Abstract
The Zemuhe fault zone has large sinistral strike slip faults, which locates at the southeastern margin of the Tibetan Plateau and the eastern boundary of Sichuan-Yunnan rhombic block projections. It has the characteristics of complex terrain and strong tectonic earthquake, active and serious secondary geological disasters due to its special tectonic position, crustal deformation and faulting. The Daqing fault is located in the faulted valley basin. The Daqing Liangzi uplift area is the largest in the secondary fault of the Zemuhe fault zone. The Daqing Liangzi is the earthquake center of the magnitude 7.5 earthquake in 1850. The river valley retains the remains of glacier activities, geological disaster development. So the Daqing fault as a research object has a good typical and representative. According to the geological background condition of the disaster, the response characteristics of the slope under the action of the earthquake power and the mechanism of the slope instability, the fault disaster pattern are divided into 3 categories, 7 sub-categories and 15 types. The division of the categories is mainly based on the types of geological disasters, sub-categories to consider the disaster dynamic response process and slope instability evolution model, which is the most significant difference in the failure of the slope instability. The sub-class division is mainly based on the slope of the geological structure and stability of the form of the difference. This paper systematically reveals the genesis mechanism and the disaster model of the geological fault of Daqing fault.
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