| 边界单元法在粘弹性参数位移反馈分析中的应用 |
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| 引用本文： | 沈家荫,林炳仕. 边界单元法在粘弹性参数位移反馈分析中的应用[J]. 河海大学学报(自然科学版), 1990, 0(5) |
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| 作者姓名： | 沈家荫 林炳仕 |
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| 作者单位： | 水利水电科学研究所，水利水电科学研究所 |
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| 摘 要： | 本文提出由位移观测资料反馈分析粘弹性模型参数的边界元法.文中以鲍埃丁-汤姆生(PT)模型为例,介绍了求解的具体步骤,给出了算例,并将其结果与理论解作了比较.算例分析表明,PT粘弹性模型能较好地用于实际工程,特别是围岩较均匀的地下洞室;边界元法比解析法通用性强,比有限元法更能适用于地下洞室结构,特别是不规则形状的洞室,且简单明了,具有较高的计算精度,是位移反馈分析求粘弹性参数的有效方法.
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| 关 键 词： | 反馈分析 粘弹性模型 位移观测 边界单元法 |
Application of BEM in Feedbac Analysis of Viscoelastic Model Parameters by Displacement Measurement |
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| Shen Jiayin Lin Binshi. Application of BEM in Feedbac Analysis of Viscoelastic Model Parameters by Displacement Measurement[J]. Journal of Hohai University (Natural Sciences ), 1990, 0(5) |
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| Authors: | Shen Jiayin Lin Binshi |
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| Abstract: | The BEM for feedback analysis of viscoelastic model parameters by displacement measurement is presented in this paper. Using Poyting-Thomson model as an example, the authers discribe a specific procedure of finding the solution. The calculation examples are worked out and the results are compared with the theoretical ones. Calculations and analyses shown that this method can be used to solve practical engineering problems and can particularly be used for underground openings with homogeneous surrounding rock. This method is simple, highly accurate, and efficient. |
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| Keywords: | feedback analysis viscoelastic model displacement measurement boundary element method |
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