| 基于DE-FEM隧道反分析可视化平台研究及应用 |
| |
| 引用本文： | 姜谙男,李鹏,唐述林,王军祥.基于DE-FEM隧道反分析可视化平台研究及应用[J].岩土力学,2012,33(8):2507-2512. |
| |
| 作者姓名： | 姜谙男 李鹏 唐述林 王军祥 |
| |
| 作者单位： | 1. 大连海事大学 道路与桥梁研究所，辽宁 大连 116026；2. 中铁21局集团有限公司，兰州 730000 |
| |
| 基金项目： | 国家自然科学基金项目(No.51079010);中央高校基本科研业务费资助项目(No.2011JC012,No.2012TD015) |
| |
| 摘 要： | 针对传统反分析优化容易限于局部最小化以及反分析数据不直观等问题，引进一种新的全局智能优化算法（DE），与应力回映的弹塑性非线性有限元（FEM）相结合，实现围岩弹塑性参数快速识别。基于可视化类库（VTK）对单元应力、应变和节点位移等结果数据进行图像显示，从而实现了隧道施工反分析EEOS高性能可视化平台。在介绍算法原理、程序设计基础上，介绍该系统在某工程的应用情况。应用表明，该平台计算收敛快速、识别精度高、结果直观，为隧道工程反分析提供了科学高效的途径。
|
| 关 键 词： | 地下工程 反分析 差异进化 可视化 应力回映 |
| 收稿时间： | 2011-03-02 |
Development and application of tunnel back analysis visual platform based on DE-FEM |
| |
| JIANG An-nan
,
LI Peng
,
TANG Shu-lin
,
WANG Jun-xiang.Development and application of tunnel back analysis visual platform based on DE-FEM[J].Rock and Soil Mechanics,2012,33(8):2507-2512. |
| |
| Authors: | JIANG An-nan LI Peng TANG Shu-lin WANG Jun-xiang |
| |
| Institution: | 1. Institute of Highway and Bridge Engineering, Dalian Maritime University, Dalian, Liaoning 116026, China; 2. China Railway 21st Bureau Group Co., Ltd., Lanzhou 730000, China |
| |
| Abstract: | Aiming at the conventional back analysis method easily being limited in local optimization and back analysis data being not visualized,a new global intelligent optimization arithmetic–difference evolution(DE) is introduced and combined with stress return mapping nonlinear elastoplastic finite element method(FEM),realizing rapid elastoplastic parameters identification of surrounding rock.Displaying the element stress,element strain and node displacement by image based on visual class library,the visual platform with high performance of tunnel construction back analysis has been realized.After the introduction of arithmetic theory and program design,the engineering application of the platform is also introduced.The application displays that the platform has high computing precision and has visualized computing result,which provides scientific and high effect mean for tunnel back analysis. |
| |
| Keywords: | underground engineering back analysis difference evolution visualization stress return mapping |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
|
