Research device and method for detecting permeable rate attenuation and recovery effect of permeable pavement
A technology of permeable pavement and water permeability, which is applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., which can solve the problem of the change of permeation rate and operating life of the wrong permeable pavement system, and the inability to simulate rainwater runoff. Uniform distribution and other issues, to achieve the effect of simple research method and accurate simulation
Inactive Publication Date: 2018-08-17
BEIJING FORESTRY UNIVERSITY
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[0004] One of the biggest drawbacks of the above-mentioned prior art is that when the water flows to the surface of the trough of the permeable pavement system, the outlet pipe is directly placed on the center point of the surface layer. It cannot be evenly distributed to the entire system, but the natural rainfall and pavement runoff under actual conditions will flow evenly to the entire permeable pavement. The above obviously wrongly estimated the change in the permeation rate of the permeable pavement system and the operating life
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[0037] Such as figure 2As shown, it includes two plastic white buckets of different sizes (the size of the big bucket is designed according to the total annual rainfall in Beijing, and the size of the small bucket is designed under the premise of ensuring that the amount of water in the experiment is appropriate to fully mix the rainwater runoff ), an alloy shelf for small buckets, three transparent plexiglass tanks, a water-permeable perforated iron plate under the plexiglass tanks, a water outlet with a quadrangular pyramid-shaped closure welded around the bottom of the tank, and a plastic bucket under the water outlet to collect water runoff, Agitators of large and small sizes, water pumps for pumping water, and water pipes at the bottom of small buckets are equipped with valves to control the flow through each glass tank. There are perforated iron plates above the glass tanks, and iron grids are placed on the iron plates.
[0038] The size of the three transparent plexigl...
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The invention discloses a research device and method for detecting the permeable rate attenuation and recovery effect of permeable pavement. The device comprises a large bucket with prepared simulatedrainfall runoff, a small bucket with prepared simulated rainfall runoff, and one or more organic glass groove filled with a permeable pavement system. A large stirring device is arranged in the largebucket. A small stirring device is arranged in the small bucket. The large bucket and the small bucket are communicated with each other by a pressurized water pump. The water outlet pipe of the smallbucket is provided with a water pump. The water pipe in the outlet of the water pump is provided with sprinklers, which are above each organic glass groove. The bottom of each organic glass groove isprovided with a perforated drainage plate and a water receiving barrel. The natural rainfall runoff is simulated in the large bucket, the time-varying permeable rate of permeable pavement can be detected, the recovery effects of different cleaning methods can be studied, and finally the service life of the permeable pavement can be estimated based on the blocking mark. The research method is simple and efficient, the simulation is accurate, and the desired result can be obtained within a short period.
Description
technical field [0001] The invention relates to a research device for a permeable pavement, in particular to a research device and method for detecting the attenuation and restoration effect of the water permeability of the permeable pavement. Background technique [0002] The continuous development of urbanization has led to a significant increase in the proportion of impervious surfaces, which has caused a series of environmental problems such as an increase in surface flood peak flow, a decline in groundwater levels, and water pollution. Permeable pavement is a technical measure applied to the sponge city concept proposed in my country. A large number of related researches on permeable pavement have been carried out abroad, but domestic research on permeable pavement started relatively late. Studies have shown that permeable pavement can effectively reduce runoff, purify rainwater runoff water quality, and recharge groundwater. However, there will be a series of problems...
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IPC IPC(8): G01N15/08
CPCG01N15/082G01N15/088
Inventor 张守红李美玉王云琦李睿贤王任重远
Owner BEIJING FORESTRY UNIVERSITY