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利用精密水准监测数据,并结合工程地质勘查成果,构建了清徐地区浅部地裂缝与深部断层“双位错”模型,以此反演获取了地裂缝及断层现今的构造活动参数,确定了地裂缝与断层呈同倾向“Y”字形活动关系。结果表明,清徐地裂缝现今张裂活动速率大于倾滑活动速率,其量值达到了15.1mm.a-1;地裂缝活动下边界深度约在380 m左右;浅部地裂缝的倾滑速率大于深部断层的倾滑速率,断层倾滑速率仅为-1.6mm.a-1。反演结果与水文、地球物理勘测结果相一致。
Based on the monitoring data of precision leveling combined with the results of engineering geological prospecting, the shallow fissures and deep faults “double dislocation” model in Qingxu area were constructed, and the current tectonic activity parameters of fissures and faults were obtained by inversion. It is confirmed that the ground fissures and faults show the same tendency of “Y” zigzag activity relationship. The results show that the current cracking rate of the Qingxu fissure is larger than the rate of the dip-slip activity, which reaches 15.1mm.a-1. The depth of the boundary under the ground fissure movement is about 380 m. The slip rate of the shallow ground fissure It is larger than the dip slip rate of the deep fault and the fault slip rate is only -1.6mm.a-1. The inversion results are consistent with hydrological and geophysical survey results.