基于WGKMW-SVM的冲击倾向性评价模型

Burst Liability Evaluation Model Based on WGKMW-SVM

对煤的冲击倾向性进行评价是冲击地压灾害防治的前提。现有的冲击倾向性评价方法存在一定的不足之处,针对这一问题,收集了以动态破坏时间DT、弹性能量指数W_(ET)、冲击能量指数K_(E)和单轴抗压强度R_(C)为评价指标的数据库,建立冲击倾向性评价的WGKMW-SVM模型,评价准确率达92.6%。将WGKMW-SVM模型应用于万峰煤矿,评价结果与工作面煤层一致,得到一种高效准确、具有应用前景的冲击倾向性评价方法。

The evaluation of coal bursting liability is the premise of rock burst disaster prevention.There are some shortcomings in the existing evaluation methods of bursting liability.To solve this problem,a WGKMW-SVM model for bursting liability evaluation was established by collecting databases with dynamic failure time DT,elastic energy index WET,bursting energy index KE and uniaxial compressive strength RC as evaluation indexes.The evaluation accuracy rate reached 92.6%.The WGKMW-SVM model is applied to Wanfeng coal mine,and the evaluation result is consistent with that of coal seam in working face.An efficient and accurate evaluation method of bursting liability with application prospect is obtained.