六十年代初,西德克雷(Th·krey)教授提出了地震槽波法,西德、英、法等许多国家相继进行了大量的试验研究工作,在探测煤矿井下的小断层、煤层冲蚀、煤厚变化、陷落柱等方面都取得了一定的地质效果,并认为槽波法是一种有发展前途的方法。 1978年以来,我们进行了井下试验。从初 In the early 1960s, Prof. Threy Krey proposed the seismic wave tank method. Many countries, such as West Germany, Britain and France, carried out a large number of experimental studies in succession. After detecting the faults of small coal seams and coal seam Erosion, variation of coal thickness, collapse column and so on have made some geological effects, and believe that the groove wave method is a promising method. Since 1978, we conducted a downhole test. From the beginning