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我们完成了井间地震野外数据和理论的研究确定了坑道或空穴的位置。野外数据是在2.2米高,2.7米宽,大致正交的横断面通道上采集的,使用的是最近研制的1至5KHz P波电火花震源。用2.5D边界值解法求取对应柱状空穴附近的炸药点源的解,得到了合成记录,并用最陡下降法来估算解。对合成的波形和野外数据进行详尽的对比表明,两种数据
We completed the crosswell seismic field data and theoretical studies to determine the location of tunnels or holes. Field data was collected on 2.2 m high, 2.7 m wide, approximately orthogonal cross-section channels using the newly developed P wave spark sources from 1 to 5 KHz. The 2.5D boundary solution method was used to find the solution of the point sources in the vicinity of the columnar cavity, and the composite record was obtained. The solution was calculated by the steepest descent method. An exhaustive comparison of the synthesized waveform and the field data shows that both data