岩土工程学报2016，Vol.38Issue(z1)：49-55,7.DOI:10.11779/CJGE2016S1009
基于最大熵原理的土工膜与垫层颗粒间接触力随机状态分析
Stochastic analysis of contact force between geomembrane and particle underlayer based on principle of maximum entropy
摘要
Abstract
In order to quantitatively analyze the reliability of geomembrane surface barrier on rockfill dam, a stochastic method based on the principle of the maximum entropy is employed to analyze the random contact between geomembrane and particle underlayer. The distribution of contact force between geomembrane and particle underlayers with different particle sizes and sharpnesses under different pressures can be obtained theoretically using this method. Two simple cases are also given to show the detailed process of mathematical derivation of this method. The distribution of contact force is exponential according to the proposed method, and the particle size and pressure are the most two important factors to affect the distribution of contact force. The proposed method is then verified by a series of laboratory experiments using the pressure-sensitive film, and it is a reliable tool to measure the contact force at each contact point. The results show that the distribution of contact force from the proposed method is in good agreement with the test data.关键词
土工膜/垫层颗粒/接触力/随机分析Key words
geomembrane/particle underlayer/contact force/stochastic analysis分类
建筑与水利引用本文复制引用
姜晓桢,束一鸣..基于最大熵原理的土工膜与垫层颗粒间接触力随机状态分析[J].岩土工程学报,2016,38(z1):49-55,7.基金项目
国家自然科学基金项目（51379069）；中央级公益性科研院所基本科研业务费专项资金项目 （）
