CN215758805U

CN215758805U - River bank filter belt

Info

Publication number: CN215758805U
Application number: CN202121597899.1U
Authority: CN
Inventors: 安树青; 朱正杰; 张静涵; 康晓光; 陈佳秋; 安迪
Original assignee: Nanda Changshu Research Institute Co ltd
Current assignee: Nanda Changshu Research Institute Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-02-08
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a river bank filter belt which comprises a T-shaped brick construction belt paved between the highest water level line and the lowest water level line of a flood plain, wherein the T-shaped brick construction belt comprises a plurality of T-shaped bricks which are sequentially arranged, porous ceramsite is filled in the T-shaped bricks, and emergent aquatic plants are planted on the porous ceramsite. The utility model simultaneously meets the requirements of reinforcing and protecting the surface layer of the side slope, intercepting sewage, reducing the water pollution of a river channel and recovering the vegetation of a river bank, and integrates three functions into a whole.

Description

River bank filter belt

Technical Field

The utility model relates to the technical field of ecological restoration, in particular to a riverbank filter belt.

Background

The river bank filter belt is a junction of a river ecosystem and a land ecosystem and bears double stress from water flow and land. The river bank filter belt is generally distributed in a long and narrow shape, and has a unique ecological process and obvious edge effect. The unique ecological process means that the river bank filter belt area has unique vegetation, soil, topography, landform and hydrological characteristics, the non-uniform environment provides sufficient breeding, growing and hiding places for organisms, and the river bank filter belt area has unique ecological system service functions of storing water, regulating runoff, maintaining water and soil and the like. The edge effect is reflected in the aspects of surface runoff, slope scouring, river water erosion and the like, and causes soil loss of the river bank filter belt. In addition, with the acceleration of urbanization process in China, surface runoff often carries a large amount of organic pollution and nitrogen and phosphorus pollutants into a river channel, so that the content of nutrient elements such as nitrogen, phosphorus and the like in the river is too high and far exceeds the self-purification capacity of a water body, and the water quality is gradually deteriorated.

In the construction process of the river bank filter belt, on one hand, soil needs to be stabilized, and the damage of a river bank structure caused by water flow erosion is reduced; on the other hand, chemical pollutants are intercepted and adsorbed, and the water quality is purified; in addition, the vegetation restoration and beautification of the riparian zone are considered, and the quality of the biological habitat is improved. The existing river bank filter belt has single function, and can not meet the requirements of slope surface layer reinforcement and protection, the requirements of intercepting sewage and reducing river water pollution and the requirements of river bank vegetation restoration at the same time.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a river bank filter belt, which simultaneously meets the requirements of reinforcing and protecting the surface layer of a side slope, intercepting sewage, reducing the water pollution of a river channel and recovering the vegetation of the river bank, and integrates three functions into a whole.

In order to solve the technical problem, the utility model provides a river bank filter belt which comprises a T-shaped brick construction belt paved between the highest water level line and the lowest water level line of a flood plain, wherein the T-shaped brick construction belt comprises a plurality of T-shaped bricks which are sequentially arranged, porous ceramsite is filled in the T-shaped bricks, and emergent aquatic plants are planted on the porous ceramsite.

Preferably, a brick fixing fork is arranged on the T-shaped brick and penetrates through the T-shaped brick to be fixed on the flood plain.

Preferably, the T-shaped bricks are provided with holes, and the brick fixing forks penetrate through the holes to be fixed on the flood plain.

Preferably, the T-shaped brick is of a hollow structure, and the porous ceramsite is filled in the hollow part of the T-shaped brick.

Preferably, the holes are formed in two sides of the hollow part of the T-shaped brick.

Preferably, the particle size of the porous ceramsite is 1mm-3 mm.

Preferably, the width of the T-shaped brick is 0.15m, the length of the T-shaped brick is 0.3m, and the thickness of the T-shaped brick is 15 cm.

Preferably, the T-shaped bricks are laid in sequence according to the width of the flood plain.

Preferably, the top of the emergent aquatic plant is higher than the highest water level line of the flood beach.

The utility model has the beneficial effects that: the river bank filter belt is laid on the flood plain land, surface runoff can be reduced, surface water flow erosion can be prevented, soil can be fixed, and river bed displacement can be prevented;

the adsorption brick is designed into a T-shaped brick shape, the T-shaped hollow part is used for filling porous ceramsite, the contact area of the ceramsite and a water body is increased, and meanwhile, the T-shaped brick can preserve heat and insulate heat, adjust the temperature and is beneficial to planting emergent aquatic plants;

the filler in the T-shaped brick is porous ceramsite, so that on one hand, organic pollution and nitrogen and phosphorus pollutants brought into a river channel by ground runoff can be effectively and rapidly absorbed, on the other hand, a proper rooting environment can be provided for planted plants, and meanwhile, emergent aquatic plants can fix the porous ceramsite and increase the migration resistance of the ceramsite, so that the stability of the porous ceramsite is improved, and the loss of the porous ceramsite is prevented;

emergent aquatic plants can deliver oxygen to sediments through root systems, so that the oxidation-reduction conditions of the sediments are improved, and the release of nitrogen, phosphorus and other nutritive salts is reduced; a good root zone environment is provided for the microorganisms, and the activity and biomass of the microorganisms are increased; the sediment at the bottom of the river is fixed, and the resuspension of the sediment is reduced; can directly absorb nutrient salt and increase the purification capacity of the water body; meanwhile, the method can also generate high ornamental value and has the function of beautifying the river channel.

Drawings

FIG. 1 is a schematic cross-sectional view of a riparian filter belt of the present invention;

FIG. 2 is a top view of the T-shaped tile of the present invention;

the reference numbers in the figures illustrate: 1. the highest water line of a flood beach; 2. the lowest water line of the flood plain; 3. a T-shaped brick construction belt; 4. emerging plants; 5. t-shaped bricks; 6. porous ceramsite; 7. and (4) holes.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

As shown in fig. 1 and 2, the embodiment provides a bank filter belt, which includes a T-shaped brick construction belt 3 laid between a highest water level line 1 of a flood plain and a lowest water level line 2 of the flood plain, wherein the T-shaped brick construction belt 3 includes a plurality of T-shaped bricks 5 arranged in sequence, porous ceramsite 6 is filled in the T-shaped bricks 5, and emergent aquatic plants 4 are planted on the porous ceramsite 6.

Specifically, in the implementation process, the water level of a river channel is investigated, the highest water level line 1 and the lowest water level line 2 in a river channel are defined, and the flood plain range of the river is determined; when the river bank filter belt is constructed, one or more layers of T-shaped bricks 5 are laid in sequence along the direction from the lowest water level line 2 to the highest water level line 1 according to the width of a flood plain to form a T-shaped brick construction belt 3, the T-shaped brick construction belt 3 takes the T-shaped bricks 5 which take porous ceramsite 6 as main filling materials as a base layer, and emergent aquatic plants 4 are planted on the filling materials. Emergent aquatic plants 4 planted on the filler should satisfy the following conditions: the ecological water-saving fertilizer is a perennial plant, can adapt to local hydrological climate, is good for local species, has developed root system, stronger stress resistance, safety, no toxicity, stronger purification capacity, ecological safety and certain ornamental value.

Specifically, a brick fixing fork is arranged on the T-shaped brick 5 and penetrates through the T-shaped brick 5 to be fixed on the flood plain. The T-shaped bricks 5 are provided with the holes 7, and the brick fixing forks penetrate through the holes 7 to be fixed on the flood plain, namely, when the bricks are laid, the brick fixing forks are inserted into the holes 7 of the T-shaped bricks 5, so that the T-shaped bricks are fixed, and the T-shaped bricks 5 are prevented from being washed away by water flow. The width of the T-shaped brick 5 that can be used in this embodiment is 0.15m, the length is 0.3m, the thickness is 15cm, and the size design can be specifically carried out according to the actual scene. And the T-shaped bricks 5 are laid in sequence according to the width of the flood plain, so that the operation is convenient.

Further, referring to fig. 2, the T-shaped brick 5 is a hollow structure, the hollow part of the T-shaped brick is filled with porous ceramsite 6, and the holes 7 are formed in two sides of the hollow part of the T-shaped brick, so that the filling space is not affected, and the structural stability is ensured.

Furthermore, the filled substrate is a porous ceramsite material 6, the particle size of the porous ceramsite 6 is 1mm-3mm, and the porous ceramsite has the characteristics of large specific surface area, rich pore structure, good nitrogen and phosphorus adsorption effect and the like.

Further, the top end of the emergent aquatic plant 4 is higher than the highest water level 1 of the flood beach, namely when the plant is planted, the emergent aquatic plant 4 is ensured not to be submerged by the highest water level, so that the healthy growth of the emergent aquatic plant is ensured.

The utility model has both ecological service function and engineering protection function. The ecological service function is embodied as intercepting rainwater and preventing rainwater from splashing and corroding; the surface runoff is reduced, and the surface water erosion is prevented; the sewage is intercepted, the water quality is purified, and the non-point source pollution is reduced; improving the quality of the biological habitat; various functions such as landscape diversity are improved. The engineering protection effect is mainly to reduce the pore water pressure of the slope body through vegetation, weaken the splash erosion and inhibit the soil erosion of the slope; the overlarge temperature change of the bank slope is prevented, and the effect of stabilizing the temperature of the water body is achieved; through the reinforcement effect of root system, can increase the migration resistance of the soil body, improve the resistance of soil layer to domatic slip to improve domatic stability, prevent soil erosion and water loss.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A riverbank filter belt is characterized by comprising a T-shaped brick construction belt paved between the highest water level line and the lowest water level line of a flood plain, wherein the T-shaped brick construction belt comprises a plurality of T-shaped bricks which are sequentially arranged, porous ceramsite is filled in the T-shaped bricks, and emergent aquatic plants are planted on the porous ceramsite.

2. The riparian filter belt of claim 1, wherein the T-shaped bricks are provided with brick fixing forks, and the brick fixing forks are fixed on the floodflats through the T-shaped bricks.

3. The riparian filter belt of claim 2, wherein the T-shaped bricks are provided with holes, and the brick fixing forks are fixed on the floodbank through the holes.

4. The riparian filter belt according to claim 3, wherein the T-shaped brick is a hollow structure, and the hollow part of the T-shaped brick is filled with the porous ceramsite.

5. The riparian filter belt according to claim 4, wherein the holes are formed at both sides of the hollow part of the T-shaped brick.

6. The riparian filter belt according to claim 1, wherein the porous ceramsite has a particle size of 1mm to 3 mm.

7. A riparian filter belt according to claim 1, wherein the T-shaped brick has a width of 0.15m, a length of 0.3m and a thickness of 15 cm.

8. The riparian filter belt of claim 1, wherein the T-shaped bricks are laid in sequence according to the width of the flood plain.

9. A riparian filter belt according to any of claims 1-8, wherein the emergent aquatic plants have a top end above the highest water level of the floods.