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Stability Analysis of Pressurized 3D Tunnel Face with Tensile Strength Cutoff
Publisher: ASCE
Abstract: The aim of this study is to propose an effective approach to evaluate the stability of a shield tunnel face with tensile strength cutoff by using the upper-bound limit analysis method. Based on the discretization and “point ...
Three-Dimensional Active and Passive Seismic Stability Analysis of Shallow Shield Tunnel Faces
Publisher: American Society of Civil Engineers
Abstract: Comprehensive assessment of the active/passive seismic stability of shallow tunnel faces is an urgent and complex task. This work establishes a promising three-dimensional (3D) approach using upper-bound limit analysis to ...
Semianalytical Solutions for Elastic–Brittle–Plastic Surrounding Rock under Biaxial In Situ Stress Field Based on Unified Strength Criterion
Publisher: ASCE
Abstract: Semianalytical solutions for circular tunnels under biaxial in situ stress fields are developed in this study. The surrounding rock is assumed to behave as an elastic–brittle–plastic model and is characterized by the unified ...
Three-Dimensional Seismic Bearing Capacity Assessment of Heterogeneous and Anisotropic Slopes
Publisher: ASCE
Abstract: This study proposed an effective approach to accurately evaluate the three-dimensional (3D) seismic bearing capacity of heterogeneous and anisotropic slopes in the framework of the upper-bound limit analysis theorem. An ...
Stability Assessments of Reinforced Tunnel Face Using Improved Homogenization Approach
Publisher: ASCE
Abstract: In this work, the stability of a reinforced tunnel face is examined by combining the homogenization method with the kinematic approach of limit analysis. A three-dimensional (3D) heterogeneous and anisotropic failure ...