Performance of geosynthetic-reinforced granular piles in soft clays: Model tests and numerical analysis |
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Institution: | 1. Research Associate in University of Bristol, United Kingdom;2. Professor in Bogazici University, Turkey;1. Edinburgh Napier University (formerly University of Cantabria), School of Engineering and the Built Environment, Edinburgh Napier University, 10 Colinton Road, Edinburgh EH10 5DT, UK;2. Group of Geotechnical Engineering, Department of Ground Engineering and Materials Science, University of Cantabria, Avda. de Los Castros, s/n, 39005 Santander, Spain;1. Key Laboratory of High-Speed Railway Engineering (MOE), School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China;2. Guangxi Communications Investment Group Co. Ltd, Nanning, 530022, China;3. GeoEngineering Centre at Queen''s-RMC, Dept. of Civil Engineering, Queen''s Univ, Kingston, ON, K7L 3N6, Canada;4. Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, College of Civil Engineering and Architecture, Guangxi University, Nanning, 530004, China;1. Civil Engineering Department, Faculty of Engineering, University of Guilan, Persian Gulf Highway, P.B: 41996-13776, Rasht, Iran;2. Civil Engineering Department, Faculty of Technology and Engineering (Eastern Guilan), P.B: 44918-98566, Rudsar, Iran |
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Abstract: | The laboratory model tests and numerical analyses have been performed on reinforced granular piles installed in very soft clay. The granular piles were reinforced with geosynthetic in the form of vertical encasement, horizontal strips and combined vertical-horizontal reinforcement. The short term-displacement control model tests were carried out either only a granular pile loaded or with an entire area loaded. The laboratory results in the form of vertical load intensity-settlement behaviour were compared with that obtained from FEM software, PLAXIS 3D. The results indicated significant improvement in ultimate load intensity and stiffness of treated ground due to inclusion of geosynthetic. |
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Keywords: | Stone columns Geotextile Geogrid Plaxis 3D Soft clays Numerical analysis |
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