Liquefaction Assessment Using the CPT and Accounting for Soil Ageing

Abstract

Due to its continuous data recording capability, excellent repeatability and accuracy, relatively low cost and simplicity of operation, the cone penetration test (CPT) offers enhanced liquefaction assessment over its predecessor the standard penetration test (SPT). However, soil ageing, which influences the cyclic resistance ratio (CRR), is difficult, if not impossible, to be detected by the CPT due to disturbance during the test. This situation may lead to excessively conservative estimation of CRR values which result in conservative assessment of liquefaction potential. This paper presents and discusses liquefaction assessment using the CPT and methods for accounting for soil ageing. A field study, conducted at Gillman, South Australia, is presented and the study site is assessed for liquefaction potential. This paper also explores the influence of soil ageing on the subsequent liquefaction assessment.

Site response and liquefaction hazard analysis of Hawassa town, Main Ethiopian Rift

“…Generally, the liquefaction potential is predicted where there is possibility of increase in pore water pressure and loss of shear strength occurred in a soil. Hence, the liquefaction potential was predictable at site 1 (Figure 10A) due to increase in pore water pressure and loss Frontiers in Built Environment frontiersin.org of shear strength occurred in a soil (Ganapathy and Rajawat, 2012;Setiawan and Jaksa, 2018;Subedi and Acharya, 2022), but the soil at site 2 as shown in Figure 10B and site 3 at Figure 10C, site 4 at Figure 11A and site 5 at Figure 11B was not predictable as they had no chance of pore water pressure and loss of shear strength for the given ground motion (Naik et al, 2020). Thus, the result of this study was supported by the findings of Ji et al (2021).…”

Liquefaction Vulnerability Analysis as a Coastal Spatial Planning Concept in Pariaman City – Indonesia

“…The level of soil subsidence susceptibility zones due to liquefaction was obtained by calculating the total soil subsidence at each the Conus penetration test, using the "Simplified Procedure" method [2,21,22] and approach using GIS. The results of the soil subsidence calculation are used to obtain the soil subsidence vulnerability zones due to liquefaction based on the classification in Table 1 follows.…”