NDLI: Effect of Groundwater Seepage on Uplift Resistance of Buried Pipelines

Content Provider	Springer Nature Link
Author	Kumar, Jyant Chakraborty, Debarghya
Copyright Year	2014
Abstract	The uplift resistance of pipelines buried in sands, in the presence of inclined groundwater flow, considering both upward and downward flow directions, has been determined by using the lower bound finite elements limit analysis in conjunction with nonlinear optimization. A correction factor (f $_{ γ }$), which needs to be multiplied with the uplift factor (F $_{ γ }$), has been computed to account for groundwater seepage. The variation of f $_{ γ }$ has been obtained as a function of i(γ $_{ w }$ /γ $_{ sub }$) for different horizontal inclinations (θ) of groundwater flow; where i = absolute magnitude of hydraulic gradient along the direction of flow, γ $_{ w }$ is the unit weight of water and γ $_{ sub }$ is the submerged unit weight of soil mass. For a given magnitude of i, there exists a certain critical value of θ for which the magnitude of f $_{ γ }$ becomes the minimum. An example has also been presented to illustrate the application of the results obtained for designing pipelines in presence of groundwater seepage.
Starting Page	595
Ending Page	605
Page Count	11
File Format	PDF
ISSN	03698203
Journal	Proceedings of the National Academy of Sciences, India Section A: Physical Sciences
Volume Number	84
Issue Number	4
e-ISSN	22501762
Language	English
Publisher	Springer India
Publisher Date	2014-10-05
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Seepage Uplift resistance Applied and Technical Physics Pipelines Plasticity Atomic, Molecular, Optical and Plasma Physics Limit analysis Quantum Physics Optimization Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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