【摘要】 对大灰厂断层形变测点的36年基线、水准观测资料进行了系统研究,将观测值的变化转换为断层的水平和垂直活动量,并从断层活动方式与所受压应力方向的关系研究了华北地区邢台-唐山地震时段和大同—张北地震时段,以及在八宝山断裂(大灰厂段)上显示的地震前后断层异常活动特征及相应的应力状态。认为对跨断层形变测量资料的分析研究不仅要通过一定的数学处理和统计学分析,更应当从断层活动方式及应力状态进行地质解译,以探索孕震过程中的断层活动信息。更多还原

【Abstract】 The baseline and level data for 36 years at Dahuichang observation site are systematically studied in this paper. These observation data are resolved into horizontal and vertical components of fault slip. Based on the relation between fault slip and the direction of compressional stress in North China, we reveal the stress regimes and faulting characteristics among Babaoshan Fault Zone (Dahuichang segment) during the periods of Xingtai, Tangshan and Zhangbei-Datong earthquakes. We conclude that study on the deformation data should be carried out not only by mathematic processing and statistics analysis, but also by geological interpretation based on faulting pattern and stress regimes, in order to understand how fault slips during the development of earthquakes.更多还原