CN214116523U

CN214116523U - A step overflow weir for urban river ecological management

Info

Publication number: CN214116523U
Application number: CN202021794428.5U
Authority: CN
Inventors: 丁志良; 吴从林; 李逸之; 孙凌凯; 李彬彬; 邵军荣
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-09-03
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a step overflow weir for urban river ecological management, which is formed by laying an ecological weir bottom plate (1) and a stilling pool (2) along the water flow direction, wherein the tops of the ecological weir bottom plate (1) and the stilling pool (2) are provided with a river pebble layer (3), and the bottoms of the ecological weir bottom plate and the stilling pool are provided with concrete cushions (5); the start and stop ends of the ecological weir bottom plate (1) are provided with tooth walls (1.1) and extend into a river bed, and the cobble layer (3) is cast and connected with the ecological weir bottom plate (1) and the stilling pool (2) into a whole by adopting cement mortar; the water purifier overcomes the defects of single appearance type, hardness, and poor ecological and landscape properties in the prior art, and has the advantage of purifying water quality.

Description

A step overflow weir for urban river ecological management

Technical Field

The utility model relates to ecological hydraulic engineering technical field, more specifically is a step overflow weir for urban river ecological management.

Background

In the city river channel treatment engineering, for guaranteeing river course view water level, often need use the weir to block up high water level, the type of weir commonly used has practical weir, wide top weir and thin wall weir etc. generally adopts concrete or grout stone structure pattern, and this type of structure outward appearance pattern is single, stiff, and ecological, view nature are poor, and is inconsistent with the new theory of ecological river of new period, consequently need explore one kind promptly and can satisfy the retaining functional need, has ecological and view nature's novel overflow weir again concurrently.

Disclosure of Invention

The utility model aims to overcome the weak point of above-mentioned background art, and provide a step overflow weir for urban river ecological management.

The utility model aims at being implemented through the following technical scheme: a step overflow weir for urban river ecological management comprises an ecological weir bottom plate, a stilling pool, a cobble layer, an aquatic plant layer, a concrete cushion layer and a drain pipe;

the ecological weir bottom plate and the stilling pool are paved along the water flow direction, the tops of the ecological weir bottom plate and the stilling pool are both provided with a cobble layer, and the bottoms of the ecological weir bottom plate and the stilling pool are both provided with a concrete cushion layer; the start and stop ends of the ecological weir bottom plate are provided with tooth walls and extend into the riverbed,

the cobble layer is cast and connected with the ecological weir bottom plate and the stilling pool into a whole by adopting cement mortar;

a plurality of rows of drainage pipes are arranged at the slope starting points of the bottom plate of the ecological weir at equal intervals.

In the above technical scheme: the drain pipe is made of DN300PVC, and the embedding interval of the drain pipe is 2 meters.

In the above technical scheme: the stilling pool and the concrete cushion are formed by pouring C20 concrete.

In the above technical scheme: the thickness of the bottom plate of the ecological weir is 0.5-1 meter, and the thickness along the direction of water flow is from small to large.

In the above technical scheme: the thickness of the cobble layer is 0.3-1 m.

In the above technical scheme: the aquatic plant layer is positioned in the gap in the cobble layer.

The utility model has the advantages of as follows: 1. the utility model discloses nature is pressed close to the outward appearance, and the pedestrian can walk on the overflow weir and play, has satisfied people's close psychological needs of nature.

2. The utility model discloses overflow weir surface is the natural stone of laying stones, and the stone surface provides for the microorganism and adheres to the place, and has planted aquatic plant between the stone of laying stones, and the part has formed little ecosystem, has played water purification's effect to a certain extent.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: ecological weir bottom plate 1, dental wall 1.1, stilling pool 2, cobble layer 3, aquatic plant layer 4, concrete cushion 5, drain pipe 6, the arrow in the figure shows the water flow direction.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, but they are not to be construed as limiting the invention, and are presented by way of example only, and the advantages of the invention will become more apparent and can be easily understood by description.

Referring to FIG. 1: a step overflow weir for urban river ecological management comprises an ecological weir bottom plate 1, a stilling pool 2, a cobble layer 3, an aquatic plant layer 4, a concrete cushion layer 5 and a drain pipe 6;

the ecological weir bottom plate 1 and the stilling pool 2 are paved along the water flow direction, the tops of the ecological weir bottom plate 1 and the stilling pool 2 are both provided with a cobble layer 3, and the bottoms of the ecological weir bottom plate 1 and the stilling pool 2 are both provided with a concrete cushion layer 5; the start and stop ends of the ecological weir bottom plate 1 are provided with tooth walls 1.1 and extend into the riverbed,

the cobble layer 3 is cast and connected with the ecological weir bottom plate 1 and the stilling pool 2 into a whole by adopting cement mortar;

a plurality of rows of drain pipes 6 are arranged at the slope starting points of the ecological weir bottom plate 1 at equal intervals.

The drain pipe 6 is made of DN300PVC, and the embedding interval of the drain pipe 6 is 2 meters; the stilling pool 2 and the concrete cushion 5 are formed by pouring C20 concrete.

The thickness of the ecological weir bottom plate 1 is 0.5-1 meter, and the thickness along the water flow direction is from small to large; the thickness of the cobble layer 3 is 0.3-1 meter.

The aquatic plant layer 4 is positioned in the gap in the cobble layer 3.

The utility model discloses still include following specific use: the utility model discloses constitute ecological step overflow weir jointly by ecological weir bottom plate 1, stilling pond 2, cobble layer 3, aquatic plant layer 4, concrete cushion 5 and drain pipe 6. The utility model discloses when establishing the operation, rivers will go up to down flow, loop through aquatic plant layer 4, the cobble layer 3 on ecological weir bottom plate 1 upper portion to and the cobble layer 3 on 2 upper portions of stilling pool, and form the waterfall form at ecological

weir bottom plate

1 and 2 boundary positions in stilling pool, increase water landscape effect. When upstream river channels need to be desilted and cleaned, upstream accumulated water can be emptied through the water discharge pipe 6.

The above-mentioned parts not described in detail are prior art.

Claims

1. The utility model provides a step overflow weir for ecological improvement of city river course which characterized in that: the ecological weir comprises an ecological weir bottom plate (1), a stilling pool (2), a cobble layer (3), an aquatic plant layer (4), a concrete cushion layer (5) and a drainage pipe (6);

the ecological weir bottom plate (1) and the stilling pool (2) are paved along the water flow direction, the tops of the ecological weir bottom plate (1) and the stilling pool (2) are provided with cobble layers (3), and the bottoms of the ecological weir bottom plate and the stilling pool are provided with concrete cushions (5); the start and stop ends of the ecological weir bottom plate (1) are provided with tooth walls (1.1) and extend into the riverbed,

the cobble layer (3) is cast and connected with the ecological weir bottom plate (1) and the stilling pool (2) into a whole by adopting cement mortar;

a plurality of rows of drain pipes (6) are arranged at the slope starting points of the ecological weir bottom plate (1) at equal intervals.

2. The step overflow weir for the ecological management of urban river channels according to claim 1, wherein: the drain pipe (6) is made of DN300PVC, and the interval between the drain pipe (6) and the ground is 2 meters.

3. The step overflow weir for the ecological management of urban river channels according to claim 1, wherein: the stilling pool (2) and the concrete cushion (5) are formed by pouring C20 concrete.

4. The step overflow weir for the ecological management of urban river channels according to claim 1, wherein: the thickness of the ecological weir bottom plate (1) is 0.5-1 m, and the thickness along the water flow direction is from small to large.

5. The step overflow weir for the ecological management of urban river channels according to claim 1, wherein: the thickness of the cobble layer (3) is 0.3-1 m.

6. The step overflow weir for the ecological management of urban river channels according to claim 1, wherein: the aquatic plant layer (4) is positioned in the gap in the cobble layer (3).