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在河北省某煤田朴子村井田的勘探过程中,我们对井田的西北边界F_9断层进行了多次地震迭加方法的试验,取得了比较明显的效果。 F_9断层的特点是断距大(达400～550米),破坏带宽(测线通过时,有200～300米的空白带)。特别是下降盘(断层西侧),地表出露坚硬的石千峰组红色砂岩,激发条件很差,用普通方法几乎得不到反射波。断层在记录上的显示,仅仅是反射标志波的突然消失。这样,就无法确定断层倾角、落差及下降盘的构造形态。故采用了迭加方法。
During the exploration of Puzi Village field in a coalfield in Hebei Province, we conducted a series of experiments on the seismic superimposition of the F_9 fault in the northwestern boundary of the minefield, and achieved significant results. F_9 fault is characterized by large fault (up to 400 ~ 550 meters), the destruction of bandwidth (measured line through, there are blank 200 to 300 meters). In particular, the descent disk (west of the fault) shows a hard Shiqianfeng red sandstone on the earth’s surface with poor excitation conditions and almost no reflections by ordinary methods. The fault display on the record is only a sudden disappearance of the reflected sign wave. In this way, it is not possible to determine the fault dip, drop and the structure of the descent disk. It uses a superposition method.