期刊
UNDERGROUND SPACE
卷 2, 期 3, 页码 182-194出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.undsp.2017.05.004
关键词
Piezocone sounding; Overconsolidation ratio; Undrained shear strength; Prediction; Site investigation
资金
- International Science and Technology Cooperation Program of China [2015DFA71550]
- Japan Society for the Promotion of Science (JSPS) [15K06212]
- Grants-in-Aid for Scientific Research [15K06212] Funding Source: KAKEN
Methods for estimating the overconsolidation ratio (OCR) of soil deposits from piezocone sounding results have been investigated. Three existing methods have been briefly reviewed and a new method has been proposed. The proposed method can be applied to both normally consolidated/overconsolidated and underconsolidated deposits. Furthermore, existing methods have been modified so that they can be applied to underconsolidated deposits. Then, all the methods have been applied to 12 case histories collected from 6 different countries. The estimated values of OCR have been compared with the measured data. It has been shown that if the parameters (soil properties and empirical parameters) can be determined appropriately, then all the methods can achieve a reasonable prediction. It has also been shown that the proposed method exhibits a relatively better performance and results in less scattered data than the other methods. (C) 2017 Tongji University and Tongji University Press. Production and hosting by Elsevier B.V. on behalf of Owner.
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