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| 人工冻土蠕变的数值计算及其模拟 | |
| 引用本文： | 乾增珍,鲁先龙,陈湘生.人工冻土蠕变的数值计算及其模拟[J].中国矿业大学学报,2004,33(3):273-276. |
| 作者姓名： | 乾增珍 鲁先龙 陈湘生 |
| 作者单位： | 1. 中国矿业大学,力学与建筑工程学院,北京,100083 2. 国电电力建设研究所,北京,100055 3. 深圳市地铁总公司,广东,深圳,518000 |
| 摘 要： | 根据人工冻土蠕变特征和本构方程，引入经典弹塑性力学理论，将空间域和时间域进行离散化，提出了以时间增量法为基础的人工冻土有限元数值模拟计算公式应用ANSYS有限元程序分析了一个实例．并将数值模拟结果、解析解和现场实测数据进行对比分析，结果表明运用数值模拟方法可以模拟冻土的蠕变计算，揭示冻结壁变形规律，且具有一定的计算精度，从而为今后人工冻土蠕变计算提供了一种实用方法． |
| 关 键 词： | 人工冻土 蠕变 数值计算 数值模拟 有限单元法 |
| 文章编号： | 1000-1964(2004)03-0273-04 |
| 修稿时间： | 2003年5月13日 |
Numerical Calculation and Simulation for Creep Displacement of Artificially Frozen Soil |
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| QIAN Zeng-zhen,LU Xian-long,CHEN Xiang-sheng.Numerical Calculation and Simulation for Creep Displacement of Artificially Frozen Soil[J].Journal of China University of Mining & Technology,2004,33(3):273-276. | |
| Authors: | QIAN Zeng-zhen LU Xian-long CHEN Xiang-sheng |
| Affiliation: | QIAN Zeng-zhen~1,LU Xian-long~2,CHEN Xiang-sheng~3 |
| Abstract: | Based on the properties of frozen soil and it's constitutive equations the time increment-based equations were obtained by means of discretization of time and spatial domain. A practical example was anlaysized by the program ANSYS. The FEM solutions and it's comparison with analytic results and measured data indicate that numerical analysis by program ANSYS can simulate the creep process of artificial frozen soil, find the deformation law of ice wall and verify the mathematic creep model of frozen soil. Therefore, this method can solve the calculation problems of creep displacement in artificially frozen soil effectively. |
| Keywords: | artificially frozen soil creep numerical simulation program ANSYS FEM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |