|
|||||
|
|
| 数值流形方法对岩土工程开挖卸荷问题的模拟 | |
| 引用本文： | 朱爱军,邓安福,曾祥勇. 数值流形方法对岩土工程开挖卸荷问题的模拟[J]. 岩土力学, 2006, 27(2): 179-183 |
| 作者姓名： | 朱爱军 邓安福 曾祥勇 |
| 作者单位： | 1. 贵州大学 土木建筑工程学院，贵阳 550003；2. 重庆大学 土木工程学院，重庆 400045 |
| 摘 要： | 基于数值流形方法数学覆盖与物理网格的相对独立性，考虑任一时刻体系中真实存在的各平衡力项对体系平衡的作用，提出用数值流形方法模拟岩土工程开挖卸荷的方法。相对于传统数值方法，数值流形方法在模拟开挖时不用计算开挖面上的释放荷载，不用为卸除的材料部分准备专门的单元，简单的数学网格可以适应任意的开挖过程，使其对开挖的模拟更加简便和有效，同时高阶的流形方法对开挖问题具有较高的求解精度。 |
| 关 键 词： | 数值流形方法 数学覆盖 岩土工程 开挖卸荷 |
| 文章编号： | 1000-7598-（2006）02-0179-05 |
| 收稿时间： | 2004-06-24 |
| 修稿时间： | 2004-06-242004-11-10 |
Numerical manifold method for simulation of excavation unloading in geotechnical engineering |
|
| ZHU Ai-jun,DENG An-fu,ZENG Xiang-yong. Numerical manifold method for simulation of excavation unloading in geotechnical engineering[J]. Rock and Soil Mechanics, 2006, 27(2): 179-183 | |
| Authors: | ZHU Ai-jun DENG An-fu ZENG Xiang-yong |
| Affiliation: | 1. College of Civil Engineering and Architecture, Guizhou University, Guiyang 550003, China; 2. College of Civil Engineering, Chongqing University, Chongqing 400045, China |
| Abstract: | Based on the relative independence of mathematical cover and physical grid, and considering the action of truely existent various equilibrant force in system for system balance, a method of simulation for excavation unloading using numerical manifold method in geotechnical engineering is proposed. Compared with the traditional numerical method, the numerical manifold method need not calculate the released load on excavation face, need not prepare special element for unloaded material part; simple mathematic grid can meet the arbitrary course of excavation; so it is more convenient and effective; at the same time, high-order manifold method has better precision for excavation. |
| Keywords: | numerical manifold method mathematical cover geotechnical engineering excavation |
| 本文献已被 CNKI 维普 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》下载全文 | |