正交试验法在颗粒材料堆自组织分析中的应用  

The Application of Orthogonal Tests to the Analysis of Self-Organizing in Granular Pile

作　　者：蒋红英[1] 刘杰[2] 柯志华[1] 沈金生[2] 杨晓强[1] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050 [2]河北工程大学土木工程学院,河北邯郸056038

出　　处：《甘肃科学学报》2008年第3期122-125,共4页Journal of Gansu Sciences

基　　金：甘肃省自然科学基金(071RTZA063);兰州理工大学科研专项基金(SB04200701)

摘　　要：颗粒材料堆具有非均质性、非连续性及随机性等内在的独特性质,从而给研究带来很大困难.颗粒材料堆在承载时,其力学性质与颗粒的大小、排布、堆积高度、表面的粗糙程度以及加载速度都有着密切关系.通过采用室内正交实验,利用自制的设备,研究了堆积高度、粒径和加载速度3个因素在不同水平下对颗粒材料堆自组织现象的影响.A granular pile has the inherent and unique properties of inhomogeneity, discontinuity, randomicity and so on. It is very difficult to study its properties. Under the load,the mechanical properties of the pile is closely related to the size and arrangement of granules, the height of pile, surface roughness and the speed of loading. Based on the lab orthogonal tests, by using self-manufactured press box,we studied the effects of the height pile, the size of granules, and the speed of loading on self-organizing of the granular materials.

关 键 词：自组织 颗粒材料堆 正交试验 

分 类 号：TU444[建筑科学—岩土工程]