| 基于FLAC~(3D)强度折减法的三种收敛判据的比较分析 |
| |
| 引用本文： | 王少华,赵宗勇,郭靖,杨金强.基于FLAC~(3D)强度折减法的三种收敛判据的比较分析[J].矿业快报,2011(2). |
| |
| 作者姓名： | 王少华 赵宗勇 郭靖 杨金强 |
| |
| 作者单位： | 1. 三峡大学
2. 三峡库区地质灾害教育部重点实验室 |
| |
| 摘 要： | 运用FLAC3D对一个简单土坡算例进行计算,分别运用目前常用的收敛判据、位移突变和塑性区判据来求得安全系数,这三个判据计算出的结果相近且都与FLAC内置fish语言求解安全系数的答案接近,说明在今后的具体运用中,以塑性区为判据会得到比较保守的安全系数,而采用监测关键点的位移相对比较直观精确,同时基于以上判据,综合考虑其他判据,使各判据在使用中尽量提高精度,这样才会得到比较可靠的结果。
|
| 关 键 词： | FLAC强度折减 安全系数 失稳判据 塑性区 最大不平衡力 特征点位移 |
Three Types Convergences of the Comparative Analysis Based on FLAC~(3D) Strength Reduction Method |
| |
| Wang Shaohua Zhao Zongyong Guo Jing Yang Jinqiang.Three Types Convergences of the Comparative Analysis Based on FLAC~(3D) Strength Reduction Method[J].Express Information of Mining Industry,2011(2). |
| |
| Authors: | Wang Shaohua Zhao Zongyong Guo Jing Yang Jinqiang |
| |
| Affiliation: | Wang Shaohua1 Zhao Zongyong2 Guo Jing2 Yang Jinqiang2 (1.China Three Gorges University,2.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Ministry of Education) |
| |
| Abstract: | FLAC3D was used to analyzed a simple slope,the convergence criterion,displacement mutation criterion and plastic zone criterion which were now commonly used to seek safety factor separately.the calculate results of the three criterias were similar,what,s more,they were close to the tranditional answer of safety factor which was solved by built-in language.It was illustrated that the plastic zone would be more conservative as the criterion of the safety factor,but by monitoring the displacement of key points... |
| |
| Keywords: | FLAC strength reduction Safety factor Failure criterion Plastic zone Maximum unbalanced force Displacement of feature points |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
