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| 虚拟单元法求解渗流流量 | |
| 引用本文： | 李守德,朱岳明,程德虎.虚拟单元法求解渗流流量[J].岩土力学,2009,30(1):27-32. |
| 作者姓名： | 李守德 朱岳明 程德虎 |
| 作者单位： | 1. 河海大学,岩土工程水利部重点实验室,南京,210098;河海大学,岩土工程科学研究所,南京,210098 2. 河海大学,水电学院,南京,210098 3. 南水北调中线干线工程建设管理局,北京,100053 |
| 基金项目： | 中国-奥地利科技合作项目，国家重点基础研究发展计划(973计划) |
| 摘 要： | 提出了计算渗流场流量的虚拟单元法，推导了虚拟单元法有限元方程，并探讨了虚拟单元法的有限元实现方法，建立了虚拟单元法求解渗流流量的理论和方法体系。二维径向渗流和平底坝基算例比较分析表明，虚拟单元法具有计算精度高及有限元实现简单并容易编写通用程序等优点。虚拟单元法与中线法计算流量具有相同的精度，但在应用上虚拟单元法有一定优势。 |
| 关 键 词： | 渗流 流量计算 虚拟单元法 中线法 |
| 收稿时间： | 2007-06-15 |
Virtual element method for seepage discharge calculation |
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| LI Shou-de,ZHU Yue-ming,CHENG De-hu.Virtual element method for seepage discharge calculation[J].Rock and Soil Mechanics,2009,30(1):27-32. | |
| Authors: | LI Shou-de ZHU Yue-ming CHENG De-hu |
| Institution: | 1.Key Laboratory for Geotechnical Engineering of Ministry of Water Resources, Hohai University, Nanjing 210098, China; 2. Research Institute, of Geotechnical Engineering, Hohai University, Nanjing 21098, China; 3. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;4. Construction and Administration Bureau of South-to-North Water Transter Middle Route Project, Beijing 100053, China |
| Abstract: | Virtual element method is put forward for seepage discharge calculation. The equations of finite element method about virtual element are derived; and then the finite element method disposal techniques are discussed; so that the theoretical system and application method can be well established. Based on the analysis of calculation examples of centripetal seepage problem and flat-bottomed dam foundation seepage, it is shown that the discharge calculation with virtual element method will get a high precision. Virtual element method is endowed with unique superiority in the aspects of finite element method application. |
| Keywords: | seepage discharge calculation virtual element method midline method |
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