Mass-type rock soil wetting-drying cyclic experiment apparatus and experiment method

Abstract

The invention provides a mass-type rock soil wetting-drying cyclic experiment apparatus and experiment method. The experiment apparatus comprises a shell, a control unit, a wetting-drying conversion device and a weighing unit, wherein the control unit, wetting-drying conversion device and weighing unit are arranged in the shell; the wetting-drying conversion device is provided with a humidifier and a drying unit; the humidifier, drying unit and weighing unit are respectively connected with the control unit through an analog-to-digital converter; the control unit is connected with a digital-to-analog converter; the digital-to-analog converter is connected with the humidifier, drying unit and weighing unit; the weighing unit is arranged below the wetting-drying conversion device; and the control unit is used for receiving a mass signal of the weighing unit, performing wetting-drying judgment, and sending a control signal to the wetting-drying conversion device. The experiment apparatus and experiment method provided by the invention are specially used for wetting-drying cyclic experiments in geotechnical engineering to enhance the automation degree and precision of the experiment.

Description

technical field [0001] The invention relates to a mass-type rock-soil dry-wet cycle experiment device and an experiment method, belonging to the technical field of rock-soil engineering. Background technique [0002] The existing dry-wet cycle instruments for rock and soil are all manually operated, with a low degree of automation. Because the dry-wet cycle test takes a long time, the test volume is large, the manual operation is labor-intensive, and the efficiency is low. In addition, during the dry-wet cycle test, the water quantity control during the humidification process and the quality control of the samples during the drying process are more precise. In the traditional test process, due to the lack of special instruments, multiple samples were increased repeatedly during the humidification process. The amount of wet water is difficult to be accurate and uniform; during the drying process, it is impossible to accurately judge whether the sample has reached the required...

AI Technical Summary

Problems solved by technology

[0002] The existing dry-wet cycle instruments for rock and soil are all manually operated, with a low degree of automation. Because the dry-wet cycle test takes a long time, the test volume is large, the manual operation is labor-intensive, and the efficiency is low

In addition, during the dry-wet cycle test, the water quantity control during the humidification process and the quality control of the samples during the drying process are more precise. In the traditional test process, due to the lack of special instruments, multiple samples were increased repeatedly during the humidification process. The amount of wet water is difficult to achieve accurate and uniform; during the drying process, it is impossible to accurately judge whether the sample has reached the required dryness, and the conversion between humidification and drying must be done manually

The results obtained by the traditional test device are highly discrete, and the error can only be reduced by increasing the number of test groups, which is time-consuming and laborious, and increases the cost of the test

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