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随着岩石力学的发展,人们把围岩看作地下结构的一个组成部分,希望采用正确的设计施工方法,最大限度地发挥围岩的自承能力。因此对了解洞室开挖后,围岩内应力的分布情况已成为设计部门迫切关心的问题。由于电子计算机的应用和发展,在地下工程围岩应力分析中,有限元法已成为一个重要的手段,但要使它在设计中发挥作用,还有许多实际问题需要进行深入研究。本文仅就笔者在二滩电站地下厂房平面有限元分析中遇到的一些问题,谈点粗浅体会。
With the development of rock mechanics, people think of the surrounding rock as an integral part of the underground structure, hoping to use the correct design and construction methods to maximize the self-bearing capacity of the surrounding rock. Therefore, understanding of the cavern excavation, the stress distribution in the surrounding rock has become an urgent concern for the design department. Due to the application and development of electronic computers, the finite element method has become an important method in the analysis of surrounding rock stress in underground engineering. However, there are many practical problems to be studied in order to make it work in the design. This article only on the author in the Ertan Hydropower Station planar finite element analysis of some of the problems encountered in the talk of the superficial experience.