【摘 要】
：
本文叙述了应用有限元优势应力分量逼近反演分析地应力场的方法。该方法通过少数点实测应力结果,结合工程地质资料,采用有限元数值模拟分析的方法反演工程区初始应力场。利用
【机 构】
：
中国地震局地壳应力研究所,国家电力公司西北勘测设计院,
论文部分内容阅读
本文叙述了应用有限元优势应力分量逼近反演分析地应力场的方法。该方法通过少数点实测应力结果,结合工程地质资料,采用有限元数值模拟分析的方法反演工程区初始应力场。利用该方法并结合某水电站工程的实际情况进行了电站主厂房的地应力场分析,得到了在优势应力分量上与实测值相拟合的工程区剖面最大、最小主应力量值及其方向的分布图,并对工程区整体应力分布状况做了分析与探讨。
In this paper, the method of applying approximate finite element stress component inversion to geostress analysis is described. In this method, the initial stress field in engineering area is retrieved by means of finite element numerical simulation through a few measured stress results combined with engineering geological data. By using this method and combining with the actual situation of a hydropower project, the geostress field analysis of the main power plant is carried out. The maximum and minimum principal stress magnitude and direction of the section of engineering area which fit the measured value are obtained. Distribution map, and the overall stress distribution in the project area is analyzed and discussed.
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