岩土力学2009，Vol.30Issue(z2)：528-531,4.
土钉墙开挖性状的有限元分析
Finite element analysis of behaviors of soil-nailing wall
叶俊能 1王立峰2
作者信息
- 1. 宁波市轨道交通工程建设指挥部,宁波,315012
- 2. 浙江科技学院,土木系,杭州,310012
- 折叠
摘要
Abstract
Soil-nailing walls are main support structures in silty and clay soils. Calculated modes interacted between soils, shot crete layers and soil nail are set up on the basis of ABAQUS FEM software by employing soil constitutive model of Mohr-Coulomb and compact pattern of small slip. Distribution patterns and regularities of horizontal displacements of soils and shotcrete layers, shotcrete layer pressures and axial forces are explored. The results show the maximum value of soil displacements is at or near top of walls. Horizontal displacement of pit bottom decreases from pit base to middle pit, and trends to be a fixed value gradually. Axial forces reach maximum in the middle of the nails, and shotcrete layer pressure is much smaller than that of axial nail value. The pressures of the shotcrete layers of soil-nailing walls increase with depth, reach the maximum values, and then decrease afterward. The pressure is added to shotcrete layers with each excavation, and the position of the maximum value moves downward gradually.关键词
土钉墙/面层/位移Key words
soil-nailing wall/ displacement分类
建筑与水利引用本文复制引用
叶俊能,王立峰..土钉墙开挖性状的有限元分析[J].岩土力学,2009,30(z2):528-531,4.
