Geotechnical
No Access Effect of Soil Models on the Prediction of Tunnelling-induced Deformations of Structures
Author(s) Giorgia Giardina, MSc, PhD Nunzio Losacco, MSc, PhD Matthew J. DeJong, MSc, PhD Giulia M. B. Viggiani, PhD Robert J. Mair, MA, PhD, CBE, FREng, FICE, FRS Abstract Computational modelling of the effect of underground excavations on adjacent structures...
Insights into the Transport and Fragmentation Characteristics of Earthquake-Induced Rock Avalanche: Numerical Study
Aouthor(s) Ge Gao ; Mohamed A. Meguid, Ph.D., M.ASCE ; Luc E. Chouinard, Sc.D. ; and Chong Xu, Ph.D Abstract The earthquake-induced rock avalanche in the Tangjia Valley was the most notable geological disaster triggered by the Lushan earthquake in 2013. In...
Finite-Element Study for Seismic Structural and Global Stability of Cantilever-Type Retaining Walls
Aouthor(s) Junied Bakr; Syed Mohd Ahmad; and omenico Lombardi Abstract This paper investigates the structural and global stability of a cantilever-type retaining wall under seismic loading using numerical modelling. A new and robust approach is proposed to...
Yao Li, S.M.ASCE; Yunming Yang; Hai-Sui Yu, M.ASCE; and Gethin Roberts
Aouthor(s) Yao Li, S.M.ASCE; Yunming Yang; Hai-Sui Yu, M.ASCE; and Gethin Roberts Abstract Stress–strain responses of Leighton Buzzard sand are investigated under bidirectional shear. The tests are conducted by using the variable direction dynamic cyclic simple...
Structural Analysis for Shallow Tunnels in Soft Soils
Aouthor(s) Minh Ngan Vu; Wout Broere; and Johan W. Bosch Abstract Generally, studies on structural design for bored tunnels focus on moderate to deep tunnels (cover-to-diameter ratio C/D ≥ 2). Such tunnel design methods cannot be used for shallow-situated bored...
Coupling Elasto-plastic Behaviour of Unsaturated Soils with Piecewise Linear Large-strain Consolidation
Authors: Shunchao Qi* Paul Simms† Farzad Daliri‡ Sai Vanapalli§ Abstract Slurried soils or tailings are often deposited in layers that undergo complex stress paths in terms of desiccation and loading, as a given layer may undergo variable degrees of desiccation...
Load-controlled Cyclic T-bar Tests: A New Method to Assess Effects of and Consolidation
Authors: C. D. O'Loughlin* Z. Zhou† S. A. Stanier‡ D. J. White§ Abstract Full-flow T-bar and ball penetrometer tests are often used to measure intact and remoulded soil strengths, with the latter determined after several large-amplitude displacement cycles. In...
Drained Response of Rigid Piles in Sand under an Inclined Tensile Load
Authors: Ting Huang* Conleth O'Loughlin† Christophe Gaudin† Yinghui Tian‡ Ting Lu† Abstract The response of rigid piles in sand to an inclined tensile load is poorly documented and understood, particularly when the load is cyclic. This is becoming relevant for...
Using FBGS to Estimate the Horizontal Response of a Monopile in a Geotechnical Centrifuge A
uthors: Zhong-Sen Li, PhD Matthieu Blanc, PhD Luc Thorel, PhD Abstract A circular aluminium tube 50 mm in diameter was instrumented with two optical fibres, each of which consists of 13 fibre Bragg grating sensors (FBGS). The performance of the FBGS was...