【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。更多还原

【Abstract】 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.更多还原