岩土力学2011，Vol.32Issue(6)：1795-1800,6.
基于元胞自动机模型的堆积体动力学参数研究
Study of dynamic parameters for talus deposit based on model of cellular automata
摘要
Abstract
As a typical binary medium, talus deposit is made up of weak parent soil, stiff macadam or rock blocks.Cellular automata model is used in evolution of random and discrete elements to simulate the distribution structure and accumulation characteristics;then equivalent wave speed is calculated according to transmission theory of elastic stress wave; then the influence on dynamic parameters of medium distribution and rigidity are studied.The results show that the wave speed in talus is controlled by parent medium and fill medium; the more faint the parent medium is.the more slow SV speed is; it exhibit as logarithm relation.The more content of rock filling can make more high wave speed; the speed and content of rock filling takes as logarithm relation, while there's little correlation between amplitude ratio and rock filling; it primary depends on distribution construction.Due to the inhomogeneous density of talus, wave speed is closely related with incident wave frequency; bigh frequency makes high wave speed and low frequency makes low wave speed.With this method, the wave mechanics can be better considered; dynamic parameters of complex medium can be effectively achieved; and shortage ofindoor and field tests can be greatly improved.关键词
动力学/动参数/元胞自动机/堆积体/地震波Key words
dynamics/ dynamic parameters/ cellular automata/ talus deposit/ seismic wave分类
建筑与水利引用本文复制引用
石崇,徐卫亚,张玉,李德亮,刘和..基于元胞自动机模型的堆积体动力学参数研究[J].岩土力学,2011,32(6):1795-1800,6.基金项目
国家自然科学基金(No.50911130366) （No.50911130366）
国家科技支撑计划(No.2009550212) （No.2009550212）
新教师基金(No.20090094120017) （No.20090094120017）
中央高校基本科研业务费专项资助(2010年). （2010年）
