Pullout capacity of vertical ground anchor in homogeneous sand

Vertical ground anchors are commonly used in foundation systems for structures requiring pullout resistance such as transmission towers, structures requiring lateral resistance, such as sheet pile walls. The work described in this research was primarily concerned with the pullout capacity of a verti...

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Main Author:	Mohd Rafe Abdul Majid
Format:	Thesis
Language:	English English
Published:	2011
Subjects:	TA715-787 Earthwork Foundations
Online Access:	https://eprints.ums.edu.my/id/eprint/40605/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/40605/2/FULLTEXT.pdf
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spelling	my-ums-ep.406052024-08-21T08:38:15Z Pullout capacity of vertical ground anchor in homogeneous sand 2011 Mohd Rafe Abdul Majid TA715-787 Earthwork. Foundations Vertical ground anchors are commonly used in foundation systems for structures requiring pullout resistance such as transmission towers, structures requiring lateral resistance, such as sheet pile walls. The work described in this research was primarily concerned with the pullout capacity of a vertical ground anchor embedded in dry homogeneous sand. One-laboratory model of anchor test apparatus is fabricated, with dry sand as a medium in sand box to form the homogeneous sand bed. Three models of circular anchors namely 25, 50 and 75 mm diameter and three states of homogeneous sand bed with different unit weights i.e., 15.89, 16.29 and 17.13 kN/mÂ³ , where the relative densities are 29%, 37% and 53% respectively were used in this research. The range of depth/ diameter (D/B) ratios are from 1 to 24 in order to cover shallow and deep anchors with the anchors being subjected to vertical loads under displacement control. A delineation technique is used to define the general failure surface of anchor in the soil mass during pullout. From the test, results show that the behavior and general failure surface of vertical ground anchor in dry homogeneous sand are similar to those reported by previous studies. The predicted formulae of pullout capacity for shallow and deep anchors in dry homogeneous sand are developed using semi-empirical method i.e., prediction of failure surface from pullout test and analytical method. From the comparison, results show that the predicted formula in similar trend with previous studies and experimental test. Overall, the study provides insights about pullout capacity of vertical ground anchor in homogeneous sand. At end of the research finding, suggestions are given for the further works in future. 2011 Thesis https://eprints.ums.edu.my/id/eprint/40605/ https://eprints.ums.edu.my/id/eprint/40605/1/24%20PAGES.pdf text en public https://eprints.ums.edu.my/id/eprint/40605/2/FULLTEXT.pdf text en validuser masters Universiti Malaysia Sabah School of Engineering and Information Technology
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	TA715-787 Earthwork Foundations
spellingShingle	TA715-787 Earthwork Foundations Mohd Rafe Abdul Majid Pullout capacity of vertical ground anchor in homogeneous sand
description	Vertical ground anchors are commonly used in foundation systems for structures requiring pullout resistance such as transmission towers, structures requiring lateral resistance, such as sheet pile walls. The work described in this research was primarily concerned with the pullout capacity of a vertical ground anchor embedded in dry homogeneous sand. One-laboratory model of anchor test apparatus is fabricated, with dry sand as a medium in sand box to form the homogeneous sand bed. Three models of circular anchors namely 25, 50 and 75 mm diameter and three states of homogeneous sand bed with different unit weights i.e., 15.89, 16.29 and 17.13 kN/mÂ³ , where the relative densities are 29%, 37% and 53% respectively were used in this research. The range of depth/ diameter (D/B) ratios are from 1 to 24 in order to cover shallow and deep anchors with the anchors being subjected to vertical loads under displacement control. A delineation technique is used to define the general failure surface of anchor in the soil mass during pullout. From the test, results show that the behavior and general failure surface of vertical ground anchor in dry homogeneous sand are similar to those reported by previous studies. The predicted formulae of pullout capacity for shallow and deep anchors in dry homogeneous sand are developed using semi-empirical method i.e., prediction of failure surface from pullout test and analytical method. From the comparison, results show that the predicted formula in similar trend with previous studies and experimental test. Overall, the study provides insights about pullout capacity of vertical ground anchor in homogeneous sand. At end of the research finding, suggestions are given for the further works in future.
format	Thesis
qualification_level	Master's degree
author	Mohd Rafe Abdul Majid
author_facet	Mohd Rafe Abdul Majid
author_sort	Mohd Rafe Abdul Majid
title	Pullout capacity of vertical ground anchor in homogeneous sand
title_short	Pullout capacity of vertical ground anchor in homogeneous sand
title_full	Pullout capacity of vertical ground anchor in homogeneous sand
title_fullStr	Pullout capacity of vertical ground anchor in homogeneous sand
title_full_unstemmed	Pullout capacity of vertical ground anchor in homogeneous sand
title_sort	pullout capacity of vertical ground anchor in homogeneous sand
granting_institution	Universiti Malaysia Sabah
granting_department	School of Engineering and Information Technology
publishDate	2011
url	https://eprints.ums.edu.my/id/eprint/40605/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/40605/2/FULLTEXT.pdf
_version_	1811770536888369152

Pullout capacity of vertical ground anchor in homogeneous sand

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