西南某电站厂房洞室方案比选的有限元分析

Comparison for Two Underground Workshop Schemes of a Hydropower Station in the Southwest of China by FEM

西南某电站地下厂房有两种不同的设计方案,两个方案的洞室所处工程地质环境不同,各有利弊。通过有限元计算,比较分析两方案在开挖后的应力集中及变形情况,计算结果表明方案一地下厂房无论是开挖后的应力集中还是变形均大于方案二,因此,方案二优于方案一,为方案的最终选择提供了依据。

The two underground workshop schemes of a hydroelectric station in the southwest of China were designed in different geological environment. By the Finite Element Method, this paper compared the stress concentration and the deformation of two schemes when excavated. The result shows that the scheme one has higher rate of the stress concentration and the deformation over the scheme two, therefore we finally choose scheme two.