关键词: 浅层地震法, 采空区, 震源激发, 垂叠次数, 道间距

Abstract: According to the characteristics of geological conditions in the shallow coal seam of a mine in Yulin City, the shallow two-dimensional seismic geophysical exploration technology is used to detect the goaf, and the reasonable excitation source, hammer stack number and path are selected by testing the survey area. For the construction parameters such as spacing, the 2-2 coal mining area is detected by shallow 2D seismic exploration technology in the 1.2162km2 area, and the detection results are verified in the surface construction drilling. The detection results show that: in the area where the terrain is relatively flat (the area where the heavy equipment can reach), the heavy excitation can be used, and the number of single-point sag is 14 or 16 times, and the 4m track is received; In areas with complex terrain, manual hammering excitation can be used. The number of single-point sag is 16 or 18 times, and the spacing is 2m. It is applied to the site to detect 3 anomalous areas, and 2 places are inferred as goafs. One place is inferred to be a coal seam structural change zone, and it is verified by drilling results that the shallow two-dimensional earthquake can effectively detect the shallow goaf.