Apparatus and method for soil arch test

Abstract

The invention discloses an apparatus for a soil arch test under multiple test conditions. The apparatus comprises a test model case, a displacement plate control device and a movable base plate angle control device. The displacement plate control device adjusts a displacement plate drive screw to control the unloading level of soil. The movable base plate angle control device adjusts a movable base plate drive screw to control the positions of a pi-shaped plate and an L- shaped plate and can adjust the inclination angle of a movable base plate so as to change the initial stress state of a soil sample (wherein the direction of initial principal stress of the soil sample differs as the angle of the base plate changes.) The apparatus provided by the invention is convenient to dismount and assemble and can use displacement plates with different widths to realize soil arch tests with different unloading scales. The apparatus has a simple structure and good operation repeatability, can be used for research on soil arching internal stress and displacement distribution under a plurality of test conditions and provides accurate analysis data for theoretical and practical engineering research.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for continuous changes in slope angles during testing without requiring multiple tools or adjustments at once. It enables both horizontal and vertically applied loadings on the tested material while maintaining its original shape. Additionally, this design makes it easy to assemble into an instrument that works properly even if there may have any issues related to previous designs such as poor durability over time due to environmental factors like water damage caused by rainwater. Overall, these technical improvements make the apparatus easier to use and improve efficiency compared to current methods.

Problems solved by technology

This patented describes an improved testing machine with features like adjustability of support structures and ability to create different types of stress patterns under varying loading levels. These improvements help researchers better understanding how soil arches occur over time without having to perform multiple experiments involving changing variables.

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