Large-sized previous concrete blocking simulation device and retained particle measuring method

Abstract

The invention discloses a large-sized previous concrete blocking simulation device and a retained particle measuring method and belongs to the field of perviousness test for pervious concrete. The large-sized previous concrete blocking simulation device comprises a fixing support, a blocking simulation sample box, a rainfall simulation device and a surface runoff simulation device; the rainfall simulation device and the surface runoff simulation device are utilized to simulate dust particle retention in a previous concrete sample under rainfalls different in strength and pavement runoffs; thesimulated conditions are closer to that of a real service scene of a pervious pavement; the real conditions of the pervious concrete pavement can be better simulated; a cylindrical small sample is utilized to collect retention data of the particles in the pervious concrete; the influences upon pervious concrete pore blocking from the factors, such as different rainfall strengths, pavement runoff strengths and quantity of rainfalls can be simulated; accuracy of the pervious concrete blocking test is improved; the device herein has the advantages of simple structure, good operational convenience, good test data accuracy and the like.

Description

technical field [0001] The invention relates to a permeable concrete detection device, in particular to a large-size permeable concrete blockage simulation device and a method for measuring retained particles. Background technique [0002] With the rapid development of urbanization, the hard surface area increases rapidly, which directly destroys the function of the soil to naturally infiltrate rainwater, and the surface runoff increases during rainfall, causing a series of water, ecological and environmental problems such as obvious urban heat island effect and frequent waterlogging. . In recent years, my country has vigorously promoted the construction of sponge cities, combining natural methods with artificial measures, under the premise of ensuring the safety of urban drainage and waterlogging, to maximize the accumulation, infiltration and purification of rainwater in urban areas, and to promote the utilization of rainwater resources and ecological environment protectio...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing permeable concrete clogging simulation device, such as the large difference between the simulation conditions and the real working conditions of the permeable pavement, to provide a large-scale permeable concrete clogging simulation device and a method for measuring retained particles, using the technical solution of the present invention , use the rainfall simulation device and the surface runoff simulation device to simulate the retention of dust particles inside the pervious concrete specimen under different intensities of precipitation and road runoff. Real working conditions; and use cylindrical small test pieces to collect particle retention data in pervious concrete, which can simulate the influence of factors such as different rainfall intensities, road runoff intensity and rainfall times on pervious concrete pore clogging, and improve the accuracy of permeable concrete clogging simulation tests Accuracy; it has the advantages of simple structure, convenient operation, accurate test data, etc.

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