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Estimation of Peak Acceleration and Bending Moment for Pile-Raft Systems Embedded in Soft Clay Subjected to Far-Field Seismic Excitation
Publisher: American Society of Civil Engineers
Abstract: An extensive suite of three-dimensional finite-element simulations was carried out to examine the response of pile-raft-soil systems under seismic excitation representative of far-field events. The numerical procedure was ...
Metamodel-Based Reliability Analysis in Spatially Variable Soils Using Convolutional Neural Networks
Publisher: ASCE
Abstract: In recent years, the random field finite-element method (FEM) has been used increasingly in geotechnical engineering to carry out analyses that account for the inherent spatial variability in the physical and mechanical ...
Deep Learning–Based Prediction of Tunnel Face Stability in Layered Soils Using Images of Random Fields
Publisher: American Society of Civil Engineers
Abstract: The stability analysis of tunnel faces in multilayered soils presents challenges due to the inherent variability in natural soils. Although the random field finite-element methods offer a reliable approach to address such ...
Experimental Study on the Propagation of Low-Velocity Impact Waves in Sand Using Particle Image Velocimetry
Publisher: ASCE
Abstract: Particle image velocimetry (PIV) is a hybrid experimental–digital technique that allows for the noncontact measurement of the displacements and strains in granular media. It has seen widespread applications in the laboratory ...
Failure Modes of Tunnels with Improved Soil Surrounds
Publisher: American Society of Civil Engineers
Abstract: This paper presents the study of possible failure mechanisms and stability of large-diameter tunnels in cement-treated soil surrounds. The failure modes and critical tunnel support pressure of tunnels with varying strength ...
Wave Reflection Effects on Bender Element Test of Very Stiff Clay
Publisher: ASCE
Abstract: A common source of error in bender element testing lies in the determination of the shear wave arrival time arising from the near-field effect, which is attributed to shear wave–like motion of the compression wave obscuring ...