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RISFace Stability Analysis for a Shield-Driven Tunnel in Anisotropic and Nonhomogeneous Soils by the Kinematical Approach
Publisher: American Society of Civil Engineers
Abstract: The stability on a tunnel face is of great practical significance for safe construction in tunnel engineering. In this work, an advanced three-dimensional (3D) failure mechanism is extended to the face stability analysis ...
Face Stability Analysis for a Shield-Driven Tunnel in Anisotropic and Nonhomogeneous Soils by the Kinematical Approach
Publisher: American Society of Civil Engineers
Abstract: The stability on a tunnel face is of great practical significance for safe construction in tunnel engineering. In this work, an advanced three-dimensional (3D) failure mechanism is extended to the face stability analysis ...
Probabilistic Analysis of a Rock Tunnel Face Using Polynomial Chaos Expansion Method
Publisher: American Society of Civil Engineers
Abstract: The polynomial chaos expansion method was used to perform probabilistic analysis on a tunnel face driven in rock masses. The generalized Hoek-Brown (HB) failure criterion was used to characterize the strength of rock masses. ...
Three-Dimensional Static and Seismic Stability Analysis of a Tunnel Face Driven in Weak Rock Masses
Publisher: American Society of Civil Engineers
Abstract: Face stability is an important issue for tunnel designs and constructions. This study investigated the seismic face stability of tunnels drilling in heavily fractured rock masses that follow the generalized Hoek–Brown yield ...
Probabilistic Stability Analysis of a Three-Dimensional Rock Slope Characterized by the Hoek-Brown Failure Criterion
Publisher: American Society of Civil Engineers
Three-Dimensional Stability of a Slope Subjected to Seepage Forces
Publisher: American Society of Civil Engineers
Abstract: Three-dimensional (3D) stability of a slope subjected to seepage forces is studied in this work in light of the kinematic approach of limit analysis. The widely used horn model for 3D stability of slopes is presented and ...
Stability Charts for Rock Slopes Subjected to Water Drawdown Based on the Modified Nonlinear Hoek-Brown Failure Criterion
Publisher: American Society of Civil Engineers
Abstract: Because of the change in hydraulic gradient of a fully or partially submerged rock slope caused by a drop in the external or internal water level, enhanced seepage forces may lead to slope instability and collapse. Based ...
3D Discretized Rotational Failure Mechanism for Slope Stability Analysis
Publisher: ASCE
Abstract: The kinematical approach of limit analysis has been historically employed to assess slope stability in the geotechnical community, for which most three-dimensional (3D) failure mechanisms are generally based on a composite ...
Advance Rate Predictions of Tunnel Boring Machines Using Bayesian-Optimized CNN-LSTM
Publisher: American Society of Civil Engineers
Abstract: During the tunnelling process of a tunnel boring machine (TBM), accurately predicting the advance rate (AR) is highly desirable for enhancing construction efficiency and safety. Inaccurate AR estimates may lead to extended ...
Three-Dimensional Stability of Slopes under Water Drawdown Conditions
Publisher: American Society of Civil Engineers
Abstract: In practical engineering, slopes near reservoirs are susceptible to collapse during the rising and falling of water levels, resulting in huge financial losses. Three-dimensional (3D) upper-bound analysis is an effective ...