Apparatus for establishing urban water-through surface water collection effect test

Abstract

The invention belongs to the technical field of research devices for water and soil conservation, and discloses a device for establishing a water-collecting effect test for urban water permeable surfaces. The device is characterized by mainly comprising a radial flow measuring device, a rainfall infiltration test surface and a rainfall simulator. The radial flow measuring device comprises a collecting groove, a collecting tank, a synchronous micro diving pump, a radial flow tank, an adjustable water control valve and a stop watch part, and adopts a transfer type measuring method to measure radial flow. The rainfall infiltration test surface uses a combined steel plate pile as a side wall to separate out an observation surface; the rainfall simulator comprises a rainfall spray head, an adjustable flat base and a water supply system; and a base bracket can keep horizontal through adjusting three lead screws respectively, so that the device is suitable for various sloping surfaces. The water supply system mainly comprises a water control valve, a water supply tank with primary and secondary structures, a first diving pump and a second diving pump. The secondary tank is positioned in the primary tank. The device has the effects and advantages of little influence on surrounding environment, accuracy and flexibility, little water usage, and low cost.

Description

Technical field [0001] The invention belongs to the technical field of water and soil conservation research devices, and relates to a device used to establish a water collection effect test of urban permeable surfaces. It is a rainfall simulation test system suitable for urban roads. The device can measure the permeability of the underlying surface on site , To obtain relevant information on rainwater collection. Background technique [0002] Building components that construct urban permeable surfaces, such as permeable pipes and permeable concrete blocks, are relatively large in volume. Obviously, it is impossible to directly observe the seepage effect of the permeable surface with conventional instruments for observing soil infiltration rate; in general, it must be based on the structure of the permeable surface. Form, refer to the measurement method of soil water permeability, design a special test device for observation. [0003] In Schlüter et al. [Schlüter W, Jefferies C. Mo...

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Problems solved by technology

[0004] Part of the existing measurement system is to dig a large pit directly on the test site and then put the collecting bucket or other devices into it for measurement; from the existing test device, it can be seen that the test equipment has the following shortcomings: the test equipment is not flexible enough , it is not convenient for transportation and movement; due to the position of the water collection tank, the test site needs to be excavated a lot, which will cause great damage to the test site and reduce the test efficiency; tests generally require a lot of water, and the existing devices waste a lot of water resources

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