Laboratory Validation of Ultra-Soft Soil Deformation Model

Autor:	Arul Arulrajah, Myint Win Bo, Kai Sin Wong, Victor Choa
Rok vydání:	2010
Předmět:	Physics Hydrogeology Effective stress Soil Science Sigma Geology Geometry Geotechnical Engineering and Engineering Geology Compression (physics) Physics::Geophysics Finite strain theory Architecture Geotechnical engineering Deformation (engineering) Terzaghi's principle Water content
Zdroj:	Geotechnical and Geological Engineering. 29:65-74
ISSN:	1573-1529 0960-3182
DOI:	10.1007/s10706-010-9351-3
Popis:	Ultra-soft soil with high moisture content will experience large strain deformation under one-dimensional compression with little or no gain in effective stress. Such deformation behaviour does not comply with Terzaghi’s effective stress gain theory. The e-log \( \sigma_{v}^{\prime } \) relationship of ultra-soft soil is non-linear with large compression index in the first order of log cycle. This paper proposes three compression indices (\( C_{c1}^{*} \), \( C_{c2}^{*} \) and \( C_{c3}^{*} \)) for stresses covering three log cycles. Good prediction of settlement magnitude is possible with these newly proposed compression parameters for ultra-soft soil. In addition, implicit finite difference model applying the large strain theory is also proposed and validated with results from laboratory measurements. The time factor curves for ultra-soft soil with large strain compression are also proposed and validated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ba3565eee15077393252dae89aa9897a https://doi.org/10.1007/s10706-010-9351-3 Zobrazit plný text záznamu Full text from SpringerLink