EFFECT OF LONG-TERM STATIC LOAD ON THE L-SHAPED RETAINING WALL INSTALLED WITH THINNED WOODEN PILE AND FIBER OPTIC GEOGRID USING BOTDR METHOD

Suman Manandhar, Kazuyuki Miyazoe, Satoshi Fukuoka, Takenori Hino, Dennes T. Bergado, Tatsuya Koumoto

In the proceedings of: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference

Session: Insitu Testing and Instrumentation II / Essais in situ et instrumentation II

ABSTRACT: In this study, the effect of long-term static load was observed on the pile head together with straining of geogrid using optical fiber carried with an actual vehicle dump truck on the constructed L-shaped retaining wall using BOTDR method. The change in strain measured immediate after the construction was found to be decreased after four months due to stress relaxation on the geogrid. The strain under static live load was checked to a virtual rear portion of the L-shaped retaining wall and at the central portion of the bottom panel width of L-shaped retaining wall. The straining on geogrid is found to be relatively small and can bear the load of the dump truck to some extent.

RÉSUMÉ: L™objectif de cette étude était d™observer l™effet à long terme d™une charge statique sur la tête du pieu en utilisant un camion-benne comme chargement et la déformation du géotextile en utilisant de la fibre optique et la méthode BOTDR (réflectométrie). Il s™avère que la déformation mesurée immédiatement après la construction a diminué après quatre mois en raison de la relaxation des contraintes sur le géotextile. La déformation sous charge statique a été mesurée avec la roue arrière du camion à la position de la portion arrière virtuelle du mur de soutènement et de la position centrale de son panneau de fond. Il se trouve que la déformation du géotextile est relativement faible et est capable de supporter la charge du camion dans une certaine mesure.

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Cite this article:
Suman Manandhar; Kazuyuki Miyazoe; Satoshi Fukuoka; Takenori Hino; Dennes T. Bergado ; Tatsuya Koumoto (2015) EFFECT OF LONG-TERM STATIC LOAD ON THE L-SHAPED RETAINING WALL INSTALLED WITH THINNED WOODEN PILE AND FIBER OPTIC GEOGRID USING BOTDR METHOD in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.

@article{190,author = Suman Manandhar; Kazuyuki Miyazoe; Satoshi Fukuoka; Takenori Hino; Dennes T. Bergado ; Tatsuya Koumoto,title = EFFECT OF LONG-TERM STATIC LOAD ON THE L-SHAPED RETAINING WALL INSTALLED WITH THINNED WOODEN PILE AND FIBER OPTIC GEOGRID USING BOTDR METHOD,year = 2015}