Elucidation of the Dynamic Behavior of Granular soil in Oscillation Fields and its Technological Application

通过试验研究了散体土在振动场中的动力特性。为了探讨颗粒材料的动力学行为与颗粒特性（粒径和堆积密度）及振动条件（频率和振幅）之间的关系，采用电阻法测量了振动过程中颗粒间的切向。结果表明，颗粒间切向不仅与振动加速度有关，而且与颗粒尺寸与振动振幅的比值有关，即使对完全饱和的煤样也可进行电测。

The dynamic behavior of the granular soil in oscillation fields was studied through experiments. The tangency among the particles was measured by the electric resistance of coal particle specimens during oscillation to discuss the relationship among dynamic behavior of granular materials, the properties of particles(size and packing density) and the vibrating conditions(frequency and amplitude). It has been made clear that the inter-particle tangency depends not only on the acceleration of oscillation but also on the ratio of the particle size to the oscillation amplitude and that the electric measurement was available even to the coal specimen which was perfectly saturated with water.