【摘要】 为了在煤矿巷道掘进阶段对掘进工作面前方地质异常体进行连续探测和实时预报,在对煤矿巷道掘进机的震动信号进行分析和研究,找到使其能够替代炸药震源的数据处理方法的基础上,提出了用煤矿巷道掘进机作为震源进行随采地震反射波超前勘探的构想,并在某矿进行了试验,研究了此法对已知巷道系统和由地质揭露推测的断层探测效果。结果表明:以掘进机为震源的随采地震探测技术,能够清晰分辨出来自巷道侧帮的反射波,对巷道距离的探测误差小于2%;对来自断层的反射波也有反映,对断层距离的最大探测误差小于20%,展示了随采地震技术实现采掘与探测同步、探测保障采掘的技术潜力。更多还原

【Abstract】 To detect and forecast the geological anomaly ahead of the tunnel face continuously and real-timely in coalmine heading stage,the SWM( seismic while mining) advance detection technique which takes the coal mine heading machine for a seismic source was put forward based on the analysis and study of the characteristic of coalmine heading machine signal and how to take it as a substitute for explosive source. An experiment was carried out in a coalmine with known roadway system and a fault inferred by roadway outcrops. The result showed that using coalmine heading machine as a seismic source,the reflected wave from roadway could be reliably distinguished,and the distance error was less than 2%. The reflected wave from a speculated fault also could be seen,and the biggest distance error was less than20%. This result shows that SWM technology has great potential to realize the technical idea of survey while mining and survey ensures mining.更多还原