Stability of Unlined Elliptical Tunnels in Rock Masses
Jim Shiau, Suraparb Keawsawasvong, Sorawit Seehavong
Abstract
Highlights •A state of art approach to evaluate the elliptical tunnel stability of Hoek–Brown rock mass.•Rigorous upper bound and lower bound solutions of elliptical tunnel stability are derived using advanced finite element limit analysis.•Comprehensive design tables and equations are proposed for stability evaluation.
Topics & Concepts
Stability (learning theory)Limit analysisRock mass classificationUpper and lower boundsFinite element methodGeologyGeotechnical engineeringHoek–Brown failure criterionLimit (mathematics)Finite element limit analysisStructural engineeringEngineeringMathematicsComputer scienceMathematical analysisExtended finite element methodMachine learningGeotechnical Engineering and AnalysisGeotechnical Engineering and Underground StructuresGrouting, Rheology, and Soil Mechanics