| 邓肯-张模型参数敏感性分析 |
| |
| 引用本文： | 尹蓉蓉,朱合华.邓肯-张模型参数敏感性分析[J].地下空间与工程学报,2004,24(4):434-437. |
| |
| 作者姓名： | 尹蓉蓉 朱合华 |
| |
| 作者单位： | 同济大学地下建筑与工程系,上海,200092;同济大学地下建筑与工程系,上海,200092 |
| |
| 摘 要： | 在岩土介质非线性弹性模型的反演分析中,采用邓肯-张模型,计算卸载时采用卸载模型,这一模型中与弹性模量和泊松比有关的参数有8个。如果将这8个参数都进行反演,计算工作量太大,也没有必要,因此文中对这些参数进行敏感性分析,通过计算得出:参数(?)、Rf、K、c相对来讲敏感性较强,而参数F、n、G、d相对来讲敏感性较弱。
|
| 关 键 词： | 邓肯-张模型 卸载模型 敏感性 |
| 文章编号： | 1001-831X(2004)04-0434-04 |
| 修稿时间： | 2004年4月11日 |
Analysis on Parameters Sensitivity of Duncan-Chang Model |
| |
| YIN Rong-rong et al.Analysis on Parameters Sensitivity of Duncan-Chang Model[J].Chinese Journal of Underground Space and Engineering,2004,24(4):434-437. |
| |
| Authors: | YIN Rong-rong |
| |
| Affiliation: | YIN Rong-rong et al |
| |
| Abstract: | Duncan-Chang model is usually employed in back-analysis for nonlinear elastic model in geo-technical engineering . When the situation of loading and unloading together is analyzed, there are eight parameters related to the modulus elasticity and Poisson' s ratio. If these eight parameters are back analyzed at the same time, the working capacity of calculation will be enormous, and it is not necessary to do so. Therefore, in this paper the sensitivity of these parameters are analyzed. After calculation, it is concluded that the parameters, , , have high sensitivity, but the sensitivity of parameters,, , is lower. |
| |
| Keywords: | Duncan-Chang model unloading model parameter sensibility |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
