000009722 001__ 9722
000009722 005__ 20141205153147.0
000009722 04107 $$aeng
000009722 046__ $$k2008-10-12
000009722 100__ $$aChen, Yun-Min
000009722 24500 $$aShear Wave Velocity-Based Liquefaction Resistance Evaluation: Semi-theoretical Considerations and  Experimental Validations

000009722 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009722 260__ $$b
000009722 506__ $$arestricted
000009722 520__ $$2eng$$aShear wave velocity measurements provide a promising approach to liquefaction resistance evaluation of sandy soils. Although various relationships between shear wave velocity (Vs) and liquefaction resistance (CRR) have been developed, most of them are phenomenological rather than physically-based. In this study, semi-theoretical considerations are given and predict a soil-type specific relationship between CRR and Vs normalized with respect to the minimum void ratio, confining stress and exponent n of Hardin equation. Undrained cyclic triaxial test and dynamic centrifuge model test were performed on sands with Vs measured by bender elements to verify this relationship. Further investigation on similar laboratory studies resulted in a large database of sandy soils, which reveals that CRR is proportional to the 4 power of Vs at statistical level. Comparisons with field case histories show that the present lower-bound CRR-Vs curve is a reliable prediction of liquefaction resistance for most sandy soils, while the accurate evaluation for a specific site requires the development of site-specific liquefaction resistance curve.

000009722 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009722 653__ $$aLiquefaction, Shear wave velocity, Dynamic centrifuge test, Bender elements, Soil-type specific, Relationship

000009722 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009722 720__ $$aChen, Yun-Min$$iZhou, Yan-Guo$$iKe, Han
000009722 8560_ $$ffischerc@itam.cas.cz
000009722 8564_ $$s508360$$uhttps://invenio.itam.cas.cz/record/9722/files/04-01-0043.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-01-0043.
000009722 962__ $$r9324
000009722 980__ $$aPAPER