Development of region-specific soil behavior type index correlations for evaluating liquefaction hazard in Christchurch, New Zealand

BW Maurer, RA Green, S Van Ballegooy… - Soil Dynamics and …, 2019 - Elsevier
Utilizing an unprecedented database of field and laboratory test data from Christchurch,
New Zealand, this study develops deterministic and probabilistic correlations relating the …

True liquefaction triggering curve

S Upadhyaya, RA Green… - … of Geotechnical and …, 2023 - ascelibrary.org
Current simplified models for predicting liquefaction triggering and manifestation do not
account for the mechanisms of liquefaction triggering and surface manifestation in a …

Limitations of surface liquefaction manifestation severity index models used in conjunction with simplified stress-based triggering models

S Upadhyaya, RA Green, BW Maurer… - … of Geotechnical and …, 2022 - ascelibrary.org
The severity of surface manifestation of liquefaction is commonly used as a proxy for
liquefaction damage potential. As a result, manifestation severity index (MSI) models are …

Assessment of the efficacies of correction procedures for multiple thin layer effects on Cone Penetration Tests

KM Yost, RA Green, S Upadhyaya, BW Maurer… - Soil Dynamics and …, 2021 - Elsevier
Multiple interbedded fine-grained layers in a sand deposit have a “smoothing” effect on the
measured Cone Penetration Test (CPT) tip resistance (qc), resulting in a significant …

Selecting the optimal factor of safety or probability of liquefaction triggering for engineering projects based on misprediction costs

S Upadhyaya, BW Maurer, RA Green… - … of Geotechnical and …, 2021 - ascelibrary.org
In deterministic evaluations, liquefaction triggering potential is assessed by comparing the
computed factor-of-safety (FS) against liquefaction triggering to some minimal acceptable …

State-based assessment of cyclic liquefaction manifestation

J Macedo, L Vergaray - Soil Dynamics and Earthquake Engineering, 2024 - Elsevier
This study assesses the robustness of a framework based on critical state soil mechanics
(CSSM) principles in evaluating earthquake-induced liquefaction manifestation. The …

Influence of corrections to recorded peak ground accelerations due to liquefaction on predicted liquefaction response during the 2010-2011 Canterbury, New Zealand …

S Upadhyaya - Proc. 13th Australia New Zealand Conference on …, 2019 - par.nsf.gov
Evaluations of Liquefaction Potential Index (LPI) in the 2010-2011 Canterbury earthquake
sequence (CES) in New Zealand have shown that the severity of surficial liquefaction …

Spatial distribution characteristics of soil liquefaction potential in the Yellow River Subaquatic Delta, China

X Qin, Z Yang, Y Cui, X Liu, H Tian… - Marine Georesources & …, 2024 - Taylor & Francis
This paper aims to provide a design basis for engineering disaster prevention and mitigation
by accurately describing the spatial distribution of soil liquefaction. A group of in-situ Cone …

Effect of non-liquefiable high fines-content, high plasticity soils on liquefaction potential index (LPI) performance

S Upadhyaya, BW Maurer, RA Green… - … Engineering and Soil …, 2018 - ascelibrary.org
The liquefaction potential index (LPI) was found to significantly overpredict the severity of
observed liquefaction for a large subset of case histories compiled from Canterbury, New …

Selecting factor of safety against liquefaction for design based on cost considerations

S Upadhyaya, RA Green… - … for Protection and …, 2019 - taylorfrancis.com
The stress-based simplified procedure is the most widely used approach for evaluating
liquefaction triggering-potential of sandy soils. In deterministic liquefaction evaluations,“rules …