Journal ArticleDOI
Influence of SPT Procedures in Soil Liquefaction Resistance Evaluations
TLDR
In this paper, the authors clarified the meaning of the values of standard penetration resistance used in correlations of field observations of soil liquefaction with values of N1 measured in SPT tests.Abstract:
The purpose of this paper is to clarify the meaning of the values of standard penetration resistance used in correlations of field observations of soil liquefaction with values of N1 measured in SPT tests. The field data are reinterpreted and plotted in terms of a newly recommended standard, (N1)60, determined in SPT tests where the driving energy in the drill rods is 60% of the theoretical free‐fall energy. Energies associated with different methods of performing SPT tests in different countries and with different equipment are summarized and can readily be used to convert any measured N‐value to the standard (N1)60 value. Liquefaction resistance curves for sands with different (N1)60 values and with different fines contents are proposed. It is believed that these curves are more reliable than previous curves expressed in terms of mean grain size. The results presented are in good accord with recommended practice in Japan and China and should, thus, provide a useful basis for liquefaction evaluations in ...read more
Citations
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Journal ArticleDOI
Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of Soils
T. L. Youd,Izzat M. Idriss +1 more
TL;DR: In 1996, a workshop sponsored by the National Center for Earthquake Engineering Research (NCEER) was convened by Professors T. L. Youd and I. M. Idriss with 20 experts to review developments over the previous 10 years as mentioned in this paper.
Journal ArticleDOI
Evaluating cyclic liquefaction potential using the cone penetration test
TL;DR: In this article, the phenomena of soil liquefaction are described, and suitable definitions and definitions are provided for these phenomena are reviewed and an update of the existing definitions is provided.
Journal ArticleDOI
Liquefaction resistance of soils from shear-wave velocity
TL;DR: A simplified procedure using shear-wave velocity measurements for evaluating the liquefaction resistance of soils is presented in this paper, which follows the general format of the Seed-Idriss simplified procedure based on standard penetration test blow count.
Journal ArticleDOI
Semi-empirical procedures for evaluating liquefaction potential during earthquakes
TL;DR: In this paper, semi-empirical procedures for evaluating the liquefaction potential of saturated cohesionless soils during earthquakes are re-examined and revised relations for use in practice are recommended.
Journal ArticleDOI
Standard penetration test-based probabilistic and deterministic assessment of seismic soil liquefaction potential
K. Onder Cetin,Raymond B. Seed,Armen Der Kiureghian,Kohji Tokimatsu,Leslie F. Harder,Robert E. Kayen,Robert E. S. Moss +6 more
TL;DR: In this paper, the authors present new correlations for assessment of the likelihood of initiation (or triggering) of soil liquefaction, which eliminate several sources of bias intrinsic to previous, similar correlations, and provide greatly reduced overall uncertainty and variance.
References
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Journal ArticleDOI
Evaluation of Liquefaction Potential Using Field Performance Data
TL;DR: In this article, a simplified procedure for evaluating the liquefaction potential of sand deposits using data obtained from standard penetration tests is reviewed, and the results of this study are then extended to other magnitude earthquakes using a combination of laboratory and field data.
Journal ArticleDOI
Soil Liquefaction and Cyclic Mobility Evaluation for Level Ground during Earthquakes
TL;DR: In this article, it is shown that the design engineer has two basic choices if he considers it appropriate to neglect the possible effects of drainage occurring during the period of cyclic stress applications: (1) to calculate the stresses induced in the ground by the design earthquake, and to compare these stresses with those required to cause cyclic mobility or liquefaction of representative samples in the laboratory.
Journal ArticleDOI
Closure to “Soil Liquefaction and Cyclic Mobility Evaluation for Level Ground during Earthquakes”
Journal ArticleDOI
Empirical correlation of soil liquefaction based on spt n-value and fines content
Kohji Tokimatsu,Yoshiaki Yoshimi +1 more
TL;DR: In this article, a critical review of field performance of sandy soil deposits during past earthquakes was conducted with special emphasis being placed on Standard Penetration Test N-values and fines content.
Journal ArticleDOI
Brief review of liquefaction during earthquakes in japan
TL;DR: A literature survey about liquefaction brought by earthquakes during the last century in Japan was performed as mentioned in this paper, where the authors compared the actual liquidation phenomena and site conditions, and found that the extent of liquefied zones are limited depending on the magnitude of the earthquakes.
Related Papers (5)
Simplified procedure for evaluating soil liquefaction potential
H. Bolton Seed,Izzat M. Idriss +1 more
Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of Soils
T. L. Youd,Izzat M. Idriss +1 more