Dry-wet cycle testing device capable of monitoring moisture content of soil in real time

Abstract

A dry-wet cycle testing device capable of monitoring moisture content of soil in real time comprises a drying tank, a saturation tank, a power supply tank, a rotating device and a reading control device, wherein the drying tank promotes drying of soil samples by means of fans and a blower; the saturation tank performs humidification saturation on the soil samples by means of a humidifier; the power supply tank is located at the bottom of the device; the rotating device is divided into a self-rotating device and an around-circular-ring-track rotating device; the reading control device monitors the moisture content of the soil samples in real time. The dry-wet cycle testing device has the advantages that dry-wet cycle can be performed on the multiple soil samples with different water content ranges simultaneously, saturation and drying are more uniform by means of the special rotating device in the dry-wet cycle process, the moisture content of the soil samples can be monitored at any time, indication lamps can be lightened when preset moisture content is reached, and the dry-wet cycle on the soil samples is performed precisely.

Description

technical field [0001] The invention relates to the field of experimental equipment in geotechnical engineering, in particular to a dry-wet cycle test device which can monitor the water content of soil in real time. Background technique [0002] In the field of geotechnical engineering, the soil undergoes long-term drying-saturation alternating cycles due to rainfall in the natural state. Under the action of multiple dry-wet cycles, the soil not only undergoes macroscopic deformation, but also its particle arrangement, pore The characteristics and structural unit characteristics all change, which leads to the change of engineering properties, which leads to the occurrence of different degrees of engineering geological disasters, such as slope instability, roadbed damage, etc. Various physical and mechanical properties after cycling are particularly important, the most important of which is the dry-wet cycle test of the soil. [0003] The soil dry-wet cycle test is divided i...

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Problems solved by technology

[0003] The soil dry-wet cycle test is divided into two parts: soil sample saturation and soil sample drying. Most of the test devices for soil sample saturation use water saturation. For example, CN10297453A can complete the saturation of the soil, but the saturation is not uniform enough, and the water content of the soil sample cannot be accurately controlled. rate, only one set of tests can be completed at a time, and soil samples are dried such as CN204613203U. Although it is considered that the soil samples can be turned over to ensure that the soil samples are more evenly dried and saturated, and the tester can handle multiple soil samples at a time, it cannot Accurately monitor the water content of soil samples at any time

[0004] Most of the traditional dry-wet cycle test devices can only do one set of dry-wet cycle samples at a time, and cannot achieve uniform dry-wet cycle. Although a few dry-wet cycle devices can be turned over to ensure uniform dry-wet cycle However, it cannot guarantee accurate real-time monitoring of the moisture content of soil samples.

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