国外用FLAC做反分析的文章

zll820520

mf0329

是2D的，有没有3D的？

chengjia02

学习学习

xbin962

Abstract: A back analysis algorithm was developed and applied to determine the main parameters for tunnel design, elastic modulus (E) and ratio of horizontal to vertical stress (K). It is based on direct search method and constructed using FLAC, a commercial finite difference program. To find the most appropriate back analysis algorithm among the optimisation techniques, three algorithms of direct search techniques were adopted and the results were compared. Results show that univariate method and alternative univariate method can successfully search the optimal parameter values regardless of initial ones, while pattern search method sometimes fail. The developed code was applied to a model to verify the validity and to estimate the efficiency of the algorithm. Verification by theoretical solutions and published results of Gens’ research was successful. Application to a tunnel showed that the proposed system could be successfully applied to real tunnels to determine design parameters.
Keywords: back analysis, optimisation, FLAC, tunnel, alternative univariate method

lovekk

添加一个Jeon 和 yang 用flac做反分析的具体工程应用实例
另外，该反分析方法实现起来并不难，可以参考本版chunhuo420强度折减法的命令流（yc123292进行过讨论）

[ 本帖最后由 lovekk 于 2008-11-10 16:19 编辑 ]

fby_engineer

谢谢了，下下来学习一下

feixiangqin

多谢了，好东西呀。呵呵

无名雨

哈
学习下老外的做法

fx_12m

同享！

at2008

没话说了  收藏先

江苏萧肖

感谢您的上传哦 谢谢哦 哈哈

ouerf

呵呵，下载下来了，有点看不懂！

luishui927

先下载下来，慢慢学习，谢谢楼主~~

lyzhang47

xiexie le xinku le

honghoogeo

挺热闹，下来看看，谢谢。。。

slh2002789

谢谢楼主分享

fanjunwei

看看老外是怎么写文章的！

jxl_888

多谢了，，指点

f127lu

先下下来看看，谢谢了

lq0719

下下来看看