基于震动波CT技术的冲击危险预测研究  

Prediction of rock burst risk based on seismic computed tomography detection

作　　者：金双林[1] 马志强[2,3] 李静[2,3] 何江[2,3] 

机构地区：[1]徐州矿务集团有限公司三河尖煤矿,江苏徐州221613 [2]中国矿业大学矿业工程学院,江苏徐州221116 [3]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221116

出　　处：《煤炭工程》2016年第10期67-69,共3页Coal Engineering

基　　金：国家自然科学基金资助项目(51404243;51404269);中央高校基本科研业务费专项资金资助项目(2014XT01)

摘　　要：以三河尖煤矿南二采区9煤辅运上山掘进巷道为例,掘进前采用震动波CT技术反演分析了区域波速分布,得出了高应力及高应力梯度对应的冲击危险区域,通过掘进期间矿压显现验证了预测的准确性。采取针对性卸压治理措施后,进一步采用震动波CT反演技术对卸压区域波速分布进行了反演,结果表明,经卸压治理,该区域波速降低,高应力及高应力梯度区得到消除,区域冲击危险得到有效控制,保证了该巷道的安全掘进。Taking rock burst prediction during the driving of No. 9 coal seam auxiliary transport rise in south No. 2 mining block of Sanheijian Mine as example,the high stress and high stress gradient area corresponding to the impact of the risk was obtained by seismic computed tomography technology to analyze of wave velocity distribution before driving. Driving process verified the accuracy of prediction and specific risk relief measures was adopted to ensure the safety of the roadway driving. Seismic computed tomography technology was used to inverse velocity distribution in relief region again after driving. The results show that, wave velocity in the region is reduced, the high stress and high stress gradient are eliminated in the area,which means effective control of rock burst risk and insurance of driving safety.

关 键 词：震动波 冲击矿压 波速 高应力 CT反演技术 

分 类 号：TD324[矿业工程—矿井建设]