System for improving original-state soil sample and testing permeability

Abstract

The invention relates to a system for improving an original-state soil sample and testing permeability. The system mainly used for comprehensively improving the field original-state soil sample and testing the permeability of the soil sample comprises a soil sample improving and permeability testing device, improving solution circulating equipment and the power equipment of the improving solutioncirculating equipment and is characterized in that the size of the designed soil sample improving and permeability testing device is generally matched with the size of a soil sample commonly used in alab, and the soil sample improving and permeability testing device is used as a container during soil sample improving, is also capable of measuring the permeability parameters of the soil sample, and comprises an annular cutter, a sleeve, sealing rings, permeable stones, a water inlet pipe, a draining pipe, an upper cover and a lower cover; soil property parameter change depends on the circulating flowing of an improving solution, and the improving solution circulating equipment comprises a water head tank and a water inlet tank; the power equipment comprises a pressure-variable normal-pressure air compressor and a vacuum pump and is mainly used for providing power for the stable circulating flowing of the solution. Compared with the prior art, the system is high in work efficiency, convenient to operate, reliable in effect, easy to master, capable of disassembled and assembled, and the like.

Description

technical field [0001] The invention belongs to the fields of geological engineering and geotechnical engineering, and in particular relates to a soil sample improvement and permeability testing system. Background technique [0002] The strength, deformation, stability and permeability of the soil itself are the key issues to solve the construction safety of various geotechnical engineering such as tunnels and foundation pits, and the indoor geotechnical test work runs through the various stages before, during and after the implementation stage is the necessary work to determine the physical and mechanical parameters of engineering rock and soil mass. [0003] At present, the evaluation indexes of soil in geotechnical tests mainly focus on the determination of its strength and deformation in the original state. The focus of the research, the so-called soil improvement technology, is a technology to deal with the soil. It increases or decreases the specific components in the...

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Problems solved by technology

[0005] The present invention aims at the present situation that a series of complex test conditions exist in obtaining improved soil samples based on the original structure and consumes a lot of manpower and material resources, overcomes the deficiencies of the prior art, and provides a multi-function, convenient operation and high-efficiency A reliable soil sample improvement and permeability test system, which can carry out various forms of soil improvement tests on the basis of maintaining the original structure of the soil and measure the size and change of its permeability parameters.

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