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    Stability Analysis of Pressurized 3D Tunnel Face with Tensile Strength Cutoff 

    Source: International Journal of Geomechanics:;2021:;Volume ( 021 ):;issue: 011:;page 04021226-1
    Author(s): Guang-Hui Chen; Jin-Feng Zou; Shi-Xiong Liu
    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 ...
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    Three-Dimensional Active and Passive Seismic Stability Analysis of Shallow Shield Tunnel Faces 

    Source: International Journal of Geomechanics:;2024:;Volume ( 024 ):;issue: 010:;page 04024226-1
    Author(s): Jin-Feng Zou; Shi-Wei Li; Guang-Hui Chen
    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 ...
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    Semianalytical Solutions for Elastic–Brittle–Plastic Surrounding Rock under Biaxial In Situ Stress Field Based on Unified Strength Criterion 

    Source: International Journal of Geomechanics:;2023:;Volume ( 023 ):;issue: 010:;page 04023170-1
    Author(s): Yu-Ming Sheng; Jin-Feng Zou; Guang-Hui Chen
    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 ...
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    Three-Dimensional Seismic Bearing Capacity Assessment of Heterogeneous and Anisotropic Slopes 

    Source: International Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 009:;page 04022148
    Author(s): Guang-Hui Chen; Jin-Feng Zou; Yu-Ming Sheng; Jing-Yu Chen; Tao Yang
    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 ...
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    Stability Assessments of Reinforced Tunnel Face Using Improved Homogenization Approach 

    Source: International Journal of Geomechanics:;2021:;Volume ( 021 ):;issue: 010:;page 04021183-1
    Author(s): Guang-Hui Chen; Jin-Feng Zou; Xin-Yan Xiang; Qiu-Jing Pan; Ze-Hang Qian
    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 ...
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