Stability analysis and reliability optimization design of tunnel engineering considering uncertainty
Uncertainty is a critical property of rock engineering and is important to stability analysis,design and safety construction of rock engineering.But the traditional determinate methods do not consider the uncertainty of rock engineering.In this paper,a novel approach,which considers the uncertainty through combining reliability theory,experimental design,numerical simulation and response surface,was proposed and applied to tunnel engineering.The uncertainty analysis model of tunnel was presented in brief.An un-certainty—based design method was proposed based on the above model.The proposed method was verified by a numerical example.The results show that the proposed method provides obvious instructions for de-sign,stability analysis and risk analysis in tunnel engineering,and is an effective and feasible approach for tunnel uncertainty analysis.
国家科技期刊平台
NSTL
万方数据
