@inproceedings{024d319b7beb4340a5d17f2ba06d3288,
title = "Bonding Structured UH Model",
abstract = "Bonding in structured soil limits the relative motion between soil particles as deformation develops with loading. This makes the structured soil behave differently from the reconstituted soil. Based on the unified hardening (UH) model for overconsolidated soils, a new model is proposed to describe the stress-strain relations of structured soil. The new model is developed from the following aspects: (a) a moving normal compression line (MNCL) paralleling to the traditional normal compression line (NCL) in e-lnp plane is proposed by introducing a structure potential parameter to describe soil structure collapse in isotropic compression; (b) a moving critical state line (MCSL) paralleling to the traditional critical state line (CSL) in p−q plane is proposed by introducing a bonding parameter to describe stress ratio evolution influenced by bonding in shear. This parameter is adopted in the dilatancy equation to consider the bonding-dependent dilatancy of structured soil. Both of the above 2 structure parameters have clear physical meanings and can be determined or estimated by conventional tests. It has been analyzed that the proposed model is able to smoothly and continuously reflect the positive/negative dilatancy and strain hardening/softening of structured soil influenced by bonding and its decay.",
keywords = "Bonding, Constitutive model, Moving critical state line, Moving normal compression line, Structured soil",
author = "Zhu, \{En Yang\} and Li, \{Xiao Qiang\} and Yao, \{Yang Ping\}",
note = "Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2018.; 4th GeoShanghai International Conference - Fundamentals of Soil Behaviours, GSIC 2018 ; Conference date: 27-05-2018 Through 30-05-2018",
year = "2018",
doi = "10.1007/978-981-13-0125-4\_24",
language = "英语",
isbn = "9789811301247",
series = "Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours",
publisher = "Springer",
pages = "218--225",
editor = "Annan Zhou and Junliang Tao and Xiaoqiang Gu and Liangbo Hu",
booktitle = "Proceedings of GeoShanghai 2018 International Conference",
address = "德国",
}