Testing device and testing method used for reading and reading fluidal plastic soil osmotic coefficient

Abstract

The invention discloses a testing device and a testing method used for reading and reading a fluidal plastic soil osmotic coefficient. Each level consists of an organic glass tube, an upper cover of an osmosis cup, a lower cover of the osmosis cup, seal rings, permeable stone and filter paper by aiming at the characteristic that an osmosis instrument used in a traditional geotechnical test is unavailable since the water content in the fluidal plastic soil is large. A variable head device comprises a hose, a graduated tube and water storage bottles. The device structure is convenient in assembling and disassembling and can be subjected to single-layer multi-layer transformation. The testing method has the advantages of being simple in operation, transparent and visible in cup wall and efficient and rigorous in testing.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and more specifically relates to a test device and an experimental method for measuring and reading the permeability coefficient of flow-plastic soil, and is mainly applicable to the soil engineering test of flow-plastic soil. Background technique [0002] "Soil Engineering Standards" (GBT50123-1999) provides various test methods for determining the basic engineering properties of soil. In engineering applications, the physical and mechanical properties of soil are mainly used, including soil density, moisture content, specific gravity, and liquid plasticity. Limit; permeability coefficient, consolidation coefficient e-p curve and soil strength, the above tests all include the step of sample preparation, but according to practical experience, for general soil, the general moisture content exceeds 50%, the test is difficult to make, there is no way Proceed to the next test step. F...

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Problems solved by technology

[0002] "Soil Engineering Standards" (GBT50123-1999) provides various test methods for determining the basic engineering properties of soil. In engineering applications, the physical and mechanical properties of soil are mainly used, including soil density, moisture content, specific gravity, and liquid plasticity. Limit; permeability coefficient, consolidation coefficient e-p curve and soil strength, the above tests all include the step of sample preparation, but according to practical experience, for general soil, the general moisture content exceeds 50%, the test is difficult to make, there is no way Proceed to the next test step. For flow plastic soil, such as dredging fill soil, waste mud, beach soft soil and river and lake bottom silt, etc., the water content of flow plastic soil is very high. The original test standard has not provided a test method for this type of soil.

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