Probabilistic analysis of random contact force between geomembrane and granular material
来源期刊：中南大学学报(英文版)2014年第8期
论文作者：JIANG Xiao-zhen(姜晓桢) SHU Yi-ming(束一鸣)
文章页码：3309 - 3315
Key words：geomembrane; granular material; contact force; probability density function
Abstract: A probabilistic method based on principle of maximum entropy was employed to analyze the randomness of contact force between geomembrane and granular material. The contact force distribution is exponential according to the proposed method and the grain size is the most important factor that affects the distribution of contact force. The proposed method is then verified by a series of laboratory experiments using glass beads and cobbles as granular material and a very thin pressure, indicating that film is firstly used in these experiments which give a reliable method to measure the contact force at each contact point.
JIANG Xiao-zhen(姜晓桢)1, 2, SHU Yi-ming(束一鸣)1
(1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;
2. Department of Geotechnical Engineering, Nanjing Hydraulic Research institute, Nanjing 210024, China)
Abstract:A probabilistic method based on principle of maximum entropy was employed to analyze the randomness of contact force between geomembrane and granular material. The contact force distribution is exponential according to the proposed method and the grain size is the most important factor that affects the distribution of contact force. The proposed method is then verified by a series of laboratory experiments using glass beads and cobbles as granular material and a very thin pressure, indicating that film is firstly used in these experiments which give a reliable method to measure the contact force at each contact point.
Key words:geomembrane; granular material; contact force; probability density function
