综合考虑堆石体复杂特性的颗粒流高精度高效率模拟新方法

A New Method for Simulating the Strength and Deformation Behavior of Rockfill with High Efficiency and Accuracy, Considering the Complicated Physical Characteristics

当前颗粒流方法模拟堆石体时面临精度和效率的问题。为弥补这一不足之处,基于PFC2D 5.0程序建立了一种新的高精度高效率堆石体模拟方法,利用该方法对糯扎渡I区堆石料的压缩试验进行模拟,模拟结果与物理试验结果十分接近。

Problems of imprecision and inefficiency are usually found in the current research about simulating the macro mechanical behavior of rockfill. To overcome this disadvantage, a new method with high efficiency and accuracy through PFC2D 5.0 program is introduced in this paper. Then this method is adopted to simulate the compressive test of rockfill from Nuo Zhadu Rockfill Dam. The results of numerical model agree well with those of laboratory test.