|
|||||
|
|
| 有限变形理论的深厚冲积层冻结壁变形特性分析 | |
| 引用本文： | 荣传新,王秀喜,程桦.有限变形理论的深厚冲积层冻结壁变形特性分析[J].西安科技大学学报,2010,30(1). |
| 作者姓名： | 荣传新 王秀喜 程桦 |
| 作者单位： | 1. 安徽理工大学,土木建筑学院,安徽,淮南,232001;中国科学技术大学,近代力学系,安徽,合肥,230026 2. 中国科学技术大学,近代力学系,安徽,合肥,230026 3. 安徽理工大学,土木建筑学院,安徽,淮南,232001 |
| 基金项目： | 安徽省优秀青年科技基金项目 |
| 摘 要： | 冻结壁的变形及其影响因素是冻结凿井工程,特别是深厚冲积层冻结法凿井工程中急需研究解决的技术课题。基于有限变形理论,利用冻土有限变形本构关系及其蠕变参数,对深厚冲积层(超过400m)冻结壁进行了有限元分析,表明冻结壁井帮径向位移在段高内的分布是不均匀的,一般是上下小、中间大,并且冻结壁内部径向位移比井帮径向位移小;得出了冻结壁井帮的最大径向位移与冻结壁厚度、冲积层厚度、开挖段高、开挖段井帮暴露时间和井筒开挖半径关系表达式,并得到了现场实测验证。 |
| 关 键 词： | 岩土力学 深厚冲积层 冻结壁 有限变形 有限元 |
Finite strain analysis on deformation characteristics of frozen soil wall in deep alluvium |
|
| RONG Chuan-xin,WANG Xiu-xi,CHENG Hua.Finite strain analysis on deformation characteristics of frozen soil wall in deep alluvium[J].JOurnal of XI’an University of Science and Technology,2010,30(1). | |
| Authors: | RONG Chuan-xin WANG Xiu-xi CHENG Hua |
| Institution: | RONG Chuan-xin1,2,WANG Xiu-xi2,CHENG Hua1 (1.College of Civil Engineering , Architecture,Anhui University of Science , Technology,Huainan 232001,China,2.Department of Modern Mechanics,University of Science , Technology of China,Hefei 230027,China) |
| Abstract: | FEM analysis of frozen soil wall is performed with ANSYS software in which the finite strain constitutive equation of frozen soil and the parameters of creep in the equation are incorporated.The regularity of the radial displacements on the surface of frozen soil wall and in inner frozen soil wall is revealed.The factors of influencing on the displacement distribution of frozen soil wall are analyzed.A formula is proposed for expressing the relationship of the maximum radial displacement of frozen soil wall... |
| Keywords: | rock and soil mechanics deep alluvium frozen soil wall finite strain finite element method |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |