深部巷道围岩稳定性影响因素的灰色关联分析

Grey Relation Analysis of Influenced Factors for Deep Surrounding Rock Stability

针对深部巷道围岩稳定性影响因素繁杂且呈现出典型灰色系统特征的问题,运用灰色关联分析法,以3类危险源理论为依据,通过分析地质特性、环境因素及人为工程等因素之间的关联度,对深部巷道围岩稳定性影响因素进行了灰色关联排序,从而确定了主要相关因素,可以有针对性地从危险源方面对其进行控制。结果表明:灰色关联分析准确度较高,能够弥补传统计算方法样本缺乏以致分析结果不够准确的问题,对于少样本问题适应性较好,且该方法获取的围岩稳定性影响因素的主次关系与实际情况吻合度较好。

According to the complicated factors that influence the stability of surrounding rock in deep roadway,which exhibits a typical grey system characteristics,and based on the three kinds of hazard theory,the method of grey relation analysis was used to sort on factors that influence the stability of surrounding rock in deep roadway through grey relation analysis on its geological characteristics,environmental factors and human engineering,etc,The main factors were determined,which can control deep surrounding rock from the aspect of hazard more pertinently. Result shows that grey relation analysis has high accuracy,which can make up for the traditional mathematical methods that less samples resulted in inaccurate results,and is well for small sample problems; the obtained relationship between primary and secondary influence factor by the method is coincide with the actual situation.