当前在我国煤田勘探中采用的地震方法,多数仍然是从石油物探中延续下来的中频地震法。由于它的分辨能力不高,要完成查明小断层(断距在30米以下)、了解浅层(埋深200米以内)和详细掌握构造等地质任务是困难的,甚至是不可能的(如埋深200米以内的浅部,断裂频繁出现的复杂地区)。为了进一步发挥地震方法在详精查勘探中的作用,我 The seismic methods currently used in coalfield exploration in China are still mostly intermediate frequency seismic methods that have been extended from petroleum geophysics. Because of its poor resolution, it is difficult or even impossible to find a small fault (fault below 30 m), to understand the shallow (within 200 m) and to have a detailed grasp of geological tasks such as tectonics Such as shallow depths within 200 meters, complicated areas where fractures frequently occur). In order to further exert the role of seismic methods in detailed exploration, I