基于微动的千米深度勘探关键影响因素

齐娟娟

Critical factors in microtremor-based exploration at a depth of thousands of meters

QI Juan-Juan

表2 不同台阵大小对应频率范围统计

Table 2 Statistics of frequency range corresponding to different array sizes

道数 台阵边 长/m 频率 范围/Hz 速度/(m·s-1) 深度范围/m 1,2,3,4 10 3.71~25.00 134.68~481.93 2.97~64.93 1,5,6,7 20 2.32~16.89 137.46~512.82 4.55~110.55 1,8,9,10 40 1.00~9.47 163.27~606.06 8.64~302.73 1,11,12,13 80 0.95~7.42 203.05~769.23 13.82~403.94 1,14,15,16 160 0.88~2.49 310.08~769.23 62.26~437.61 1,17,18,19 320 0.85~2.44 341.88~930.23 72.18~544.32 1,20,21,22 640 0.78~2.05 231.21~1481.4 56.7~948.15