Soft ground consolidation of a railway yard using wick drains and surcharge fill
Fanyu Zhu, Tiekui Yan, Shabbir Bandukwala
In the proceedings of: GeoOttawa 2017: 70th Canadian Geotechnical Conference; 12th joint with IAH-CNCSession: Field Cases II
ABSTRACT: This paper presents a study of soft ground consolidation using wick drains and surcharge fill in order to reduce the post-construction settlement of a railway yard, including design concept of the ground consolidation, the results of field monitoring, and theoretical analyses of settlement monitoring results. Ground settlements were measured during and after the placement of engineered fill and surcharge fill. Ground settlements estimated using consolidation theories were compared with field measurement data. The rate of ground consolidation observed in the field was more rapid than the theoretical prediction. Using the field measurement data, the coefficient of consolidation, pre-consolidation pressure and undrained shear strength of the weak silty clay deposits are back-calculated and compared with results from field and laboratory testing.
RÉSUMÉ: Cet article présente une étude de la consolidation du sol doux à l'aide de drains de mèche et de surcoût pour réduire le règlement post-construction d'un chantier ferroviaire, y compris le concept de conception de la consolidation au sol, les résultats du suivi sur le terrain et les analyses théoriques des résultats de la surveillance des règlements. . Les établissements au sol ont été mesurés pendant et après le placement du remplissage par remplissage et de supplément. Les établissements au sol estimés à l'aide des théories de consolidation ont été comparés aux données de mesure sur le terrain. Le taux de consolidation au sol observé sur le terrain était plus rapide que la prédiction théorique. En utilisant les données de mesure de terrain, le coefficient de consolidation, la pression de pré-consolidation et la résistance au cisaillement non drainée des dépôts faibles d'argile siltée sont calculés en retour et comparés aux résultats des essais sur le terrain et en laboratoire.
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Fanyu Zhu; Tiekui Yan; Shabbir Bandukwala (2017) Soft ground consolidation of a railway yard using wick drains and surcharge fill in GEO2017. Ottawa, Ontario: Canadian Geotechnical Society.
@article{geo2017Paper343,
author = Fanyu Zhu; Tiekui Yan; Shabbir Bandukwala,
title = Soft ground consolidation of a railway yard using wick drains and surcharge fill,
year = 2017
}
title = Soft ground consolidation of a railway yard using wick drains and surcharge fill,
year = 2017
}