Improving method of intercepting ditch and intercepting ditch based on sponge urban runoff accumulation
A technology of sponge city and intercepting ditches, which is applied in the direction of waterway system, sewage discharge, water supply equipment, etc., can solve the problems of influence of research results and long time consumption, and achieve the goal of preventing soil erosion, quick landscape effect and natural landscape effect Effect
Pending Publication Date: 2018-12-18
GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER
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Problems solved by technology
If the traditional intercepting ditch is used, the water cannot penetrate into the intercepting ditch of the solid wall during the runoff infiltration process o
Method used
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[0033] Example 1:
[0034] see attached Image 6 , the above-mentioned intercepting ditch based on sponge city runoff, the inner and side walls 2 of the two forms of the lower ditch have water permeability, and the soil flow in the process of infiltration from high to low, the two forms of intercepting ditch The side wall scupper hole 4 penetrates into the lower ditch body, and the water flow is collected in the ditch body and flows into the connected flow measuring ditch. The drain hole 4 flows into the upper ditch body, collects the small flow of water in the ditch body, flows into the flow measuring ditch connected to the upper ditch body, and uses the upper ditch body flow measuring instrument 8 on the flow measuring ditch to measure the flow .
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The invention discloses an improving method of an intercepting ditch and the intercepting ditch based on sponge urban runoff accumulation. The ditch adopts two upper and lower ditch structures, two ditches share one outer side wall, and a drain hole is formed in the outer side wall or a stone cage retaining wall is used for constructing to form a water discharge structure, so that the side wall has water permeability and infiltrated water flows can penetrate into the intercepting ditch through the drain hole or the stone cage retaining wall. The ditches of the lower side of the intercepting ditch can combine with the characteristic of large infiltration rate of rainwater in the sponge urban runoff, so that infiltrated inter-flows are discharged into the intercepting ditch through the drainhole of the inner side so as to conveniently collect the inter-flows in the intercepting ditch, and flow, water quality and the like of the inter-flows are observed and tested; the ditch on the upperside can collect water flows of small flow on the ground surface, and the flow and the like of the water flows on the ground surface are observed to overcome the shortcomings of the prior art.
Description
technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a method for improving an intercepting ditch and an intercepting ditch based on runoff accumulation in a sponge city. technical background [0002] Sponge city is a new generation of urban stormwater management concept. It refers to the city's good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water elastic city". The international general term is "low-impact development stormwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water for use when needed. [0003] The intercepting ditch, also known as the gutter, is a ditch set up outside the top of the cutting slope to intercept the water flowing to the subgrade on the hillside (the specification stipulates that the distance from the outer ed...
Claims
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Login to view more IPC IPC(8): E03F5/10E03F1/00
CPCE03F1/00E03F5/10E03F5/102E03F5/105
Inventor 李析男刘颖赵先进罗志远余红敏杨荣芳
Owner GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER
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