Integration of creep into a modified hardening soil model for time-dependent analysis of a high rockfill dam

被引：55

作者：

Pramthawee, Pornthap ^{[1
]}

Jongpradist, Pornkasem ^{[1
]}

Sukkarak, Raksiri ^{[1
]}

机构：

[1] King Mongkuts Univ Technol Thonburi, Dept Civil Engn, Fac Engn, 126 PrachaUthit, Bangkok 10140, Thailand

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 91卷

关键词：

Creep model; Concrete face rockfill dam; Finite element method; Hardening soil model; Time-dependent deformation; ONE-DIMENSIONAL COMPRESSION; NUMERICAL-ANALYSIS; VOID RATIO; BEHAVIOR; CONSTRUCTION; SIMULATION; K-0;

D O I：

10.1016/j.compgeo.2017.07.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper proposes an approach to extend a modified hardening soil model into the time-dependent analysis of high rockfill dams. The key feature of the extended model is the integration of a creep model and the double yield surface elasto-plastic model, via modifying the hardening functions. The integrated model is validated by a laboratory multistage creep test. Results from three-dimensional analyses including the without creep and with creep considerations of the Nam Ngum 2 dam have been compared with the in-situ measurements. The prediction of dam deformation can be significantly enhanced by the proposed model. (C) 2017 Elsevier Ltd. All rights reserved.

引用

收藏

页码：104 / 116

页数：13

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