黄河茨哈峡水电站地下洞室群支护设计与模拟研究
潘挺 1张峰华1
作者信息
- 1. 青海黄河上游水电开发有限责任公司工程建设分公司 青海西宁 810001
- 折叠
摘要
茨哈峡水电站地下厂房埋深大，位于断层和层间错动带密集发育的地段，且受岩层层厚影响，围岩类型复杂，确定合理的地下洞室群支护方案，对保证水电站正常运行意义重大。本文对黄河茨哈峡水电站地下洞室群的围岩支护方案进行了拟定，并通过二维弹塑性有限元法，模拟了有支护和无支护围岩的变形与应力状态，最终确定了合理的围岩支护参数。
Abstract
The Ciha gorge hydropower station undergroundpowerhouse is embedded deeply, and located in dense developmentregion of faults and interlayer disturbed belt, also affected by layerthickness of the rock, so, the types of surrounding rock is complex.It is very important for ensuring the normal operation of hydropowerstation that determine the support scheme of each cavity. In this paper,the surrounding rock with support is designed, and the deformationand stress of surrounding rock is simulated in case of supporting andno supporting using nonlinear 2D FEM. Ultimately the reasonablesupporting parameters of surrounding rock is determined.
关键词
地下洞室群/数值分析/稳定性分析/支护设计/茨哈峡水电站Key words
underground cavern groups/numeric analysis/stabilityanalysis/bracing design/Ciha gorge hydropower引用本文复制引用
出版年
2018
NETL
NSTL
万方数据