长江三峡工程构造应力场数值模拟

Digital modelling of structural stress field of the Three Gorges project

本文分别进行了长江三峡工程区域1/100万现今构造应力场有限元数值模拟和长江三峡工程库首区1/50万燕山期、新构造期和现今构造应力场演化规律模拟和分析。区域模拟结果表明:坝区不存在发生大于5级地震的构造应力场背景,库首区模拟结果表明:坝区不存在发生大于3级地震的构造应力场背景。

This paper presents respectively the finite element digital modelling of the present structural stress field at scale 1:1000000 in the region of the Three Gorges Project yangtze River, and the modelling and analysis of the evoiution of structural stress field from Yanshanian Period through Neotatonic Period till present at scale 1:500000 in the front area of reservoir. Regional and front mondellings show that there doesn't exist structural.