A subgrade reaction solution for piles to stabilise landslides
- 1 February 2011
- journal article
- Published by Thomas Telford Ltd. in Géotechnique
- Vol. 61 (2), 143-151
- https://doi.org/10.1680/geot.9.p.026
Abstract
This paper reports a subgrade reaction solution for piles used to stabilise landslides where the sliding layer laterally moves with a displacement decreasing linearly with depth. The developed subgrade reaction solution can deal with the case in which pile segments in both sliding and stable layers are not flexible, and can also calculate the pile response under the additional resistance required to stabilise the landslide. Transforming coordinate systems, the conventional solution can be obtained from the developed subgrade reaction solution for the case in which the movement of the sliding layer is uniform with depth. Two case studies indicate that the pile response, especially the maximum bending moment, calculated by using the developed subgrade reaction solution, was consistent with the measurements. The movement gradient of the sliding layer had a significant influence on the response of stabilising piles, and it usually increased the maximum bending moment of the pile segment in the stable layer. S... La présente communication décrit sur une solution de réaction pour les pieux utilisés afin de stabiliser des glissements de terrain dont la couche glissante se déplace latéralement, et le déplacement diminue sur un plan linéaire en fonction de la profondeur. La solution de réaction développée peut être appliquée dans des applications oò des segments de pieux, dans les couches glissante et stable, ne sont pas flexibles, et permet de calculer la réaction des pieux sous l'effet de la résistance supplémentaire nécessaire pour stabiliser le glissement de terrain. En transformant des systèmes de coordonnées, on peut obtenir la solution conventionnelle sur la base de la solution de réaction développée, pour les applications dans lesquelles le mouvement de la couche glissante est uniforme relativement à la profondeur. Deux études de cas indiquent que la réaction du pieu, en particulier le moment de flexion maximum, calculé en utilisant la solution de réaction ainsi développée, est en accord avec les mesures. Le g...Keywords
This publication has 10 references indexed in Scilit:
- Monitoring and analysis of the bending behaviour of discrete piles used to stabilise a railway embankmentGéotechnique, 2007
- Response of flexible piles under laterally linear movement of the sliding layer in landslidesCanadian Geotechnical Journal, 2003
- Piles Subjected to Lateral Soil MovementsJournal of Geotechnical and Geoenvironmental Engineering, 1997
- ANALYSIS OF PILES USED FOR SLOPE STABILIZATIONInternational Journal for Numerical and Analytical Methods in Geomechanics, 1996
- Design of reinforcing piles to increase slope stabilityCanadian Geotechnical Journal, 1995
- Analysis on Piles for Landslide Control under Considerlation to Displacement of Sliding MassLandslides, 1987
- The response of flexible piles to lateral loadingGéotechnique, 1981
- Design Method for the Stability Analysis of the Slope with Landing PierSoils and Foundations, 1979
- The Behaviour of Piles for Preventing LandslideSoils and Foundations, 1976
- Lateral Resistance of Piles in Cohesive SoilsJournal of the Soil Mechanics and Foundations Division, 1964