标题：Research on a Calculation Method and Three-Dimensional Simulation of a High-Filled Embankment Rheological Settlement
作者：Wang, Zhi-Chao ;Kuang, Du-Min ;Zhao, Tao ;Luo, Ying-She ;Wang, Wei-Guo
作者机构：[Wang, Zhi-Chao ;Kuang, Du-Min ;Wang, Wei-Guo ] Hunan Key Laboratory of Geomechanics and Engineering Safety, Xiangtan Univ., Xiangtan; 411105, China;[ 更多
会议名称：4th Geo-China International Conference: Behavior of Geomaterials and Foundations for Civil Infrastructure Applications, Geo-China 2016
会议日期：July 25, 2016 - July 27, 2016
来源：Geotechnical Special Publication
摘要：To describe the over-consolidation, dilatancy, strain softening, and time-dependent behavior of subgrade compacted clay inside a high-filled embankment during layered filling process, an elastic-viscoplastic constitutive model based on sub-loading yield surface was adopted to analyze the construction and post-construction settlements of high-filled embankment. Illustrated by the case of the dam-like embankment of Lanhai highway between the pile numbers from K50+650 to K50+860, the rheological settlement performance of the high-filled embankment was investigated emphatically on the condition of complex three-dimension boundary by using the proposed model. These factors such as backfilling method, backfilling speed and the over-consolidation stress history of backfilling clay were simulated to consider the influence on the rheological settlement of high-filled embankment. The settlement prediction result of the proposed model is in good agreement with data of onsite settlement observation. This shows that the proposed model is suitable for analyzing the long-term settlement of high-filled embankment.