Results 191 to 200 of about 553,168 (268)

Centrifuge Tests of Macroscopic and Mesoscopic Investigation into Effects of Seismic Histories on Sand Liquefaction Resistance

Journal of earthquake engineering, 2020
Centrifuge shaking table tests were conducted to reveal the intrinsic mechanisms of the effects caused by complicated seismic histories on the liquefaction resistance of a saturated sand deposit. The centrifuge model was shaken by a well-designed seismic
B. Ye, Xiao-Chuang Xie, Teng Zhao, S. Song, Zijun Ma, Xiaoqing Feng, Jinhang Zou, Huihao Wang   +7 more
semanticscholar   +1 more source

Liquefaction potential of reinforced sand

Geotextiles and Geomembranes, 1994
Abstract A simple stress-controlled cyclic triaxial testing system developed for liquefaction testing is described. Using this system, a series of cyclic undrained triaxial tests were performed on sands with different densities and with different types of reinforcements to investigate the effect of reinforcement in enhancing resistance to ...
N.R. Krishnaswamy, N. Thomas Isaac
openaire   +2 more sources

Comparisons on liquefaction behavior of saturated coral sand and quartz sand under principal stress rotation

Marine georesources & geotechnology, 2021
A series of undrained cyclic axial-torsional shear tests on saturated coral sand and quartz sand under linear, circular, and heart stress paths are performed.
Wei-jia Ma, You Qin, K. Zhao, Guoxing Chen   +3 more
semanticscholar   +1 more source

Statistical Analysis of Sand Liquefaction

Journal of the Geotechnical Engineering Division, 1981
A consistent set of stochastic models is developed for the liquefaction resistance of a homogeneous mass of sand, such as a laboratory sample or small element of in situ material. A probabilistic model for liquefaction in the laboratory for undrained simple shear tests is developed first.
Michael N. Fardis, Daniele Veneziano
openaire   +1 more source

Liquefaction and post-liquefaction assessment of lightly cemented sands

Canadian Geotechnical Journal, 2020
Post-liquefaction response of lightly cemented sands during an earthquake may change and become similar to uncemented sands due to bonding breakage. In the current study, the effect of degree of cementation on liquefaction and post-liquefaction behaviour of lightly cemented sands was studied through a series of cyclic and monotonic triaxial tests ...
Rasouli, Habib, Fatahi, Behzad, Nimbalkar, Sanjay   +2 more
openaire   +1 more source

Cyclic liquefaction strength of sands

Earthquake Engineering & Structural Dynamics, 1979
AbstractThrough an energy approach, a model is proposed to predict the cyclic liquefaction strength of saturated sands in terms of their static shear strengths. Plots of cyclic liquefaction strength versus relative density and also versus modified standard penetration resistance are presented for various uniformity coefficients and different numbers of
N. Mostaghel, K. Habibagahi
openaire   +1 more source

Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre

Geotextiles and Geomembranes, 2021
The present study provides an insight into the effect of recycled carpet fibre on the mechanical response of clean sand as backfill material subjected to monotonic loading and cyclic loading as well as post-liquefaction resistance of both unreinforced ...
H. Rasouli, Behzad Fatahi
semanticscholar   +1 more source

Liquefaction and Fabric of Sand

Journal of Geotechnical Engineering, 1984
It is shown for simple shearing that the liquefaction and densification potentials of a cohesionless sample of sand do not necessarily decrease because of preliquefaction or because of large amplitude (drained) prestraining. In fact, in simple shearing, the resistance to liquefaction (undrained) or densification (drained) of a preliquefied sample ...
S. Nemat‐Nasser, K. Takahashi
openaire   +1 more source

A novel approach for sand liquefaction prediction via local mean-based pseudo nearest neighbor algorithm and its engineering application

Advanced Engineering Informatics, 2019
The prediction method plays crucial roles in accurate prediction of sand liquefaction. Recently, machine learning has been widely used for prediction of sand liquefaction, and the Local Mean-based Pseudo Nearest Neighbor (LMPNN) algorithm, one of machine
Shuai Huang, Mingming Huang, Y. Lyu
semanticscholar   +1 more source

Influence of Specimen Preparation on the Liquefaction Behaviors of Sand and Its Mesoscopic Explanation

, 2021
Specimen preparation methods and the resulting fabric can significantly influence the mechanical behavior of sand.
Xueqian Ni, B. Ye, Feng Zhang, Xiaoqing Feng   +3 more
semanticscholar   +1 more source