Geotechnical
Application of Discrete-Element Numerical Simulation for Calculating the Stability of Dangerous Rock Mass: A Case Study
Author(s) Chong Shi ; Bo Yang ; Yiping Zhang ; and Junxiong Yang FULL TEXT Abstract An unstable rock mass is a common geological hazard in water conservancy and hydropower engineering in southwest China. The mechanical properties of a rock mass joint and the...
Interface Shear Behavior of Cementing Underground Mine Backfill
Author(s) Shuai Guo ; Mamadou Fall ; and Sada Haruna Abstract This paper presents the findings from an experimental investigation that was conducted to assess the shear behavior and the changes in the shear behavior and strength parameters for cemented paste...
Liquefied Strength and Its Relationship to Effective Stress
Authour(s) Robb Eric S. Moss, Ph.D., P.E., F.ASCE Abstract The residual strength of liquefied soil (su,r) is a large-strain strength variable often used for forecasting the seismic stability of dams, embankments, and mine tailings. This variable is usually...
Numerical Simulation of the Effect of High Confining Pressure on Drainage Behavior of Liquefiable Clean Sand
Author(s) W. El-Sekelly, M.ASCE; R. Dobry, M.ASCE; T. Abdoun, M.ASCE; and M. Ni, S.M.ASCE Abstract This article presents numerical simulations investigating pore pressure buildup of a sand layer with a free drainage boundary at the top under both low and high...
Contaminant Diffusion through a Novel Coextruded Vapor Barrier
Author(s) V. DiBattista and R. Kerry Rowe, Dist.M.ASCE Abstract Organic contaminant diffusion through a novel multilayer coextruded vapor barrier is examined for benzene, toluene, ethylbenzene, xylenes (BTEX), trichloroethylene (TCE), and tetrachloroethylene...
No AccessAnalysing the Effect of Principal Stress Rotation on Railway Tack Settlement by Discrete Element Method
Author(s) Xuecheng Bian* Wei Li* Yu Qian† Erol Tutumluer‡ Abstract Principal stress rotation induced by moving loads from trains significantly influences railway track settlement accumulation. The stationary cyclic loading commonly adopted to study railway...
Behaviour of Discrete Piles used to Stabilise a Free-covered Railway Embankment
Author(s) Joel A. Smethurst* Nicola Bicocchi† William Powrie* Anthony S. O'Brien‡ Abstract Many clay railway embankments in the UK are well over 100 years old, and now suffer from a range of stability and serviceability problems. A common means of remediating...
Mathematical Modelling of the Mechanical Response of Earth Embankments on Piled Foundations
Author(s) Claudio di Prisco* Luca Flessati† Gabriele Frigerio* Andrea Galli* Abstract Piled foundations are largely employed as settlement reducers in the design of artificial embankments on soft soil strata. The commonly employed design methods are, however,...
Glass-fibre-reinforced polymer: The Low Carbon Dioxide Option for Permanent Rock Bolts
Author(s) Alun H. Thomas, BA, PhD, CEng, MICE Abstract Traditionally steel has been used for rock bolts in tunnelling. Faced with the challenge of reducing mankind's environmental impact, it is necessary to look at using better alternatives....