摘要
岩石锚杆作为地下工程的主要支护构件之一,对地下工程的稳定性起着重要的作用,同时,在地下工程的投资中占有相当大的比重。因此,合理的锚固方案对地下工程的安全性和经济性有着重要意义。采用弹塑性模型,设计3种锚固方案对某水利枢纽地下厂房进行了有限元计算,对锚固体的力学效应采用等效方法,对比分析了各锚固方案的计算结果.
As one of the main support unit in underground engineering,bolt is important to underground engineering stability.In addition,it is of great portion of underground engineering investment.Therefore, reasonable bolt support scheme is of great importance to both safety and economy of underground engineering.In this paper,by using finite element method,three bolt support schemes are designed to simulate the excavation of an underground hydropower house.An equivalent model is used in the analysis to simulate mechanical effect of bolt.The comparison of numerical results with different bolt support schemes is given.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第z1期2317-2321,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金委员会和清江水电开发有限责任公司联合资助的国家自然科学基金重点项目(59939190)
面上基金(50004007)资助项目.
关键词
数值分析
锚固
有限元法
开挖
地下厂房
numerical analysis
bolt support
FEM
excavation
underground power house
