摘要
为探讨邓肯E-ν模型和E-B模型的差异,首先利用糯扎渡堆石料的两种模型参数计算各自模型所反映的泊松比,并进行了比较分析;然后对两种模型自身理论公式所反映的泊松比的差异进行分析;最后,以261.5 m高的糯扎渡心墙坝为例,进行了有限元计算,研究两种模型计算得到的坝体内不同位置处的应力水平、弹性模量和泊松比的差异,进一步认识了两种模型的差异。
For investigation of the difference between Duncan＇ s E-ν and E-B models, the parameters of the two models for roekfill of Nuozadu Dam were used for calculation of different Poisson＇s ratios reflected by the two models. Then, the difference between the Poisson＇ s ratios reflected by the theoretical formulas of the two models was analyzed. Finally, finite element analysis was perfortrmed of the Nuozadu core rockfill dam of 261.5m in height. The stress level and Young＇ s modulus at different locations of the dam body and the difference between Poisson＇ s ratios calculated by the two models were studied, and the differences between the two models were further investigated.
出处
《水利水电科技进展》
CSCD
北大核心
2008年第1期4-7,共4页
Advances in Science and Technology of Water Resources
基金
国家自然科学基金(50579014)
国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合基金(50639050)
