Abstract
At-rest coefficient of earth pressure, K 0, has been known to be an indirect property reflecting the stress history of sand. In this study, a series of CPTs and DMTs are performed in the calibration chamber to develop the method estimating K 0 value. The method is based on the relation K D/K 0=χ(E D/σ m′) δ, which is developed by combining two relations such as E D/σ m′-ψ and K D/K 0-ψ. It is verified that the relation between K D/K 0 and E D/σ m′ works well for both Busan and Ticino sands. The suggested method is observed to provide more accurate K 0 value than previous ones do, and it is applicable to OC sand as well as NC sand. Main advantage of the suggested method is to estimate the K 0 value using only DMT results. As both K D and E D values are measured simultaneously in the same penetration, the spatial variation of sub-soil condition does not affect the accuracy of estimated K 0 value.
Original language | English |
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Publication status | Published - 2011 |
Event | 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 - Hong Kong, China Duration: 2011 May 23 → 2011 May 27 |
Other
Other | 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 |
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Country/Territory | China |
City | Hong Kong |
Period | 11/5/23 → 11/5/27 |
ASJC Scopus subject areas
- Soil Science
- Geotechnical Engineering and Engineering Geology