基于Mathew与数值模拟法的采场结构参数优化及稳定性研究

 为了确定合理的采场结构参数,针对单一应用Mathew或者数值模拟法的不足,本文将这两种方法结合起来,通过工程地质调查结果确定出Mathew法中稳定性系数N,结合稳定性图表N-S之间的关系确定出形状系数S;同时,参考类似矿山的采场结构参数,提出几种具有相同形状系数的采场结构参数方案,并对每种方案进行数值模拟。通过对各方案中应力、位移、塑形破坏区体积的分析,确定出合理的采场结构参数。结合具体工程实例,对现场实验结果进行分析表明,将两种方法结合所确定出的采场结构参数对矿山生产实践具有一定的指导意义。

Optimization of Structural Parameters and Stability of Stope Based on Mathew Method and Numerical Simulation Method

The Mathew method and numerical simulation method were combined to determine the reasonable structural parameters of the stope in consideration of the deficiencies of the single application of Mathew method or numerical simulation method. The shape factor S could be determined through the identification of stability coefficient N combing the relationship between N and S in the stability chart. Furthermore, several programs of stope with the same shape factor S were put forward. The determination of reasonable stope structure parameters were made through the analysis of stress, displacement and shape of failure zone volume in different programs with numerical simulation of different program. This technology is proved to be of great instructive significance to mines in terms of the determination of reasonable stope structural parameters by the specific applications and analysis of site industrial test results.