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http://dx.doi.org/10.12652/Ksce.2010.30.4C.193

A Method Evaluating K0 of Granular Soil using DMT  

Choi, Sung-Kun (나우지오컨설턴트, 고려대학교 공과대학 건축사회환경공학부)
Lee, Moon-Joo ((주)한화건설, 고려대학교 공과대학 건축사회환경공학부)
Bae, Kyung-Doo (고려대학교 공과대학 건축사회환경공학부)
Lee, Woojin (고려대학교 공과대학 건축사회환경공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.4C, 2010 , pp. 193-200 More about this Journal
Abstract
This study suggests a method predicting at-rest coefficient of earth pressure ($K_0$) in order to evaluate the effect of stress history of granular soil. The method is based on the relation $K_D/K_0={\chi}(E_D/{\sigma}_m{^{\prime}})^{\delta}$, which is developed by combining two previously published relations such as $E_D/{\sigma}_m{^{\prime}}-{\psi}$ and $K_D/K_0-{\psi}$. As $K_D$ and $E_D$ are observed to be sensitive to the pre-stress, both indices are adopted for the estimation of $K_0$ value of granular soil. It is shown that the proposed $K_D/K_0-E_D/{\sigma}_m{^{\prime}}$ relation is insignificantly affected by the stress history. It is concluded from the comparative study that the proposed method, which uses only dilatometer test results to predict the $K_0$ of granular soil, provides more convenient and reliable prediction than other methods which use both CPT and DMT results.
Keywords
stress history; at-rest coefficient of earth pressure; state parameter; dilatometer test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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