Kumar, Jyant and Naskar, Tarun
(2012)
*Vertical uplift capacity of a group of two coaxial anchors in a general c-phi soil.*
In: Canadian Geotechnical Journal / Revue Canadienne de Géotechnique, 49
(3).
pp. 367-373.

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## Abstract

The vertical uplift resistance of a group of two horizontal coaxial strip anchors, embedded in a general c-phi soil (where c is the unit cohesion and phi is the soil friction angle), has been determined by using the lower bound finite element limit analysis. The variation of uplift factors F-c and F-gamma, due to the components of soil cohesion and unit weight, respectively, with changes in depth (H)/width (B) has been established for different values of vertical spacing (S)/B. As compared to a single isolated anchor, the group of two anchors provides a significantly greater magnitude of F-c for phi <= 20 degrees and with H/B >= 3. The magnitude of F-c becomes almost maximum when S/B is kept closer to 0.5H/B. On the other hand, with the same H/B, as compared to a single anchor, hardly any increase in F-gamma occurs for a group of two anchors.

Item Type: | Journal Article |
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Related URLs: | |

Additional Information: | Copyright of this article belongs to NRC Research Press. |

Keywords: | anchors;failure;finite elements;limit analysis;optimization; soils |

Department/Centre: | Division of Mechanical Sciences > Civil Engineering |

Date Deposited: | 28 Mar 2012 05:25 |

Last Modified: | 28 Mar 2012 05:25 |

URI: | http://eprints.iisc.ernet.in/id/eprint/44085 |

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