工程地质学报2011，Vol.19Issue(2)：168-175,8.
岩石碎屑流运移堆积过程数值模拟
NUMERICAL SIMULATION OF FLOW AND DEPOSITOIN PROCESS OF ROCK AVALANCHE
摘要
Abstract
Large rock slides e and then subsequent broken rock mass avalanches are one of the most destructive geological hazards in the world. Especially, the rock avalanches have intensive run-out ability and destructive power.This paper mainly studies the flow and deposition mechanism of rock landslide induced avalanche. Using a two-dimensional particle flow method, this paper numerically examines the influence of the original height, volume, slope angle and depositing substrate's frictional coefficient and waviness to avalanches. Numerical test results reveal that:(a) the flow and deposition process of a rock avalanche present a discrete and fluid-like nature; (b) increasing in the original height, the volume of rock avalanche and the slope angle would increase the maximum run-out length;and (c) increasing in the frictional coefficient and waviness of the deposition substrate would decrease the maximum run-out length.关键词
岩石碎屑流/二维颗粒离散元方法/运移堆积机理Key words
Rock avalanche/ Two-dimensional particle flow method/ Moving and depositing mechanism分类
天文与地球科学引用本文复制引用
李祥龙,唐辉明,熊承仁,罗红明..岩石碎屑流运移堆积过程数值模拟[J].工程地质学报,2011,19(2):168-175,8.基金项目
中国地质调查局西部地区复杂山体滑坡成灾机理研究项目(1212011014030). （1212011014030）
