LESSONS LEARNED FROM THE NUMERICAL MODELLING OF A RETAINING WALL WITH NON-UNIFORM REINFORCEMENTS
A research program focused on the performance of a full scale test on a wrapped-face retaining wall reinforced by two types of reinforcement materials embedded in sand is presented. To evaluate the complex behavior of such structure, a 3.6 m high retaining wall was constructed and instrumented, then loaded to failure. Plane-strain numerical analysis have been performed using FLAC in order to model the reinforced soil structure taking into account the sequential bottom-up construction of the wall facing, soil, reinforcement and surcharge. This allowed to evaluate whether the measured stress-strain and collapse behavior of the wall can be fitted by the conventional limit-state equilibrium methods or if a more sophisticated method which takes into account the different linear stiffness of the reinforcements, such as the Displacements Method, must be used. To this purpose a new software has been developed and validated to perform reinforced walls stability analysis using different types of reinforcements and complex design scenarios. This research provides guidance to the design of retaining wall with non-uniform reinforcements.
a retaining wall with non-uniform reinforcements numerical modeling Displacements Method full scale instrumented walls
Xiang-Jing HUANG Ze LIU Vicari M
School of Building, South Central University, China Hunan Provincial Communications Planning, Survey School of Building, South Central University,China Technical Cooperation with Subsidiaries.Officine Maccaferri S.P.A.Italy
国际会议
International Symposium on Geoenvironmental Engineering(国际环境岩土工程研讨会
杭州
英文
834-839
2009-09-08（万方平台首次上网日期，不代表论文的发表时间）