| Summary: | 碩士 === 淡江大學 === 土木工程研究所 === 82 === This paper utilizes the Prandtl-Terzaghi mode for
calculation of the bearing capacity of shallow foundation under
an eccentric load. The fan-shaped free body for stress
analysis consists of two lines and part of a logarithmic
spiral. Rankine''s state of stress is utilized in the
analysis. The calculated bearing capacity factors Nc,Nq,Nr
are tabulated for quick reference. Result shows that the
bearing capacity factors for vertical concentric loads are
comparable with respective factors from literature when a
rough base is assumed. When a shallow foundation is subjected
to a eccentric load, the calcutated bearing capacity compare
favorably with Meyerhof''s and Saran and Prakash''s test
results , but larger differences are observed when
compared with Purkayastha and Char''s test result.
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