水平振动荷载下颗粒运动的响应分析  

Response Analysis of Granular Material Subjected to Horizontal Vibration Load

作　　者：蒋红英[1] 鲁进步[1] 慕青松[2] 

机构地区：[1]西京学院工程技术系,西安710123 [2]兰州大学土木工程与力学学院,兰州730000

出　　处：《桂林理工大学学报》2012年第1期68-71,共4页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(11072095);陕西省科技计划(工业攻关)项目(2010K07-28)

摘　　要：基于二维振动试验,通过检测小颗粒从大颗粒之间孔隙中下沉的坚果效应,研究了在水平振动荷载下砂石层中颗粒位移的动力响应情况。结果表明:散体材料垫层的耗散性能与颗粒位移量有关,颗粒位移动力响应的关键在于激振力大小及颗粒堆中剪阻强度的强弱。Based on the two-dimensional vibration test, the dynamic response of granules displacement in the gravel layer is researched, in the case of the level vibration loads by detecting the nuts effect of small granules sinking through the pores between large granules. The findings indicate that energy dissipation properties of the granular material cushion are related to particle displacement, and the key of the dynamic response of particle displacement is the vibrating force and the shear resistance in the granules heap.

关 键 词：砂石堆试验 动荷载 耗散 理论模型 

分 类 号：TU502[建筑科学—建筑技术科学] TU411.8