圆形工作井的土反力分布特征研究

详细信息

Distribution characteristics of soil back pressure in round working well

摘要: 以一个加劲水泥土圆形工作井的设计实例为基础模型,考虑到加劲水泥土宏观上显示出的正交各向异性,应用正交各向异性三维实体有限元分析技术,对因顶推力引起的土反力分布特征进行了分析。分析表明,土反力分布呈“扁圆形草帽”形态,具体分布特征及分布范围主要受工作井结构各向刚度与土层刚度等因素控制。土反力分布与其影响因素间关系的规律结论对工作井的设计工作有一定的参考价值。
- 加劲水泥土 /
- 圆形工作井 /
- 土反力
Abstract: Taking a designed round reinforced sement soil working well as a basic model,and considering its macroscopically presented orthogonal anisotropy,the technique of orthogonal anisotropy 3D limited element analysis is used to research the distribution characteristics of soil back pressure caused by top thrust force.The study indicated that the soil back pressure distributed as “straw hat”,and concrete distribution characteristics and scope mainly controlled by structural isotropic stiffness of working well and soil stiffness.The summary on the relation between distribution characteristics of soil back pressure and its controlling factors is of significance for working well design.
- reinforced sement soil /
- round working well /
- soil back pressure