Abstract
ABSTRACTThis paper presents the analytical methods of slope-stabilising piles using the three-dimensional (3-D) finite element (FE) analysis with the strength reduction method (SRM). This 3-D FE model is employed to overcome the limitations observed in two-dimensional (2-D) FE analysis. The solutions obtained from 3-D FE analyses are verified to be less conservative in this paper. The 3-D analysis is considered to be of particular importance to pile-slope problems. The soil that flows between piles cannot be taken account properly in the 2-D FE analysis. The method adopted in this paper can avoid the assumption of soil movement and the pressure distribution along the piles subjected to soil movement. The numerical analysis employs the Mohr–Coulomb failure criterion with the strength reduction technique for soil and an elastic member for piles. The spacing effect of the pile is considered in the 3-D model, the S/D (S: centre to centre, D: diameter of pile) ratio, equal to 4.0, is found to be equivalent to the single pile stabilisation. The middle portion of the slope is identified as the optimal location to place the piles. The proper length of the pile, which can be used to stabilise the slope, is also examined using 3-D FE analyses. It is concluded that L/H greater or equal 0.70 is recommended (L: pile length, H: slope height). The numerical analyses are conducted based on a coupled analysis, which simultaneously considers both the slope stability and the pile response. The failure mechanisms of the pile-slope system subjected to the pile locations, pile head conditions and pile length are each discussed. The contact pressure, shear force and moment along the piles are presented to illustrate the pile stabilising mechanism herein.
Full Text
Topics from this Paper
Finite Element Analysis
Pile Length
Pile Head Conditions
Finite Element
Strength Reduction Method
+ Show 5 more
Create a personalized feed of these topics
Get StartedTalk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Similar Papers
Materials and Structures
Jul 1, 2009
Transportation Geotechnics
Nov 1, 2022
Applied Mechanics and Materials
Sep 1, 2011
International Journal of Geomechanics
Oct 1, 2015
Finite Elements in Analysis and Design
Nov 1, 1997
Materials Today: Proceedings
Jun 1, 2023
Mar 29, 2012
MATERIALS TRANSACTIONS
Dec 1, 2010
Journal of Rock Mechanics and Geotechnical Engineering
Aug 1, 2022
International Journal of Civil Engineering
Jan 14, 2020
Canadian Geotechnical Journal
Jun 1, 2015
Journal of Orthopaedic Research
May 1, 2005
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
Jan 2, 2018
Mar 25, 2014
Geomechanics and Geoengineering
Geomechanics and Geoengineering
Nov 27, 2023
Geomechanics and Geoengineering
Nov 25, 2023
Geomechanics and Geoengineering
Oct 12, 2023
Geomechanics and Geoengineering
Sep 17, 2023
Geomechanics and Geoengineering
Sep 16, 2023
Geomechanics and Geoengineering
Sep 11, 2023
Geomechanics and Geoengineering
Sep 1, 2023
Geomechanics and Geoengineering
Sep 1, 2023
Geomechanics and Geoengineering
Aug 4, 2023
Geomechanics and Geoengineering
Jul 27, 2023