CAJ | 학술논문

为了研究某矿井下中深孔生产爆破对临近巷道顶板稳定性的影响，利用Blastmate III型测震仪对该矿山日常生产爆破时，对巷道顶板进行爆破振动现场测试.结果表明，爆破振动的振幅与频率随着测点到爆源距离的增加逐渐降低；在对测试结果分析的基础上，利用动态应力比评价方法对所研究巷道的顶板稳定性进行稳定性计算分析，得到DSR≤0.125，以相同条件进行爆破生产时，所研究巷道顶板无损伤破坏.
위료연구모광정하중심공생산폭파대림근항도정판은정성적영향，이용Blastmate III형측진의대해광산일상생산폭파시，대항도정판진행폭파진동현장측시.결과표명，폭파진동적진폭여빈솔수착측점도폭원거리적증가축점강저；재대측시결과분석적기출상，이용동태응력비평개방법대소연구항도적정판은정성진행은정성계산분석，득도DSR≤0.125，이상동조건진행폭파생산시，소연구항도정판무손상파배.
Blasting vibration field tests are performed on the tunnel roof under daily production blasting by Blastmate III to investigate the effect of middle-deep hole explosion on the roofing stability. The result indicates that blasting amplitude and frequency gradually decrease with increasing distance between test point and explosion source. Dynamic stress ratio is applied to analyze the roofing stability based on analyzing the testing results. (DSR≤0.125). The results indicate that there is no roofing damage or breakdown under the same explosive conditions.