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依据落石经过计算区间时的运动状态,将计算区间分为7类。在计算区间内,按飞行、滚动和碰撞3种模式划分运动段进行计算,并且明确了落石在3种运动模式之间的转换条件。在计算时,首先根据坡表特征划分计算区间;然后依次计算落石在每个计算区间的运动路径,并且同时判断计算区间的类型;最后得到落石运动路径。通过假定落石运动路径计算中的关键参数服从均匀分布,模拟落石运动的随机性。通过一个算例检验算法的正确性,并在算例中展示了7类计算区间和20次随机计算结果。本文为落石的治理工程设计中计算落石可能的运动路径提供一种新算法。
According to the rock falling through the calculation of interval when the state of motion, the calculation of interval is divided into seven categories. In the calculation interval, according to the flight, rolling and collision modes are divided into three sections of motion calculation, and clear the rock falling in the three kinds of movement between the conversion conditions. In the calculation, firstly, the calculation interval is divided according to the characteristics of the slope table; then the moving path of the rockfall in each calculation interval is calculated in turn, and the type of the calculation interval is judged at the same time; finally, the rockfalling movement path is obtained. The randomness of the rockfall motion is simulated by assuming that the key parameters in the calculation of the path of rockfall obey uniform distribution. An example is used to verify the correctness of the algorithm. In the example, seven kinds of calculation intervals and 20 random calculations are presented. This paper provides a new algorithm for calculating the possible motion path of rockfall in the engineering design of rockfall control.