Impact Resistance Testing Device and Method for Three-Dimensional Tunnel Decompression-Support Model

Abstract

This invention provides a three-dimensional roadway stress relief-support model impact resistance testing device and method, comprising the following steps: constructing a three-dimensional roadway model based on the geological and mechanical parameters of an actual rockburst mine and a preset similarity ratio; constructing a stress relief model and a support model based on the stress relief structure and support structure of the actual rockburst mine and a preset similarity ratio to form a three-dimensional roadway stress relief-support model; setting a monitoring device on the three-dimensional roadway stress relief-support model; calculating the static load and impact load of the three-dimensional roadway stress relief-support model based on the ground stress, impact energy, and preset similarity ratio of the actual rockburst mine; placing the three-dimensional roadway stress relief-support model on the testing device and applying static and impact loads to the three-dimensional roadway stress relief-support model, while the monitoring device monitors the mechanical parameters of the three-dimensional roadway stress relief-support model in real time, thereby obtaining a quantitative relationship between stress relief and support in the three-dimensional roadway stress relief-support model.

Images