Model Test and Numerical Analysis on Long-Term Mechanical Properties of Stepped Reinforced Retaining Wall

作     者：WANG Chengzhi LUAN Maotian ZHU Zeqi 汪承志;栾茂田;朱泽奇

作者机构：School of Civil EngineeringDalian University of TechnologyDalian 116024China School of River and Ocean EngineeringChongqing Jiaotong UniversityChongqing 400074China State Key Laboratory of Geomechanics and Geotechnical EngineeringInstitute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2012年第18卷第1期

页      面：62-68页

核心收录：

学科分类：07[理学] 081401[工学-岩土工程] 08[工学] 070102[理学-计算数学] 0814[工学-土木工程] 0701[理学-数学] 

基　　金：Supported by National Natural Science Foundation of China (No. 50678032 and No. 90715042) Key Project of Ministry of Education of China (No. 210176) 

主　　题：model test geogrid stepped reintbrced retaining wall finite element method visco-elasto-plasticity model 

摘      要：Model tests and numerical analyses of stepped reinforced retaining wall were performed to investigate the effects of rheology of backfill and creep of geogrids on the long-term performance of the *** geogrid tensions,soil pressures,wall deformations and foundation pressure were measured during model construction and loading.A visco-elasto-plastic model and an empirical nonlinear visco-elastic model were utilized to simulate the stresses and deformations of geogrid-reinforced earth-retaining wall under long-term *** comparing test data with numerical results,it is shown that the foundation pressure distribution is nonlinear,and the lateral constraint of geogrids for backfill can cause a redistribution of foundation *** curve of soil pressure is outside convex at each step initially,and it is close to the distribution for the case of vertical wall *** variation trend of geogrid tensions at different heights is ***,the failure mechanism and development mode of potential slip surface in retaining wall are proposed.