爆破振动影响下软岩巷道变形破坏特征研究  

Study on distortion and failure characteristics of soft rock roadway influenced by the blasting vibration

作　　者：程水金 明建[1,2] 金爱兵[1,2] 邓宝超 CHENG Shuijin;MING Jian;JIN Aibing;DENG Baochao(State Key Laboratory of High-Efficient Mining and Safety of Metal Mines,Ministry of Education,University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《有色金属（矿山部分）》2021年第4期59-66,共8页NONFERROUS METALS(Mining Section）

摘　　要：针对爆破振动对软岩巷道的稳定性产生影响的问题,对爆破振动条件下巷道变形破坏规律进行了研究。以矿山岩石力学理论为指导,对巷道稳定性受爆破振动影响的力学机理进行了理论分析。采用现场试验和三维数值模拟实验方法进行了实验研究,获得了爆破振动条件下软岩巷道的稳定性特征。研究结果表明当受到爆破振动影响时,巷道围岩内的塑形区将显著增大,从而加剧了巷道的变形破坏。In view of the influence of the blasting vibration on the stability of the swelling soft rock roadway,the study on the law of deformation and failure of roadway under blasting vibration conditions was carried out.With the guidance of theories of mine rock mechanics,the mechanics mechanism of the influence of the blasting vibration on the stability of the soft rock roadway was analyzed.By means of the field experiment and the numerical simulation experiment,the stability characteristics of soft rock roadway under blasting vibration were obtained.Experimental results showed that the plastic area of the surrounding rock around roadway will increase significantly under blasting vibration,which will aggravate the deformation and failure of the roadway.

关 键 词：软岩巷道 爆破振动 巷道变形机理 数值模拟 

分 类 号：TD235[矿业工程—矿井建设] TD803