水利水电科技进展2012，Vol.32Issue(1)：91-94,4.DOI:10.3880/j.issn.1006-7647.2012.01.021
软土地基上加筋土挡墙变形特征的有限元分析
FEM analysis of deformation characteristics of reinforced retaining walls on soft foundation
王潇宇 1徐超 1吴迪1
作者信息
- 1. 同济大学地下建筑与工程系,上海200092
- 折叠
摘要
Abstract
Generally, the impact of foundation deformation has been not taken into account in the design of the reinforced retaining walls. However, tremendous deformation of the soft foundation may cause their failure. Based on the practice of a reinforced retaining wall, a model for the reinforced retaining wall on the soft foundation is established by means of numerical modeling method. The impact of differential deformation of the soft foundation on the reinforced retaining wall is analyzed. The results show that: (1) the eccentric action of the base pressure of the reinforced retaining wall will lead to the differential settlement of the soft foundation, and thus it results in adverse impact on the wall deformation and the failure of the free face; (2) the deformation of the face of the reinforced retaining wall is mainly caused by the differential settlement of the soft foundation; (3) the settlement curve of the foundation with the reinforced retaining wall is nearly linear, and the largest settlement point is under the face. The parametric analysis also indicates that the Young's modulus and face angle of the foundation soils and the characteristics of the backfill also have great impact on the deformation characteristics of the reinforced retaining wall.关键词
加筋土挡墙/软土地基/不均匀沉降/有限元分析Key words
reinforced retaining wall/ soft foundation/ differential settlement/ FEM analysis分类
建筑与水利引用本文复制引用
王潇宇,徐超,吴迪..软土地基上加筋土挡墙变形特征的有限元分析[J].水利水电科技进展,2012,32(1):91-94,4.
