【摘要】 影响煤矿层安全高效开采的最主要的地质因素是断层构造及其异常,特别是落差在3~5m的中小断层构造对生产影响最大.为了保证开采工作的顺利进行,通常需在工作面回采前对面内地质条件进行探测与评价.利用地震波CT多波联合探测反演与解释,可精确确定工作面内的地质构造及异常范围.其弯曲射线追踪SIRT法反演可获得收敛性好的探测区域波速结果,以纵波波速结果为主,高速区代表断层构造迹线,低速区代表煤层增厚,同时结合其它参量成图,可有效识别各种地质构造及其特征.3241工作面的探测与回采实例有效地说明了,多波联合探测技术可为面内生产解决大量的实际地质问题.更多还原

【Abstract】 The fault structure and abnormity are the key geological factors for impacting safety mining,and especially the middle and small fault of 3 to 5 meter fall has most infection for mining production.To keep safety mining,the exploration and valuing for geological condition in workface is often being done before mining.The geological structure and abnormity scope in workface can be confirmed precisely by seismic wave CT multi-wave detecting and explaining.The bending line tracing and SIRT method inversion for seismic wave CT can gain the good constringency velocity results.Looking the velocity result of P-wave as the main,the high velocity reflects the trace of fault,and the low velocity scope reflects coal thicker.At the same time,combining the other’s parameters sections,all kinds of geological structure can be distinguished efficiently.The practical example of detecting and mining in 3241 workface expresses that the technique of the seismic wave CT multi-wave detecting can resolve many practical geological problems in workface for mining.更多还原