Identification and Dynamic Stability Analysis of Engineering Rock Mass Equivalent Model

Abstract

In allusion to the uncertainty of engineering rock mass numerical calculation and stability evaluation, the equivalent rock mass parameter identification and stability analysis method have been studied according to onsite displacement monitoring. The basic ideas and the process of stability dynamic prediction numerical analysis method for engineering rock mass were introduced. This method is mainly used for orthogonal numerical analysis, using the least square method in regression analysis to establish the functional relation between engineering rock mass calculated displacement and rock mass parameters. Then, the minimum sum of the squares of the differences between measured displacement and the calculated displacement as the optimization goal according to the onsite monitoring information was used to determine the equivalent rock mass parameters of the corresponding monitoring displacement and slope situation. The proposed equivalent model identification and dynamic stability analysis method can be more reliable to predict rock mass deformation and its stability, playing an important role in guiding the actual production.