Multifunctional linkage device integrating sewage time-sharing sampling and permeation coefficient testing and working method of multifunctional linkage device

Abstract

The invention relates to the technical field of civil engineering materials testing, in particular to a multifunctional linkage device integrating sewage time-sharing sampling and permeation coefficient testing and a working method of the multifunctional linkage device. The device mainly comprises two parts, wherein a first part is a device A and mainly comprises a power supply channel, a cylindrical overflow port, a water cylinder, an overflow water tank, a water tank overflow port, a test sample bracket, a test sample, a dial gauge, a sewage sampling pipe, a high-precision flow gauge, an electronic thermometer, a working table I and the like; a second part is a device B and mainly comprises a working water bucket, a water draining bucket, a propeller, a water pump, a power switch, a water pump electronic control assembly, a propeller electronic control assembly, a guide rod rotation driver, a working table II and the like; the device A and the device B are connected through one water supply guide pipe and two water draining guide pipes, and accordingly, the multifunctional linkage device is formed. Therefore, the condition of sewage permeation of a porous pavement in a real environment can be simulated, samples of sewage filtered by the test sample are obtained at different moments, the permeation coefficient of the test sample is tested simultaneously, the water resource is recycled, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of civil engineering material testing, in particular to a time-divided sampling and permeability coefficient joint testing technology of permeable cement concrete sewage. Background technique [0002] At present, there is no national standard in the field of permeable cement concrete pavement, and generally refer to the industry standards compiled in recent years and the local standards of Beijing. The water permeability coefficient is an important index to measure the water permeability of pervious concrete. The industry standard and the local standard respectively give two different test methods. "Technical Regulations for Permeable Cement Concrete Pavement" (CJJ / T 135-2009) is an industry standard in this field. In Appendix A, the test device, operation steps and calculation formula for measuring the water permeability coefficient by the constant water head method are given. This method It is suitable fo...

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Problems solved by technology

In the stage of laboratory research, we tested the water permeability of the test block with reference to industry standards, but found many problems, such as directly using tap water to supply water, the water pressure is not easy to stabilize, which affects the accuracy of the data; using a steel ruler to measure the water level difference , due to the fluctuation of the water level, it is not easy to measure accurately; after the measurement is completed, the water flowing out of the overflow port of the cylinder and the overflow port of the sink is poured out directly. If the test block has large pores or a large number, a lot of water resources will be wasted, etc.

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