INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD

Micropiles are small diameter, cast in – place or grouted piles with steel pipes of (50 to 300 mm) diameters and driven by boring machine. Despite their small wall thickness, high bearing capacity of micropiles provides both axial and pullout resistance.nThis paper is directed to study the behavior...

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Main Authors: Mohammed Y. Fattah, Yousif J. Al –Shakarchi, Yasser M. Kadhim
Format: Article
Language:English
Published: University of Baghdad 2010-09-01
Series:Journal of Engineering
Online Access:https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2641
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author Mohammed Y. Fattah
Yousif J. Al –Shakarchi
Yasser M. Kadhim
author_facet Mohammed Y. Fattah
Yousif J. Al –Shakarchi
Yasser M. Kadhim
author_sort Mohammed Y. Fattah
collection DOAJ
description Micropiles are small diameter, cast in – place or grouted piles with steel pipes of (50 to 300 mm) diameters and driven by boring machine. Despite their small wall thickness, high bearing capacity of micropiles provides both axial and pullout resistance.nThis paper is directed to study the behavior of micropiles under static and dynamic loading conditions using the finite element method. The program OpenSees is used in the analysis, it is open – source program, provides information about the software architecture, access to the source code, and the development process. The program is based on the basic commands, which are written in Tcl (pronounced, "tickle"; tool command language). A model for groups of laterally loaded pipe piles in sand was adopted to study the effect of defects on their lateral performance. The geometric arrangement consisted of group series of 2, 4 and 6 equally spaced piles. Eight node brick elements are used to model the pile and the surrounding soil. It was concluded that the deflection of laterally loaded piles decreases when inserting steel micropiles beside the defect pile at two opposite directions. The increase in the group deflection is greater when the defected pile is modeled in the front row.
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spelling doaj.art-9aa65dafa9e44839988cfc9bdcca8c142024-03-10T09:51:52ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392010-09-01160310.31026/j.eng.2010.03.02INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHODMohammed Y. FattahYousif J. Al –ShakarchiYasser M. Kadhim Micropiles are small diameter, cast in – place or grouted piles with steel pipes of (50 to 300 mm) diameters and driven by boring machine. Despite their small wall thickness, high bearing capacity of micropiles provides both axial and pullout resistance.nThis paper is directed to study the behavior of micropiles under static and dynamic loading conditions using the finite element method. The program OpenSees is used in the analysis, it is open – source program, provides information about the software architecture, access to the source code, and the development process. The program is based on the basic commands, which are written in Tcl (pronounced, "tickle"; tool command language). A model for groups of laterally loaded pipe piles in sand was adopted to study the effect of defects on their lateral performance. The geometric arrangement consisted of group series of 2, 4 and 6 equally spaced piles. Eight node brick elements are used to model the pile and the surrounding soil. It was concluded that the deflection of laterally loaded piles decreases when inserting steel micropiles beside the defect pile at two opposite directions. The increase in the group deflection is greater when the defected pile is modeled in the front row. https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2641
spellingShingle Mohammed Y. Fattah
Yousif J. Al –Shakarchi
Yasser M. Kadhim
INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
Journal of Engineering
title INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
title_full INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
title_fullStr INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
title_full_unstemmed INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
title_short INVESTIGATION ON THE USE OF MICROPILES FOR SUBSTITUTION OF DEFECTED PILES BY THE FINITE ELEMENT METHOD
title_sort investigation on the use of micropiles for substitution of defected piles by the finite element method
url https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2641
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AT yousifjalshakarchi investigationontheuseofmicropilesforsubstitutionofdefectedpilesbythefiniteelementmethod
AT yassermkadhim investigationontheuseofmicropilesforsubstitutionofdefectedpilesbythefiniteelementmethod