作　　者： ; ; ;

机构地区： 河南工业大学土木建筑学院

出　　处： 《河南工业大学学报（自然科学版）》 2006年第2期10-12,16,共4页

摘　　要： 采用离散单元法(DEM)建立了一种筒仓缩尺模型,该缩尺模型能够提供计算原型筒仓所需的重力场.并模拟了该筒仓缩尺模型的静态侧压力,得到模型筒仓的静态侧压力与原型筒仓的Janssen公式计算值相符合的结论,并通过对该模型筒仓卸料过程的模拟分析,得到了筒仓动态侧压力变化趋势和超压系数的范围. One kind of silo scale model which based on DEM was proposed, this scale model can provide the gravitational field which is needed in the prototype silo＇ s computation of lateral pressure. The static lateral pressure of the silo scale model was simulated, the conclusion that the static lateral pressure of the silo scale model accord with the calculated value of Janssen of the prototype silo was obtained, And through the simulating analysis of silo model in the discharging process, the change tendency of the dynamic lateral pressure and the scope of overpressure coefficient of silo was obtained.

关 键 词： 筒仓缩尺模型 静态侧压力 动态侧压力

领　　域： [建筑科学]