冲击地压综合指数法中采空区宽度评价指数修正  

Evaluation Index Modification of Gob Width in Comprehensive Index Method about Rock Burst

作　　者：曲孔典 马文强[1] 刘钒[1,2] 王同旭[1] 何勇[1,3] 张洋[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东省煤炭工业局,济南250031 [3]山东东华能源有限责任公司葛亭煤矿,山东济宁272053

出　　处：《煤炭技术》2016年第5期93-95,共3页Coal Technology

摘　　要：现有冲击地压危险性评价综合指数法中没有考虑采空区宽度这一影响因素。针对这一问题,以葛亭煤矿3305工作面的地质及开采情况为工程背景,运用FLAC数值模拟软件,模拟分析了一侧采空及两侧采空条件下,采空区宽度对工作面支承压力分布及集中系数的影响,结合综合指数法中关于工作面周围采动状况的结论,分析得出考虑采空区宽度的评价指数参数修正方法。The impact factor of mined-out width has not been considered in current comprehensive index method about evaluating rock burst.Aiming at this problem,takes the geological and mining conditions of 8305 working face in Geting coal mine as engineering background, FLAC was used to analyze the intluence of the gob width on abutment pressure distribution and the concentration factor of the working face under the condition of mining one and bilateral coal seam. Combining with the result of mining condition ar-und the working face in comprehensive index method,the modifying method of evaluation indexes parameters was obtained through simulation analysis.

关 键 词：冲击地压 综合指数法 采空区宽度 指数参数修正 

分 类 号：TD324[矿业工程—矿井建设]