Hybrid Method for Analysis and Design of Slope Stabilizing Piles

Kourkoulis, R; Gelagoti, F; Anastasopoulos, I; Gazetas, G

dc.contributor.author	Kourkoulis, R	en
dc.contributor.author	Gelagoti, F	en
dc.contributor.author	Anastasopoulos, I	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T02:02:19Z
dc.date.available	2014-03-01T02:02:19Z
dc.date.issued	2011	en
dc.identifier.issn	10900241	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29303
dc.subject	Field tests	en
dc.subject	Pile groups	en
dc.subject	Simplified method	en
dc.subject	Slope stability	en
dc.subject	Soil-structure interaction	en
dc.subject	Validation against experiments	en
dc.subject.other	Analysis and design	en
dc.subject.other	Analytical techniques	en
dc.subject.other	Computationally efficient	en
dc.subject.other	Degree of conservatism	en
dc.subject.other	Field test	en
dc.subject.other	Finite-element	en
dc.subject.other	Fully-coupled	en
dc.subject.other	Hybrid method	en
dc.subject.other	Lateral capacity	en
dc.subject.other	Non-linear FE	en
dc.subject.other	Parametric analysis	en
dc.subject.other	Pile configuration	en
dc.subject.other	Pile groups	en
dc.subject.other	Resisting forces	en
dc.subject.other	Simplified method	en
dc.subject.other	Slope geometry	en
dc.subject.other	Slope stabilization	en
dc.subject.other	Stabilizing piles	en
dc.subject.other	Theoretical result	en
dc.subject.other	Three-dimensional (3D)	en
dc.subject.other	Design	en
dc.subject.other	Safety factor	en
dc.subject.other	Slope stability	en
dc.subject.other	Three dimensional	en
dc.subject.other	Piles	en
dc.subject.other	computer simulation	en
dc.subject.other	experimental design	en
dc.subject.other	field method	en
dc.subject.other	finite element method	en
dc.subject.other	model validation	en
dc.subject.other	pile group	en
dc.subject.other	slope stability	en
dc.subject.other	soil-structure interaction	en
dc.subject.other	three-dimensional modeling	en
dc.title	Hybrid Method for Analysis and Design of Slope Stabilizing Piles	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)GT.1943-5606.0000546	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000546	en
heal.publicationDate	2011	en
heal.abstract	Piles are extensively used as a means of slope stabilization. Despite the rapid advances in computing and software power, the design of such piles may still include a high degree of conservatism, stemming from the use of simplified, easy-to-apply methodologies. This paper develops a hybrid method for designing slope-stabilizing piles, combining the accuracy of rigorous three-dimensional (3D) finiteelement (FE) simulation with the simplicity of widely accepted analytical techniques. It consists of two steps: (1) evaluation of the lateral resisting force (RF) needed to increase the safety factor of the precarious slope to the desired value, and (2) estimation of the optimum pile configuration that offers the required RF for a prescribed deformation level. The first step utilizes the results of conventional slope-stability analysis. A novel approach is proposed for the second step. This consists of decoupling the slope geometry from the computation of pile lateral capacity, which allows numerical simulation of only a limited region of soil around the piles. A comprehensive validation is presented against published experimental, field, and theoretical results from fully coupled 3D nonlinear FE analyses. The proposed method provides a useful, computationally efficient tool for parametric analyses and design of slope-stabilizing piles. © 2012 American Society of Civil Engineers.	en
heal.journalName	Journal of Geotechnical and Geoenvironmental Engineering	en
dc.identifier.doi	10.1061/(ASCE)GT.1943-5606.0000546	en
dc.identifier.volume	138	en
dc.identifier.issue	1	en
dc.identifier.spage	1	en
dc.identifier.epage	14	en