【摘要】 文中首先介绍了中国台湾省地质构造的大概情况。在此基础上提出了数学模拟的模式。选择北纬21°30′—25°30′,东经119°30′—122°30′范围作为模拟地区。整个模拟区假设分为三种不同介质构造。采用有限单元法,模拟在压应力作用下的层理分布和应力集中区。由于计算机内存所限,整个模拟过程化为二维平面应变模式。主要做了三方面工作:(1)最大主压应力方向与层理分布和应力集中区的关系;(2)差应力大小与层理分布和应力集中区的关系;(3)约束条件与层理分布和应力集中区的关系。本文主要结果是:(1)计算机数学模拟的层理分布与中国台湾省1978年出版的《台湾地体构造图》上绘制的层理分布十分吻合;(2)计算机数学模拟的应力集中区与台湾省强地震分布区基本一致。更多还原

【Abstract】 In this paper,the general survey of geological structure of Taiwan Province is firstly given, then a physical model is proposed. The area of 21°30’-25°30’. N, 119°30’-122°30’ E is selected as simulated area. There are three different geological structures in this area. Using the planestrain finite element method, the trend of foliation and high stress area are simulated under compression. We have researched three questions: (1) The relation between the direction of principal stress and the trend of foliation and high stress area; (2) The effect of the different stresses on the trend of foliation and high stress area;(3)The influence of bound condition on the trend of foliation and high stress area.The principal results are as follows:(1) The simulated trend of foliation coincides with actual condition.(2) The simulated high stress area coincides with distribution of strong earthquakes.更多还原