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Integrated green belt system and drainage and water retention method based on drainage and water retention

An integrated technology for green belts, applied in soil drainage, botanical equipment and methods, roads, etc., can solve problems affecting roadbed safety, poor water retention performance, water and soil loss in green belts, etc., and achieve the effect of increasing the green area

Active Publication Date: 2016-03-02
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing green belts are higher than the road surface. Although the precipitation in the green belt can be removed in time, it is easy to cause soil erosion in the green belt. In case of continuous precipitation, it is easy to form water accumulation at the bottom of the green belt after infiltration, which may affect the safety of the roadbed; another On the one hand, backfill soil is directly used as the planting base, and the water retention performance is also poor, so regular spraying and maintenance are often required

Method used

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  • Integrated green belt system and drainage and water retention method based on drainage and water retention
  • Integrated green belt system and drainage and water retention method based on drainage and water retention
  • Integrated green belt system and drainage and water retention method based on drainage and water retention

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Embodiment 1

[0019] An integrated green belt system based on drainage and water retention, comprising: a planting soil layer 5 planted with plants 1 with a thickness of 100 to 200 mm, a drainage and water retention system 2 is provided under the planting soil layer 5, and a drainage and water retention system 2 There is an impermeable material layer 9 below, the planting soil layer 5 is in the shape of a concave arc, and the filter drainage and water retention system 2 is composed of a sand permeable layer 6 in a concave shape (fine sand with a particle size of 0.075mm to 0.5mm and medium sand at a ratio of 3:1), the gravel material permeable layer 7 in a concave shape (composed of coarse sand and fine gravel with a particle size of 0.5mm to 5mm in a ratio of 1:1), and the upper surface is concave and lower The gravel permeable layer 8 (composed of medium gravel, coarse gravel and crushed stone with a particle size of 5 mm to 100 mm in a ratio of 1:1:1) with a convex arc shape on the surfac...

Embodiment 2

[0022]A method for drainage and water retention of an integrated green belt system. A ditch is dug at the green belt to be built, and an impermeable material layer 9 in the shape of an upward convex arc is placed at the bottom of the ditch, and at the highest point of the impermeable material layer 9 A drain hole 10 is provided, and the drain hole 10 is covered with a water-permeable filter screen 11, and the drain hole 10 is connected to the municipal drainage pipe network; the upper surface is concave and the lower surface is convex on the impermeable material layer 9. The arc-shaped gravel permeable layer 8, the gravel permeable layer 7 in the concave shape, the sand permeable layer 6 in the concave shape, and the planting soil layer 5 in the concave arc shape, in the gravel permeable layer 8, the gravel material The gravity holding channel array 3 is set in the permeable layer 7 and the sand permeable layer 6, and one end of a row of gravity holding channels in the gravity ...

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Abstract

Provided are an integrated green belt system based on flood drainage and water conservation and a flood drainage and water conservation method. The system comprises a planting soil layer with plants planted, a filter and drainage water conservation system and a waterproof material layer are arranged on the lower portion, the filter and drainage water conservation system is formed by stacking an inward concave sand permeable layer, a sand-gravel material permeable layer and a gravel permeable layer, the waterproof material layer is in an upward protruding arc shape, and gravity water holding and flood draining channel arrays are arranged in the filter and drainage water conservation system and vertically penetrate through the filter and drainage water conservation system. According to the method, the waterproof material layer in the upward protruding arc shape is arranged, water drainage holes are formed in the highest position of the waterproof material layer, the gravel permeable layer in an upward protruding arc shape, the sand-gravel material permeable layer in a downward concave shape, the sand permeable layer and the planting soil layer are laid on the waterproof material layer in sequence, and the gravity holding and draining channel arrays are arranged in the gravel permeable layer, the sand-gravel material permeable layer and the sand permeable layer.

Description

technical field [0001] The invention relates to the problem of rainwater removal and water conservation measures in isolated green belts of urban roads, in particular to an integrated green belt system based on drainage and water conservation and a method for drainage and water conservation. Background technique [0002] The central isolation and greening of urban roads has multiple functions such as separating lanes, increasing green space, reducing road traffic pollution, and beautifying the city. Most of the existing green belts are higher than the road surface. Although the precipitation in the green belt can be removed in time, it is easy to cause water and soil loss in the green belt. In case of continuous precipitation, it is easy to form water at the bottom of the green belt after infiltration, which may affect the safety of the roadbed; another On the one hand, the planting base is directly filled with backfill soil, which has poor water retention performance and of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00E01F15/00E02B11/00
Inventor 薛联青迟艺侠王思琪暴瑞玲汪朱华何新林汤骅杨广
Owner HOHAI UNIV
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