Results 181 to 190 of about 4,874 (221)

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

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

Liquefaction of Dilating Sand

Earthquake Engineering and Soil Dynamics, 2005
The occurrence of liquefaction in the form of decreasing shear resistance in saturated sands has been investigated under small departures from the undrained condition. Volumetric deformations are inevitable in field problems on account of the spatial variation in excess pore pressures generated during the earthquake shaking an d their subsequent ...
A. Eliadorani, Y. P. Vaid
openaire   +1 more source

Liquefaction Study of Cemented Sand

Journal of the Geotechnical Engineering Division, 1980
The paper describes some aspects of a liquefaction investigation of a variably cemented sandy profile. Due to the difficulty involved in extracting undisturbed samples for testing an evaluation was made of the use of standard penetration test results (i.e., blow counts) and samples in studying such profiles.
Sam Frydman, Benzion Shaal, Rafael Baker, Joav Steinbach, Harry Horn, David Hendron   +5 more
openaire   +2 more sources

Liquefaction and Postliquefaction Behavior of Sand

Journal of Geotechnical Engineering, 1995
The static undrained behavior of saturated sand is shown to be dilative in triaxial compression, even in the loosest deposited state. However, the behavior in triaxial extension is contractive for relative densities of up to 60%, implying a profound anisotropy of response to undrained loading.
Y. P. Vaid, J. Thomas
openaire   +2 more sources

Liquefaction potential of reinforced sand

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 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

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

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

Seismic Response and Liquefaction of Sands

Journal of the Geotechnical Engineering Division, 1976
An effective stress analysis has been developed for determining the dynamic response of horizontal saturated sand deposits to earthquake motions consisting of vertically propagating shear waves. A hyperbolic stress-strain law is used for sands in shear and during the earthquake motions the modulus and damping properties of the sands are modified ...
W. D. Liam Finn, Geoffrey R. Martin, Peter M. Byrne   +2 more
openaire   +1 more source

Specimen Preparation and Liquefaction of Sands

Journal of the Geotechnical Engineering Division, 1974
This note presents results of a liquefaction testing program performed on three different sands, specimens of which were prepared by two common but different methods. Results demonstrate that specimen preparation methods significantly affected the liquefaction behavior.
openaire   +1 more source