Soil body horizontal osmotic coefficient measuring apparatus

Abstract

The invention discloses a soil body horizontal osmotic coefficient measuring apparatus which mainly comprises a stabilizing water supply system and an osmosis system, wherein the osmosis system mainly comprises a vertically arranged soil body sample chamber, an osmotic water distributing pipe arranged in the center of the sample chamber vertically and a water collector arranged outside the sample chamber and used for receiving osmotic water, wherein the sample chamber consists of a cylinder body, an upper close cover and a lower close cover, the wall surface of the cylinder body is uniformly distributed with osmotic water drain holes, the upper close cover and the lower close cover are airtightly connected with the cylinder body, the pipe wall of the water distributing pipe is uniformly provided with osmosis holes, the upper end of the water distributing pipe is closed and a pipe opening at the lower end of the water distributing pipe is communicated with the stabilizing water supply system after passing through the lower close cover of the sample chamber. The measuring apparatus can be adapted to different soil bodies, can measure soil body horizontal osmotic coefficients under the real state, can be used for measuring the sample horizontal impervious sloping and adapt to the requirement on the high head of the present high earth and rockfill dam, and meets the research demand on real engineering design and soil body osmosis characteristic.

Description

technical field [0001] The invention relates to soil permeability coefficient measurement technology, more specifically, relates to a measuring instrument for measuring soil horizontal permeability coefficient, and belongs to the field of geotechnical engineering test research. Background technique [0002] In geotechnical engineering, permeability is a basic characteristic of soil, generally expressed by permeability coefficient. The permeability coefficient must be measured by a special permeability instrument. The current penetrometers for measuring the permeability of soil are all vertical penetrometers, which can only measure the permeability of the soil perpendicular to the soil layer interface, that is, the vertical permeability coefficient of the soil. However, in practical engineering, water seepage is mainly along the horizontal direction of the soil, and the horizontal permeability of the soil is often more important than the vertical permeability. Therefore, th...

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Problems solved by technology

"Geosynthetics Horizontal Permeability Instrument" discloses a measuring instrument for measuring the horizontal permeability coefficient of geosynthetics (Chen Zhiming, Wang Shiming. Geosynthetics Horizontal Permeability Instrument. China: CN 200947078Y.2007.9.12.) But the level Permeameter is not suitable for the determination of soil horizontal permeability coefficient

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