阿尔金断裂带的数学模拟

本文采用平面有限元数值模拟方法,对阿尔金断裂带及邻区的构造应力场和剪应力集中的能力与阿尔金断裂破裂性质之间的关系进行了探讨。通过与实际资料对比,获得了本区应力场计算模型。通过计算得出本断裂带各部段切应力值不均一,整个断裂带活动不频繁,未来地震的危险区位于西部段。

NUMERICAL SIMULATION OF THE FRACTURE ZONE IN AERJIN

This paper deals with the tectonic stress fields in the neighbour area of the fracture zone in Aerjin, and its relation of the ability of stress focus in the area and the fracture character in it by using the method of finite element analysis and numerical simulation. A stress field model of the area compared with the observed data is obtained. It is calculated out that the shearing stress values in each segment of the fracture zone are unequal. There is not frequently activity on the whole fracture zone. The earthquake damage zone will be in the western segment of the region.