further absorbs and filters the pollutants and eutrophic substances in the bottom mud through the layered revetment structure and vegetation planting, which not only achieves the harmless resource utilization of the bottom mud, but also avoids the waste of resources such as planting soil required for the revetment construction, and saves the cost of bottom mud transportation, forming an ecological revetment with beautiful and stable structure and outstanding ecological effect.

[0004] Although this ecological bank protection structure solves the problem of sediment utilization, it still needs to mix the sediment with fine sand and carry out a complicated bagging process. This not only increases the cost, but the bag is easily damaged in the outdoor environment for a long time, causing the sediment in the bag to flow into the river again, causing secondary pollution to the river.

[0005] Based on this, the utility model designs an ecological bank protection for in-situ preparation of riverbed mud to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a method for treating bottom mud on site and utilizing the characteristic that the bottom mud is rich in humus, so as to solve the problem of not making reasonable use of river bottom mud proposed in the above-mentioned background technology through the combination of concrete frame and ecological planting block.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a slope, a concrete frame and an ecological planting block, wherein the slope is composed of a rubble stone layer, a gravel layer, a block stone layer and a fill layer from bottom to top, the fill layer is covered with a riverbed mud layer, and the riverbed mud layer is covered with a nutrient soil layer, a plurality of concrete frames are arranged on the front and rear sides of the top of the nutrient soil layer, and a plurality of grooves and a plurality of protrusions are respectively provided on the front and rear sides of the inner cavity thereof, the ecological planting block comprises a block and a wedge nail, an inner cavity with upper and lower openings is provided in the middle of the block, and protrusions and grooves are respectively provided in the middle of the front and rear sides of the outer wall thereof, and wedge nails are evenly arranged around the bottom of the block, a plurality of ecological planting blocks are installed in the inner cavity of the concrete frame in a rectangular array in a concave-convex docking manner, the wedge nails pass through the riverbed mud layer and are inserted into the fill layer, the wedge nails make the ecological planting block more firmly fixed in the slope, and after the ecological planting block is installed, the lower part of the inner cavity is the riverbed mud, and the upper part is the nutrient soil, providing rich planting conditions for subsequent planting.

[0008] Preferably, a reinforced concrete retaining wall is provided at the lower right part of the slope, and the reinforced concrete retaining wall includes a reinforced concrete foundation and a reinforced concrete retaining wall. The reinforced concrete retaining wall is arranged on the top of the reinforced concrete foundation, and a drainage hole is provided at the lower part thereof. The reinforced concrete retaining wall is used to prevent the influence of water waves in the river channel on the bank protection during the flood season.

[0009] Preferably, the slope is a three-level gentle slope structure, and platform sections are provided on the left and right sides of each level of the gentle slope. A step fitting the slope structure is provided in the middle of the top surface of the slope.

[0010] Preferably, a drainage channel that fits the slope structure is opened between the two groups of concrete frames, and the drainage channel discharges water through drainage holes.

[0011] Preferably, a pedestrian walkway and a guardrail are arranged on the top of the platform section on the left side of the top of the slope, a plurality of roadside trees are arranged on the left side of the pedestrian walkway, and the guardrail is installed on the front and rear parts of the right side of the pedestrian walkway.

[0012] Preferably, the cross-section of the inner cavity in the middle of the block is hexagonal, and the hexagonal structure is beneficial to the root development of the implant.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the overall structure of the utility model is stable and the layout is reasonable. Through the combination of the concrete frame and the ecological planting blocks, not only the engineering properties of the riverbed mud are fully utilized, so that the ecological planting blocks can penetrate into the riverbed mud layer, and the ecological planting bodies can better absorb nutrients, but each ecological planting block can be taken out separately as the smallest unit for maintenance and replacement.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of an ecological bank protection structure prepared in situ by riverbed mud according to the utility model;

[0017] Figure 2 It is a right side schematic diagram of an ecological bank protection in situ prepared from riverbed mud according to the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the ecological planting block of the utility model;

[0019] Figure 4 It is a schematic diagram of the reinforced concrete retaining wall of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1-slope, 2-concrete frame, 3-ecological planting block, 31-block, 32-wedge nail, 4-rubble stone layer, 5-block stone layer, 6-gravel layer, 7-fill layer, 8-riverbed mud layer, 9-nutrient soil layer, 10-reinforced concrete retaining wall, 101-reinforced concrete foundation, 102-reinforced concrete retaining wall, 103-spilling hole, 11-steps, 12-drainage channel, 13-sidewalk, 14-roadside trees, 15-guardrail. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the 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.

[0023] See also Figure 1-4The utility model provides a technical solution: an ecological revetment prepared in situ from riverbed mud, comprising a slope 1, a concrete frame 2 and an ecological planting block 3, wherein the slope 1 is composed of a rough stone layer 4, a gravel layer 5, a block stone layer 6 and a fill layer 7 from bottom to top, and the fill layer 7 is covered with a riverbed mud layer 8, and the riverbed mud layer 8 is covered with a nutrient soil layer 9, and a plurality of concrete frames 2 are arranged on the front and rear sides of the top of the nutrient soil layer 9, and a plurality of grooves and a plurality of protrusions are respectively opened on the front and rear sides of the inner cavity thereof, and the ecological planting block 3 comprises a block 31 and a wedging nail 32, An inner cavity with upper and lower openings is provided in the middle of the block 31, and protrusions and grooves are respectively provided in the middle of the front and rear sides of its outer wall. Wedge nails 32 are evenly arranged around the bottom of the block 31. Several ecological planting blocks 3 are installed in the inner cavity of the concrete frame 2 in a rectangular array in a concave-convex docking manner. The wedge nails 32 pass through the riverbed mud layer 8 and are inserted into the fill layer 7. The wedge nails 32 make the ecological planting blocks 3 more firmly fixed in the slope 1. After the ecological planting blocks 3 are installed, the lower part of the inner cavity is the riverbed mud, and the upper part is nutrient soil, which provides rich planting conditions for subsequent planting.

[0024] Furthermore, a reinforced concrete retaining wall 10 is provided at the lower right portion of the slope 1. The reinforced concrete retaining wall 10 includes a reinforced concrete foundation 101 and a reinforced concrete retaining wall 102. The reinforced concrete retaining wall 102 is provided on the top of the reinforced concrete foundation 101, and a drainage hole 103 is provided at the lower portion thereof. The reinforced concrete retaining wall is used to prevent the influence of water waves on the bank protection during the flood season of the river.

[0025] Furthermore, the slope 1 is a three-level gentle slope structure, and platform sections are arranged on the left and right sides of each level of the gentle slope. A step 11 fitting the structure of the slope 1 is opened in the middle of the top surface of the slope 1, and the height of each step is 150 mm.

[0026] Furthermore, a drainage channel 12 that fits the structure of the slope 1 is opened between the two groups of concrete frames 2, and the drainage channel 12 discharges water through the drainage holes 103.

[0027] Furthermore, a pedestrian walkway 13 and a guardrail 15 are arranged on the top of the platform section on the left side of the top of the slope 1. A number of roadside trees 14 are arranged on the left side of the pedestrian walkway 13. The guardrail 15 is installed on the front and rear parts of the right side of the pedestrian walkway 13. The height of the guardrail is 1.5 meters to prevent pedestrians from accidentally falling.

[0028] Furthermore, the cross-section of the inner cavity in the middle of the block 1 is hexagonal, and the hexagonal structure is beneficial to the root development of the implant.

[0029] A specific application of this embodiment is: the utility model is an ecological revetment prepared in situ from riverbed mud. During construction, the slope 1 uses a rubble stone layer 4 as the main load-bearing layer. A reinforced concrete retaining wall 10 is cast on the right side of the rubble stone layer 4 to prevent the impact of waves on the revetment during the flood season of the river. A block stone layer 5 is laid above the rubble stone layer 4, and a gravel layer 6 is laid above the block stone layer 5. The gravel layer 6 is then covered with backfill, and a riverbed mud layer 8 is covered above the backfill layer 7. The riverbed mud layer 8 is fully covered with nutrients. The prefabricated concrete frame 2 is fixed on the nutrient soil layer 9 by plain concrete, and then the prefabricated ecological planting block 3 is installed in the concrete frame 3 in a concave-convex connection manner. The wedging nails 32 at the bottom of the ecological planting block 3 pass through the riverbed mud layer 8 and are inserted into the fill layer 7. A step fitting the slope structure is opened in the middle of the top surface of the slope 1. The left side of the top of the slope 1 is a pedestrian walkway 13, and street trees 14 are planted on the left side, and a guardrail 15 is set on the right side for warning and to prevent pedestrians from accidentally falling.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation 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.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An in-situ preparation of ecological bank protection by riverbed mud, characterized by: The invention comprises a slope body (1), a concrete frame (2) and an ecological planting block (3); the slope body (1) is composed of a rough stone layer (4), a gravel layer (5), a block stone layer (6) and a fill layer (7) from bottom to top; the fill layer (7) is covered with a riverbed mud layer (8); the riverbed mud layer (8) is covered with a nutrient soil layer (9); a plurality of the concrete frames (2) are arranged on the front and rear sides of the top of the nutrient soil layer (9); and a plurality of grooves and a plurality of protrusions are respectively provided on the front and rear sides of the inner cavity thereof. The ecological planting block (3) comprises a block body (31) and a wedging nail (32). The block body (31) has an inner cavity with upper and lower openings in the middle, and a convex block and a concave groove are respectively provided in the middle of the front and rear sides of the outer wall. The wedging nails (32) are evenly arranged around the bottom of the block body (31). A plurality of the ecological planting blocks (3) are installed in the inner cavity of the concrete frame (2) in a rectangular array in a concave-convex docking manner. The wedging nails (32) pass through the riverbed mud layer (8) and are inserted into the fill layer (7).

2. The in-situ preparation of ecological revetment by riverbed mud according to claim 1, characterized in that: A reinforced concrete water retaining wall (10) is arranged at the lower right part of the slope (1), and the reinforced concrete water retaining wall (10) comprises a reinforced concrete foundation (101) and a reinforced concrete retaining wall (102). The reinforced concrete retaining wall (102) is arranged on the top of the reinforced concrete foundation (101), and a drainage hole (103) is arranged at the lower part thereof.

3. The in-situ preparation of ecological revetment by riverbed mud according to claim 1, characterized in that: The slope (1) is a three-level gentle slope structure, with platform sections being arranged on the left and right sides of each level of the gentle slope, and a step (11) fitting the structure of the slope (1) being provided in the middle of the top surface of the slope (1).

4. The in-situ preparation of ecological revetment by riverbed mud according to claim 2, characterized in that: A drainage channel (12) conforming to the structure of the slope (1) is provided between the two groups of concrete frames (2), and the drainage channel (12) discharges water through the drainage holes (103).

5. The in-situ preparation of ecological revetment by riverbed mud according to claim 1, characterized in that: A pedestrian walkway (13) and a guardrail (15) are arranged on the top of the platform section on the left side of the top of the slope (1), a plurality of roadside trees (14) are arranged on the left side of the pedestrian walkway (13), and the guardrail (15) is installed at the front and rear parts of the right side of the pedestrian walkway (13).

6. The in-situ preparation of ecological revetment by riverbed mud according to claim 1, characterized in that: The cross section of the inner cavity in the middle of the block (31) is hexagonal.

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