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- W1998918970 abstract "By incorporating the variation of peak soil friction angle (ϕ) with mean principal stress (σm), the effect of pipe diameter (D) on the vertical uplift resistance of a long horizontal pipeline embedded in sand has been investigated. The analysis has been performed by using the lower bound finite-element limit analysis in combination with nonlinear optimization. Three well-defined ϕ versus σm curves reported from literature for different sands have been used. It is observed that for a given embedment ratio, with an increase in pipe diameter, the magnitude of the uplift factor (Fγ) reduces quite significantly, which indicates the importance of considering scale effects while designing buried pipe lines. The scale effects have been found to become even more substantial with an increase in the embedment ratio. The analysis compares well with various theoretical results reported from literature. On the other hand, as compared to available centrifuge test results, the present analysis has been found to provide quite a higher magnitude of the uplift resistance when the theoretical prediction is based on peak soil friction angle. However, if the theoretical analysis is performed by using the friction angle that accounts for the progressive shear failure, the difference between the theoretical and centrifuge test results decreases quite significantly." @default.
- W1998918970 created "2016-06-24" @default.
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- W1998918970 date "2014-02-01" @default.
- W1998918970 modified "2023-10-01" @default.
- W1998918970 title "Vertical Uplift Resistance of Pipes Buried in Sand" @default.
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- W1998918970 doi "https://doi.org/10.1061/(asce)ps.1949-1204.0000149" @default.
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