| 井筒开挖下非线性冻结壁的应力场和位移场计算 |
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| 引用本文： | 汪仁和,李栋伟,王秀喜.井筒开挖下非线性冻结壁的应力场和位移场计算[J].上海交通大学学报,2005,39(11):1862-1865. |
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| 作者姓名： | 汪仁和 李栋伟 王秀喜 |
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| 作者单位： | 安徽理工大学,土木工程系,淮南,232001;中国科学技术大学,力学和机械工程系,合肥,230026;安徽理工大学,土木工程系,淮南,232001;中国科学技术大学,力学和机械工程系,合肥,230026 |
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| 基金项目： | 安徽省自然科学基金（050440501）,安徽省教育厅自然科学基金（2004kjllo）资助项目. |
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| 摘 要： | 基于冻土力学性能试验获得的冻土应力一应变关系曲线所确定的冻土本构方程，分析人工冻结壁在井筒开挖过程中的力学特性；利用解除应力的概念，考虑冻结壁为非线性材料，推导出冻结壁的应力场和位移场的计算公式．通过对实际工程的计算分析表明，该计算方法可应用于深井冻结壁的设计计算．
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| 关 键 词： | 冻结壁 非线性 本构方程 应力场 位移场 |
| 文章编号： | 1006-2467（2005）11-1862-04 |
| 收稿时间： | 2005-02-16 |
| 修稿时间： | 2005年2月16日 |
Nonlinear Model Calculating Frozen Wall Stress and Displacement Fields in Shaft Excavation |
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| WANG Ren-he,LI Dong-wei,WANG Xiu-xi.Nonlinear Model Calculating Frozen Wall Stress and Displacement Fields in Shaft Excavation[J].Journal of Shanghai Jiaotong University,2005,39(11):1862-1865. |
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| Authors: | WANG Ren-he LI Dong-wei WANG Xiu-xi |
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| Institution: | 1. Dept. of Civil Eng. , Anhui Univ. of Science and Technology, Huainan 232001, China ; 2. Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei 230026 |
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| Abstract: | Based on the frozen soil constitutive equation which is determined from frozen soil stress-strain curve acquired from the mechanical characteristic experiment of frozen soil,the mechanical characteristics of artificial frozen wall in the shaft excavation were analyzed.Using the stress-relieving conception,considering artificial frozen wall as elastic-plastic material,the calculation formula of artificial frozen wall's nonlinear stress and displacement fields was deduced.The calculation result of a project example proves the correctness of the calculation method which is applicable to the calculation in deep artificial frozen wall. |
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| Keywords: | frozen wall nonlinear constitutive equation stress fields displacement fields |
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