摘要
在隧洞围岩稳定性分析中,运用可靠度理论比传统的安全系数法更符合实际。以圆形隧洞围岩的弹塑性分析的解析解为基础,建立圆形隧洞围岩稳定性分析的可靠度分析模型。考虑到功能函数的高度非线性,采用Fortran语言编制可靠指标的计算程序,并结合实例对可靠指标的影响因素进行分析。
In the stability analysis of tunnel surrounding rock,reliability theory is more realistic than traditional safety factor method.Based on the analytical solution of elastic-plastic analysis on round tunnel surrounding rock,the reliability analysis model for analyzing the stability of round tunnel surrounding rock is established.Considering the performance function is highly nonlinear,it uses Fortran language to compile the calculation program of reliability index and analyzes the influencing factor of reliability index combined with engineering practice.
出处
《交通标准化》
2011年第17期133-135,共3页
Communications Standardization
基金
河北省交通厅科技计划项目(Y-2010131)
关键词
隧洞围岩
极限状态方程
可靠度指标
验算点法
蒙特卡洛法
tunnel surrounding rock
limit state equation
reliability index
checking point method
Monte-Carlo method
