Water bath type temperature control variable water head percolation instrument and method for testing permeability by using water bath type temperature control variable water head percolation instrument

Abstract

The invention relates to the technical field of geotechnical test equipment, in particular to a variable head permeameter. The technical problem to be solved by the invention is to provide the water bath type temperature control variable water head seepage instrument capable of testing the permeability of soil at different temperatures. The invention also provides a method for testing the soil permeability by using the water bath type temperature control variable water head seepage instrument. A water bath type temperature control variable water head seepage instrument comprises a variable water head seepage instrument body, a sample cylinder located in a water bath cavity, a variable water head pipe, a heating sleeve, a water storage cylinder, a water storage cylinder temperature sensor, a pressure sensor, a connecting pipe, a heating rod, a sample temperature sensor, a water bath temperature sensor, a water outlet pipe and a controller. The method for detecting the permeability coefficient by using the water bath type temperature control variable water head seepage instrument comprises the following steps: A, filling the sample cylinder with a sample; b, saturating the sample; c, keeping constant temperature; and D, testing.

Description

technical field [0001] The invention relates to the technical field of geotechnical test equipment, in particular to a variable water head osmometer. Background technique [0002] At present, there have been many studies on the influence of different pH values ​​and confining pressure on soil permeability, but there are few studies on the influence of temperature on pollutant migration and permeability. In actual engineering, the variable temperature is usually ignored, but according to the current research status, the influence of temperature will change the liquid plastic limit and bound water content of the soil, and will have a greater impact on the permeability of the soil. There is currently no equipment for testing the permeability of soil at different temperatures. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water bath type temperature-controlled variable-head seepage meter capable of testing the p...

AI Technical Summary

Problems solved by technology

[0002] At present, there have been many studies on the influence of different pH values ​​and confining pressure on soil permeability, but there are few studies on the influence of temperature on pollutant migration and permeability.

In actual engineering, the variable of temperature is usually ignored, but according to the current research status, the influence of temperature will change the liquid plastic limit and bound water content of the soil, and will have a great impact on the permeability of the soil

Currently there is no equipment for testing the permeability of soil at different temperatures

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