Effects of Non-plastic Fines on Liquefaction Resistance of Sandy Soils

2010 ◽  
pp. 125-144 ◽  
Author(s):  
Misko Cubrinovski ◽  
Sean Rees ◽  
Elisabeth Bowman
Keyword(s):  
Sandy Soils ◽  
Liquefaction Resistance

Penetration Testing of Liquefaction Potential of Ashes due to Seismic Load

2016 ◽  
Vol 837 ◽  
pp. 140-145
Author(s):  
Ivan Slavik
Keyword(s):  
Sandy Soils ◽  
Unit Weight ◽  
Seismic Load ◽  
High Porosity ◽  
Liquefaction Resistance ◽  
Liquefaction Potential ◽  
Penetration Testing ◽  
Lake City ◽  
Penetration Tests ◽  
Cpt Test

Geomaterials with typical low unit weight and high porosity are significantly prone to liquefaction as a result of dynamic – seismic load. Investigation of geomaterials that are prone to liquefaction due to seismic load can use certain SPT and CPT penetration tests. The method of investigating liquefaction caused by seismic activity was developed based on numerous penetration tests of sandy or silty–sandy soils and was elaborated in detail at the Workshop on Evaluation of Liquefaction Resistance of Soil, NCEER, Salk Lake City, USA, 1996. In the present paper, the results of penetration CPT test conducted at the ash impoundment in Zemianske Kostoľany are analyzed using methodology NCEER.

Evaluating cyclic liquefaction potential using the cone penetration test

1998 ◽  
Vol 35 (3) ◽  
pp. 442-459 ◽  
Author(s):  
P K Robertson ◽  
CE (Fear) Wride
Keyword(s):  
Earthquake Engineering ◽  
Sandy Soils ◽  
Cone Penetration Test ◽  
Soil Liquefaction ◽  
Penetration Test ◽  
Cone Penetration ◽  
Liquefaction Resistance ◽  
Liquefaction Potential ◽  
Engineering Research ◽  
Research Workshop

Soil liquefaction is a major concern for structures constructed with or on sandy soils. This paper describes the phenomena of soil liquefaction, reviews suitable definitions, and provides an update on methods to evaluate cyclic liquefaction using the cone penetration test (CPT). A method is described to estimate grain characteristics directly from the CPT and to incorporate this into one of the methods for evaluating resistance to cyclic loading. A worked example is also provided, illustrating how the continuous nature of the CPT can provide a good evaluation of cyclic liquefaction potential, on an overall profile basis. This paper forms part of the final submission by the authors to the proceedings of the 1996 National Center for Earthquake Engineering Research workshop on evaluation of liquefaction resistance of soils.Key words: cyclic liquefaction, sandy soils, cone penetration test

Liquefaction Resistance of Sandy Soils under Partially Drained Condition

2009 ◽  
Vol 135 (8) ◽  
pp. 1032-1043 ◽  
Author(s):  
Yoichi Yamamoto ◽  
Masayuki Hyodo ◽  
Rolando P. Orense
Keyword(s):  
Sandy Soils ◽  
Liquefaction Resistance

Preshake: A Database for Centrifuge Modeling of the Effect of Seismic Preshaking History on the Liquefaction Resistance of Sands

2016 ◽  
Vol 32 (3) ◽  
pp. 1925-1940 ◽  
Author(s):  
Waleed El-Sekelly ◽  
Tarek Abdoun ◽  
Ricardo Dobry
Keyword(s):  
Sandy Soils ◽  
Rensselaer Polytechnic Institute ◽  
Centrifuge Modeling ◽  
Polytechnic Institute ◽  
Liquefaction Resistance ◽  
Centrifuge Testing ◽  
Geotechnical Centrifuge ◽  
Analytical Applications ◽  
Testing Facility ◽  
Materials Used

Several researchers found that the behavior of natural preshaken soils can be very different from artificial recent fills. This paper presents an extensive database of two very long centrifuge experiments (CS-5-1-1 and CC-5-1-1) performed both on silty and clean sand at the geotechnical centrifuge testing facility at Rensselaer Polytechnic Institute (RPI). The two experiments test the effect of seismic preshaking history on the liquefaction resistance of sandy soils. The database described herein was generated using the NEEShub online DataStore tool under the name “PRESHAKE: Centrifuge modeling of the effect of seismic preshaking on the liquefaction resistance of sands” (DOI: http://dx.doi.org/10.4231/D38K74X78 ). The paper discusses the tools and materials used in the experiments along with an explanation of each item in the database. Sample analyses are also presented in the paper to give an insight on the capabilities of the database for numerical and analytical applications. The paper is concluded with some possible applications along with tips and limitations of the database.

scholarly journals Liquefaction resistance of christchurch sandy soils from direct simple shear tests

2021 ◽  
Vol 141 ◽  
pp. 106489
Author(s):  
Claudio Cappellaro ◽  
Misko Cubrinovski ◽  
Jonathan D. Bray ◽  
Gabriele Chiaro ◽  
Michael F. Riemer ◽  
...  
Keyword(s):  
Simple Shear ◽  
Sandy Soils ◽  
Shear Tests ◽  
Liquefaction Resistance ◽  
Direct Simple Shear

Appraising cone penetration test based liquefaction resistance evaluation methods: artificial neural network approach

1999 ◽  
Vol 36 (3) ◽  
pp. 443-454 ◽  
Author(s):  
C Hsein Juang ◽  
Caroline Jinxia Chen ◽  
Yong-Ming Tien
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Success Rate ◽  
Sandy Soils ◽  
Cone Penetration Test ◽  
Penetration Test ◽  
Cone Penetration ◽  
Liquefaction Resistance ◽  
Ann Models ◽  
Artificial Neural

This paper evaluates and compares two comprehensive cone penetration test (CPT) based methods for evaluating liquefaction resistance of sandy soils. The comparison is made based on the results obtained from artificial neural network (ANN) analyses. Two methods are compared, one by Olsen and his colleagues at the Waterways Experiment Station and one by Robertson and his colleagues at the University of Alberta. ANN models are created to approximate the two CPT-based methods so that they can easily be compared using a large database. The results show that ANN models can approximate both Robertson and Olsen methods well, and that both methods are fairly accurate in predicting liquefaction resistance. The Robertson method has a success rate of 89% in predicting liquefied cases, a success rate of 76% in predicting nonliquefied cases, and an overall success rate of 84%. The success rates for the Olsen method are 68%, 89%, and 77%, respectively, in predicting liquefied cases, nonliquefied cases, and all cases. Both methods are considered accurate in predicting liquefaction resistance of sandy soils. The Robertson method is slightly more accurate than the Olsen method. The issue of the propagation of potential uncertainties in the soil parameters and solution model is also discussed.

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