期刊
CANADIAN GEOTECHNICAL JOURNAL
卷 40, 期 2, 页码 351-361出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/T02-122
关键词
limit equilibrium; bearing capacity; sand; dilatancy; strip footing; N-q and N-gamma factors
A limit equilibrium analysis is used in this paper to obtain the bearing capacity of a strip foundation on sand. Bearing capacity factors N-q and N-gamma are determined for a practical range of friction angles, using a minimization procedure. The dilatancy angle psi of the sand coupled with the apparent friction angle phi allows the use of a modified friction angle phi*, which is in turn employed in the analysis. Comparisons with previous published data indicate that the proposed analysis gives adequate results. It is also shown that consideration of a dilatancy angle psi < phi leads to a bearing capacity value that is lower than that obtained for the case with psi = phi.
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