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探测深圳市地下断层参数对该地区的规划建设、抗震设防和可持续发展具有重要意义。利用人机联作选择法反演了深圳市两条测线的断层参数,反演结果表明:两条测线的正演模型与观测值之间相对误差分别为4.51%和4.26%,计算结果可靠;断层从地下4km附近开始出现破裂信号,至17km附近消失,倾角约为70°,属于倾角较大的正断层;断层位置与深圳市地形起伏可能存在一定相关性。研究结果与地质及地球物理勘探结果具有较好的一致性,验证了剖面重力测量数据反演深圳市地下断层参数的可行性和有效性。
The exploration of underground fault parameters in Shenzhen is of great significance to the planning and construction, seismic fortification and sustainable development of the area. The fault parameters of two lines in Shenzhen City were inverted by the man-machine cooperative selection method. The inversion results show that the relative errors between the forward model and the observed values of the two lines are respectively 4.51% and 4.26% Reliable; the fault from the underground 4km near the beginning of the rupture signal disappears to 17km near the dip angle of about 70 °, belonging to a larger dip of the normal fault; fault location and the Shenzhen relief may have some relevance. The results are in good agreement with the results of geophysical and geophysical exploration. The feasibility and validity of the cross-sectional gravity data inversion of Shenzhen underground fault parameters are verified.