采用颗粒运动和动力学方法分析了在外力作用下混合料离析的根本原因。
Meanwhile, analyses the basic segregation reason under external force with motion and kinematical analysis methods.
研究认为不同的混合料类型，会产生不同的颗粒接触力和接触力矩，产生接触力小和接触力矩大的混合料，施工过程就容易发生离析。
Research result shows that different type can different contact force and contact moment, it may causes liable segregation for smaller contact force and stronger contact moment.
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