煤层覆岩裂隙带高度预测的数值模拟-安全系数法

Safety Factor Method on Numerical Simulation for Height Prediction of Cracked Zone in Overburden

通过岩石力学试验,获得模拟所需的材料物理力学参数,经过损伤参量校正建立合理的数学模型,运用FLAC进行数值仿真模拟,并对模拟结果使用安全系数的方法进行开采覆岩裂隙带高度预测,可以得到真实可靠的参考资料,而且可以大大降低生产成本。

Based on the parameters of material physical mechanics obtained from the rock mechanics experiment, the authors has established a reasonable mathematical model with the revised damage parameters and made a numerical simulation analogized with FLAC to make a height prediction of the cracked zone in overburden with safety factor method, which can provide accurate and reliable reference and highly reduce production cost.