CN211849852U

CN211849852U - Ecological grass planting ditch in sponge city

Info

Publication number: CN211849852U
Application number: CN202020419674.6U
Authority: CN
Inventors: 郝倩; 晏洪浩; 杜玉新; 王方鸽; 陈亚伟; 王辉; 邱鹏; 谢飞洋; 刘久明
Original assignee: Henan Construction Engineering Design Co ltd
Current assignee: Henan Construction Engineering Design Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-03
Anticipated expiration: 2030-03-27

Abstract

The utility model provides an ecological grass planting ditch for sponge cities, which comprises a soil base layer, wherein a coarse sand layer is arranged below the soil base layer, a gravel layer is arranged below the coarse sand layer, a first filtering geotextile is arranged between the coarse sand layer and the gravel layer, a plain soil layer is arranged below the rubble layer, a second filtering geotextile is arranged between the rubble layer and the plain soil layer, a plurality of rainwater collecting pipes are arranged below the second filtering geotextile, a transverse drain pipe is arranged below the rainwater collecting pipes and is connected with the rainwater collecting pipes through a vertical connecting pipe, a grass planting ditch soil base layer, coarse sand, a gravel layer and plain soil are arranged below the utility model in sequence, the plain soil layer is provided with the transverse drain pipe, through adopting above-mentioned technical scheme, rainy day, the rainwater assembles the grass planting ditch, and the rainwater permeates the below through the vegetation, runs into the big condition of single rainfall, and the rainwater on vegetable layer can be through the timely discharge of horizontal line drain pipe. The utility model discloses simple structure, the practicality is strong, has higher popularization and application and worth.

Description

Ecological grass planting ditch in sponge city

Technical Field

The utility model relates to an ecological protection technical field, concretely relates to ecological grass planting ditch in sponge city.

Background

In the coming of rainy seasons in China and all over the world in the present year, urban waterlogging occurs in many cities, which brings troubles to the lives of citizens and even causes the loss of lives and properties. The sponge city is a new generation of urban rainfall flood management concept, and means that the city has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, has the characteristics of excellent water seepage, pressure resistance, wear resistance, skid resistance, environmental protection, attractiveness, color, comfort, easy maintenance, sound absorption, noise reduction and the like, and can effectively relieve the urban heat island effect by forming a breathable urban landscape road. The sponge city is a city which can adapt to environmental changes and cope with natural disasters like a sponge, and when raining, the city can absorb, seep water, purify water and store water, and the stored water is released and utilized when needed. Sponge city construction should follow ecological priority principle etc. combines together natural way and artificial measures, under the prerequisite of guaranteeing urban drainage waterlogging prevention safety, furthest realizes that rainwater stores up, permeates and purifies in the urban area, promotes the utilization of rainwater resource and ecological environment protection. The construction of the sponge city is not a way of putting the weight down and replacing the traditional drainage system, but a way of reducing burden and supplementing the traditional drainage system, and the self effect of the city is exerted to the greatest extent. In the sponge city construction process, the systematicness of natural rainfall, surface water and underground water is planned, water recycling links such as water supply and drainage are coordinated, and the complexity and the long-term property of the links are considered.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem such as urban waterlogging, the utility model provides an ecological grass planting ditch in sponge city.

The purpose of the utility model is realized with the following mode:

the utility model provides an ecological grass planting ditch in sponge city, includes soil basic unit, soil basic unit below is equipped with coarse sand layer, and coarse sand layer below is equipped with the metalling, is equipped with first filtration geotechnological cloth between coarse sand layer and the metalling, the metalling below is equipped with plain soil layer, it filters geotechnological cloth to be equipped with the second between metalling and the plain soil layer, the second filters geotechnological cloth below and is equipped with a plurality of rainwater collecting pipe, rainwater collecting pipe below is equipped with horizontal drain pipe, and horizontal drain pipe passes through vertical connecting pipe and connects the rainwater collecting pipe.

The upper surface of the soil base layer is a sunken arc-shaped surface.

The rainwater collecting pipe and the vertical connecting pipe are formed by integral injection molding, and the vertical connecting pipe is connected with the connecting hole of the transverse drain pipe.

Compared with the prior art, the utility model discloses the below has horizontal drain pipe for grass planting ditch soil basic unit, coarse sand, metalling and plain soil in proper order in the plain soil layer, and through adopting above-mentioned technical scheme, rainy day, the rainwater assembles the grass planting ditch, and the rainwater permeates the below through the vegetation, runs into the big condition of single rainfall, and the rainwater of vegetable layer can be through the timely discharge of horizontal line drain pipe. The utility model discloses simple structure, the practicality is strong, has higher popularization and application and worth.

Drawings

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

The soil-base soil-.

Detailed Description

As shown in the attached drawing 1, an ecological grass planting ditch in sponge city, including soil basic unit 1, soil basic unit 1 below is equipped with coarse sand layer 2, and coarse sand layer 2 below is equipped with metalling 3, is equipped with first filtration geotechnological cloth 4 between coarse sand layer 2 and the metalling 3, metalling 3 below is equipped with plain soil layer 9, be equipped with the second between metalling 3 and the plain soil layer 9 and filter geotechnological cloth, metalling 3 is filtered geotechnological cloth 4 by first filtration geotechnological cloth 4 and second and is wrapped up, and metalling 3 has filterable effect, the second is filtered geotechnological cloth below and is equipped with a plurality of rainwater collecting pipe 5, rainwater collecting pipe 5 below is equipped with horizontal drain pipe 7, and horizontal drain pipe 7 passes through vertical connecting pipe 6 and connects rainwater.

The upper surface of the soil base layer 1 is a sunken arc-shaped surface, the lower end of the gravel layer 3 is paved with a rainwater collecting pipe 5, the rainwater collecting pipe 5 is connected with a vertical connecting pipe 6, and the vertical connecting pipe 6 is connected with a transverse drain pipe 7. The cross section of the transverse drainage pipe 7 is a circular pipe, a transverse connecting pipe 8 is arranged between the transverse drainage pipes 7, and the transverse connecting pipe 8 is used for communicating the transverse drainage pipes 7 to prevent the transverse drainage pipes 7 from being blocked and cannot drain water timely.

The particle size range of the crushed stone layer 3 is 5-20 mm.

In order to prevent particles such as soil from entering the gravel layer 3, a layer of filter geotextile is respectively paved between the coarse sand and the gravel layer 3 and between the gravel layer 3 and the plain soil layer 9, and the mass per unit area is 300g/m 2.

The rainwater collecting pipe 5 and the vertical connecting pipe 6 are formed by integral injection molding, and the vertical connecting pipe 6 is connected with the connecting hole of the transverse drain pipe 7.

The working process of the utility model is as follows: greening vegetation is planted on the upper end surface of the soil base layer 1, the greening vegetation can be herbaceous plants or woody plants, or the combination of herbaceous plants and woody plants, realizes the ecological diversification, when rainfall exists, the rainwater flows into the arc-shaped surface of the soil base layer 1, the arc-shaped surface plays a good role in collecting rainwater, if the single rainfall is large, the rainwater moves to the lower part of the soil base layer 1 under the action of gravity and passes through the coarse sand layer 2, the impurities in the rainwater are basically filtered after the first filtering geotextile 4 is filtered, then the crushed stone layer 3 is filtered, the second filtering geotextile is used for carrying out the second filtering, the rainwater is stored in the plain soil layer 9, when the single rainfall is large, excessive rainwater can enter the vertical connecting pipe 6 through the rainwater collecting pipe 5, and then enter the transverse drain pipe 7 through the vertical connecting pipe 6 to be discharged in time.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides an ecological grass planting ditch in sponge city, includes soil base, its characterized in that: soil basic unit below is equipped with coarse sand layer, and coarse sand layer below is equipped with the metalling, is equipped with first filtration geotechnological cloth between coarse sand layer and the metalling, the metalling below is equipped with plain soil layer, it filters geotechnological cloth to be equipped with the second between metalling and the plain soil layer, the second filters geotechnological cloth below and is equipped with a plurality of rainwater collecting pipe, rainwater collecting pipe below is equipped with horizontal drain pipe, and horizontal drain pipe passes through vertical connecting pipe and connects the rainwater collecting pipe.

2. The ecological grass planting ditch in sponge city of claim 1, characterized in that: the upper surface of the soil base layer is a sunken arc-shaped surface.

3. The ecological grass planting ditch in sponge city of claim 1, characterized in that: the rainwater collecting pipe and the vertical connecting pipe are formed by integral injection molding, and the vertical connecting pipe is connected with the connecting hole of the transverse drain pipe.