Upright revetment ecological structure of riverway

Abstract

The utility model discloses a vertical revetment ecological structure of a river channel, which relates to river channel engineering and comprises vertical retaining walls built on two sides of the river channel. The active filtering and decomposing zone ecological structure is attached to the side wall of the vertical retaining wall and comprises a threaded mesh cage filled with graded pebble filler; the plant planting pipe is vertically inserted into the threaded mesh cage by a preset depth, and a nutrition medium part planted with green plants is arranged in the plant planting pipe; wherein a ventilation transverse pipe with one end extending towards the center of the river channel is arranged in the threaded mesh cage, and the ventilation transverse pipe is communicated with the plant planting pipe. The device can purify water and improve the ecological function of a vertical river water body, and is simple in design, small in occupied water area, low in cost and convenient to operate and maintain.

Description

Technical Field

[0001] The utility model relates to a river project, in particular to an upright river bank protection ecological structure. Background Art

[0002] River bank protection is mostly made of cast-in-place block stone, mortar-laid block stone and concrete. Although these materials can ensure the safety and stability of the river bank protection structure, they are poor in ecology and landscape, and do not meet the requirements of the concept of happy river and lake ecological construction.

[0003] In recent years, river bank protection has begun to consider ecological construction on the basis of paying attention to its safety and functionality. For example, the public (announcement) number: CN113322896A, the public (announcement) date: 2021, 08, 31, discloses an urban river ecological bank protection system. Under the existing conditions, large-scale demolition and reconstruction of the current upright structure of the river is not possible either from the perspective of water conservancy projects or the requirements of urban development. The investment is self-evident. The most critical thing is that with the development of urban construction, the land side of the river has no possibility of widening. At present, pile foundation cap structures, or ecological floating bed wetland systems, or secondary slope structures are mainly used to demand space from the waterfront. These methods occupy water space and affect water capacity.

[0004] Therefore, under the premise of not affecting the normal flood control and drainage functions of the river, based on the existing conditions, it is urgent to construct an upright bank protection ecological structure that occupies a small area of ​​river water, has low cost and is easy to maintain, improve the shoreline vitality and ecology of the upright bank protection, change the habitat conditions of the upright bank protection waterfront, and enhance the ecological function of the river. Utility Model Content

[0005] The utility model aims to provide a river channel upright bank protection ecological structure for solving the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a river channel vertical bank protection ecological structure, comprising:

[0007] Vertical retaining walls built on both sides of the river;

[0008] The active filtration belt ecological structure placed in close contact with the side wall of the vertical retaining wall includes:

[0009] A threaded mesh cage filled with graded pebble filler;

[0010] A plant planting tube vertically inserted into the threaded mesh cage at a predetermined depth, wherein a nutrient matrix portion planted with green plants is arranged in the plant planting tube;

[0011] Wherein, a ventilation transverse pipe with one end extending toward the center of the river channel is arranged in the threaded mesh cage, and the ventilation transverse pipe is connected with the plant planting pipe.

[0012] Preferably, the height of the threaded mesh cage is greater than the annual average water level of the river channel, the air-permeable transverse tube is lower than the annual average water level of the river channel, and the bottom end of the nutrient matrix portion is higher than the annual average water level of the river channel.

[0013] Preferably, the nutrient matrix portion is composed of a cylindrical three-dimensional geonet and a filler filled in the cylindrical three-dimensional geonet.

[0014] Preferably, the diameter of the graded pebble filler is 2-8 cm, and the filler can be selected from one or more of crushed quartz or ceramsite fillers.

[0015] Preferably, the plant planting tube is provided with air holes arranged in a circumferential array, and the plurality of air holes are arranged higher than the annual average water level of the river channel.

[0016] Preferably, the threaded mesh cage is composed of a plurality of assembly modules, and the assembly modules include a symmetrically arranged main frame and threaded mesh covers covering the outer sides of two main frames;

[0017] Each of the assembly modules is equipped with a plant planting tube and a ventilation transverse tube;

[0018] It also includes a central tube for connecting the plurality of plant planting tubes and the plurality of air-permeable transverse tubes in series, and the central tube is located in the threaded mesh cage.

[0019] Preferably, connecting plates are symmetrically welded between the two main frames.

[0020] Preferably, L-shaped hook feet are symmetrically arranged in pairs on the end surface of the first main frame, and the L-shaped hook feet include a vertical portion, and a spherical protrusion is arranged on the side of the vertical portion facing the main frame;

[0021] The second main frame is provided with a through slot for the vertical portion to be inserted into, and an elastic clamping member bent into a trapezoidal structure with an oblique edge is provided on the end surface of the second main frame. The elastic clamping member is equal in length to the vertical portion, is in the same horizontal plane, and is arranged close to the through slot;

[0022] The lower bottom of the elastic clamp is an arc-shaped elastic member, and a hole groove for the spherical protrusion to be embedded is formed on the inclined surface of the elastic clamp.

[0023] Preferably, the outer walls of the air-permeable transverse tube and the central tube are wrapped with a buffer layer.

[0024] Preferably, the buffer layer is made of 30KN / m machine-made geotextile.

[0025] In the above technical scheme, the utility model provides an upright river bank protection ecological structure, which has the following beneficial effects: it is composed of an upright retaining wall and an active filtration belt ecological structure, wherein the active filtration belt ecological structure is provided with a threaded mesh cage, graded pebble filler, a breathable horizontal pipe and a plant planting tube with green plants, and the internal filler layer uses graded pebbles to purify the water.

[0026] Without affecting the normal flood control and drainage function of the river, it can provide support for the safety and stability of the vertical revetment to a certain extent, and can increase the area of ​​the vertical revetment waterfront. At the same time, the structure is simple in design, occupies a small area of ​​the river, has low cost and low operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A typical cross section of a river channel vertical bank protection provided by an embodiment of the utility model;

[0029] Figure 2 An elevation view of an active filtration belt provided in an embodiment of the utility model;

[0030] Figure 3 The structure diagram of the active filtration belt provided by the embodiment of the utility model;

[0031] Figure 4 A schematic diagram of the structure of a threaded mesh cage provided in an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 1. Graded pebble filler; 2. Vertical retaining wall; 3. Gravel cushion layer; 4. Central tube; 5. Plant planting tube; 6. Threaded mesh cage; 61. Main frame; 62. Threaded mesh cover; 63. L-shaped hook foot; 631. Spherical protrusion; 64. Elastic clip; 641. Arc elastic part; 65. Connecting plate; 7. Nutrient matrix part; 8. Breathable horizontal tube; 9. Buffer layer; 10. Breathing hole. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] like Figure 1-4 As shown, a river channel vertical bank protection ecological structure includes:

[0036] Vertical retaining walls built on both sides of the river channel 2;

[0037] The active filtration zone ecological structure is placed on the side wall of the vertical retaining wall 2, and includes:

[0038] A threaded mesh cage 6 filled with graded pebble filler 1;

[0039] A plant planting tube 5 is vertically inserted into the threaded mesh cage 6 at a predetermined depth, and a nutrient matrix 7 for planting green plants is arranged in the plant planting tube 5;

[0040] A transverse ventilation pipe 8 with one end extending toward the center of the river channel is arranged in the threaded mesh cage 6 , and the transverse ventilation pipe 8 is connected to the plant planting pipe 5 .

[0041] Specifically, in the above embodiment, combined with Figure 1 and Figure 2 It can be seen that:

[0042] The height of the threaded mesh cage 6 is greater than the annual average water level of the river;

[0043] The vent pipe 8 is lower than the annual average water level of the river;

[0044] The bottom end of the nutrient matrix portion 7 is higher than the annual average water level of the river channel, and is flush with the surface of the annual average water level of the river channel at the exposed portion of the threaded mesh cage 6 .

[0045] Furthermore, the nutrient matrix part 7 in the above embodiment is composed of a cylindrical three-dimensional geonet and a filler filled in the cylindrical three-dimensional geonet. The filler can be rotten pine wood or mixed with coconut powder, and other fillers known to those skilled in the art that can be used as a substitute for soil.

[0046] Secondly, green plants that save time and effort include the use of emergent plants such as calamus or cattail.

[0047] Furthermore, the diameter of the graded pebble filler 1 is 2-8 cm, and the filler can be selected from one or more of the crushed stone or ceramsite filler.

[0048] Furthermore, the threaded mesh cage 6 in the above embodiment has an outer support frame, reinforcement ribs and an internal water-permeable net. The outer support frame is a rectangular structure with a length of 0.8 to 1.2 m. The cross-section of the outer support frame is a square with a side length of 0.4 to 0.6 m. The outer support skeleton adopts HRB400 steel bars with a diameter of 10 to 12 mm, and the outer reinforcement ribs adopt HPB335 threaded steel bars with a diameter of 6 mm. The support skeleton and the reinforcement ribs are connected by galvanized steel wire mesh to form a water-permeable net. The mesh is square, and the mesh diameter is smaller than the graded pebble filler 1.

[0049] The above technology is composed of an upright retaining wall and an active filtration belt ecological structure, wherein the active filtration belt ecological structure is provided with a threaded mesh cage 6, graded pebble filler 1, a breathable horizontal pipe 8 and a plant planting tube 5 with green plants, and the internal filler layer uses graded pebbles to purify the water.

[0050] Without affecting the normal flood control and drainage function of the river, it can provide support for the safety and stability of the vertical revetment to a certain extent, and can increase the area of ​​the vertical revetment waterfront. At the same time, the structure is simple in design, occupies a small area of ​​the river, has low cost and low operating cost.

[0051] As an embodiment further provided by the utility model, the plant planting tube 5 is provided with air holes 10 arranged in a circumferential array, and the plurality of air holes 10 are arranged higher than the annual average water level of the river.

[0052] Specifically, the air holes 10 in the embodiment correspond to the nutrient matrix part 7, and are used to maintain the air permeability of the nutrient matrix part 7, so as to prevent the plant planting tube 5 from being stuffy due to direct sunlight, thereby causing the temperature inside the nutrient matrix part 7 to accumulate and thus lead to the death of the green plants.

[0053] As another embodiment further provided by the present invention, the threaded mesh cage 6 is composed of a plurality of assembly modules, and the assembly modules include a symmetrically arranged main frame 61 and a threaded mesh cover 62 covering the outer side surfaces of the two main frames 61;

[0054] Each assembly module is equipped with a plant planting tube 5 and a ventilation horizontal tube 8;

[0055] It also includes a central tube 4 for connecting a plurality of plant planting tubes 5 and a plurality of air-permeable transverse tubes 8 in series, and the central tube 4 is located in the threaded mesh cage 6 .

[0056] Furthermore, connecting plates 65 are symmetrically welded between the two main frames 61 .

[0057] Specifically, the use of multiple assembly modules greatly facilitates the deployment of the active filtration belt ecological structure, greatly facilitates prefabrication and subsequent centralized transportation and combination, and greatly facilitates construction.

[0058] Secondly, the central tube 4 connects multiple plant planting tubes 5 and multiple air permeable transverse tubes 8. The liquid in the river will enter the air permeable transverse tubes 8 and then be located in the central tube 4, so that the plant planting tubes 5 are filled with water vapor, thereby making the nutrient matrix part 7 moist, in order to trick the green plants into taking root in the pipe network formed by the central tube 4, the plant planting tubes 5 and the air permeable transverse tubes 8.

[0059] As another embodiment further provided by the present invention, L-shaped hook feet 63 are symmetrically arranged on the end surface of the first main frame 61, and the L-shaped hook feet 63 include a vertical portion, and a spherical protrusion 631 is arranged on the side of the vertical portion facing the main frame 61;

[0060] The second main frame 61 is provided with a through slot for the vertical portion to be inserted into. The end surface of the second main frame 61 is provided with an elastic clamp 64 bent into a trapezoidal structure with an oblique edge. The elastic clamp 64 is equal in length to the vertical portion, is in the same horizontal plane, and is arranged close to the through slot.

[0061] The lower bottom of the elastic clamp 64 is an arc-shaped elastic member 641 , and a hole groove for the spherical protrusion 631 to be embedded is formed on the inclined surface of the elastic clamp 64 .

[0062] Specifically, the above embodiment is combined with Figure 4 It can be seen that the openings of the L-shaped hook feet 63 are all facing downward. When multiple assembly modules are assembled, the vertical part is inserted through the through slot, and then the two assembly modules are flushed, so that the vertical part moves downward, thereby squeezing the arc-shaped elastic member 641 to deform, and the spherical protrusion 631 is inserted into the hole slot to complete the assembly. Then the central tube 4 is inserted into the assembled threaded mesh cage 6, and then the plant planting tube 5 and the air permeable horizontal tube 8 are plugged into the central tube 4 in turn to complete the installation, and finally the graded pebble filler 1 is filled in, so that the above steps are completed as a whole. Figure 2 The location distribution is shown.

[0063] As another embodiment further provided by the utility model, the outer walls of the air permeable transverse tube 8 and the central tube 4 are wrapped with a buffer layer 9. The buffer layer is a machine-made geotextile with a thickness of 930 KN / m.

[0064] Specifically, the purpose of adding the buffer layer 9 is to provide soft contact for the graded pebble filler 1 to prevent the graded pebble filler 1 from being punctured.

[0065] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A river channel vertical bank protection ecological structure, characterized in that: include: Vertical retaining walls built on both sides of the river channel (2); The active filtration belt ecological structure is placed in close contact with the side wall of the vertical retaining wall (2), and comprises: A threaded mesh cage (6) filled with graded pebble filler (1); A plant planting tube (5) vertically inserted into the threaded mesh cage (6) at a predetermined depth, wherein a nutrient matrix portion (7) planted with green plants is provided in the plant planting tube (5); Wherein, a ventilation transverse pipe (8) having one end extending toward the center of the river channel is arranged in the threaded mesh cage (6), and the ventilation transverse pipe (8) is connected to the plant planting pipe (5).

2. A river channel vertical bank protection ecological structure according to claim 1, characterized in that: The height of the threaded mesh cage (6) is greater than the annual average water level of the river channel, the ventilation transverse pipe (8) is lower than the annual average water level of the river channel, and the bottom end of the nutrient matrix part (7) is higher than the annual average water level of the river channel.

3. The vertical river bank protection ecological structure according to claim 1 is characterized in that: The nutrient matrix part (7) is composed of a cylindrical three-dimensional geonet and a filler filled in the cylindrical three-dimensional geonet.

4. The vertical river bank protection ecological structure according to claim 1 is characterized in that: The diameter of the graded pebble filler (1) is 2-8 cm.

5. The river channel vertical bank protection ecological structure according to claim 1 is characterized in that: The plant planting tube (5) is provided with air holes (10) arranged in a circumferential array, and the plurality of air holes (10) are arranged above the annual average water level of the river channel.

6. The vertical river bank protection ecological structure according to claim 1 is characterized in that: The threaded mesh cage (6) is composed of a plurality of assembly modules, wherein the assembly modules include a symmetrically arranged main frame (61) and a threaded mesh cover (62) covering the outer side surfaces of two main frames (61); Each of the assembled modules is equipped with a plant planting tube (5) and a ventilation transverse tube (8); It also comprises a central tube (4) for connecting the plurality of plant planting tubes (5) and the plurality of ventilation transverse tubes (8) in series, and the central tube (4) is located inside the threaded mesh cage (6).

7. The vertical river bank protection ecological structure according to claim 6 is characterized in that: Connecting plates (65) are symmetrically welded between the two main frames (61).

8. The vertical river bank protection ecological structure according to claim 6 is characterized in that: L-shaped hook feet (63) are symmetrically arranged in pairs on the end surface of the first main frame (61), and the L-shaped hook feet (63) include a vertical portion, and a spherical protrusion (631) is arranged on the side of the vertical portion facing the main frame (61); The second main frame (61) is provided with a through slot for the vertical portion to be inserted into, and an elastic clamp (64) bent into a trapezoidal structure with an oblique edge is provided on the end surface of the second main frame (61), the elastic clamp (64) is equal in length to the vertical portion, is located in the same horizontal plane, and is arranged close to the through slot; The lower bottom of the elastic clamp (64) is an arc-shaped elastic member (641), and a hole groove for the spherical protrusion (631) to be embedded is provided on the inclined surface of the elastic clamp (64).

9. The vertical river bank protection ecological structure according to claim 6 is characterized in that: The outer walls of the air-permeable transverse tube (8) and the central tube (4) are wrapped with a buffer layer (9).

10. A river channel vertical bank protection ecological structure according to claim 9, characterized in that: The buffer layer (9) is a 30KN / m machine-made geotextile.

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