Porous rock-soil body thermophysical parameter testing system based on dehumidification technique

Abstract

The invention discloses a porous rock-soil body thermophysical parameter testing system based on dehumidification technique. A rock-soil body sample is sealed in a sample chamber, a water content tester and a heat parameter tester are horizontally inserted into the rock-soil body sample and point to the axle center of the rock-soil body sample, the water content of the rock-soil body sample is tested by the water content tester, thermophysical parameters of the rock-soil body sample is tested by the heat parameter tester, a dehumidification device is communicated with the upper end of the sample chamber and leads dry gas into the sample chamber and applies pressure to the sample chamber, moisture in the rock-soil body sample is gradually discharged under pressure and dry actions, the content tester and the thermophysical parameters of the rock-soil body sample gradually change, and the water content tester and the heat parameter tester continually test the water content and the thermophysical parameters of the rock-soil body sample, so that a relationship between the water content and the thermophysical parameters of the rock-soil body sample is acquired. According to the system, thermophysical parameters of porous rock-soil bodies are dynamically measured under the condition of different water contents.

Description

Technical field [0001] The invention relates to a dehumidification technology for porous rock and soil, in particular to a porous rock and soil thermal property parameter testing system based on the dehumidification technology. Background technique [0002] Nowadays, the dehumidification technology of porous rock and soil has been more and more widely used, especially in the related scientific research field of rock and soil, providing a good basic guarantee for various tests. Accurate and reliable dehumidification technology can ensure the accuracy of the final results and make the test process convenient. Studies have shown that the continuous change of water content of porous rock and soil will directly affect certain mechanical and physical properties of rock and soil, and has become an important factor that cannot be ignored in the study of rock and soil properties. For example, the water content of rock and soil is constantly changing. When the ground becomes smaller, its ...

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Problems solved by technology

[0004] In addition, the determination of water content and thermal physical parameters is mainly based on static measurement, and it is impossible to dynamically measure thermal physical parameters under different water content conditions.

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