摘要
首次提出了滑坡岩体高速碰撞的模型实验方法。通过实验,研究了滑体碰撞解体后不同速度段岩体体积的分布规律。结果表明,加速块体所占比例基本上与滑体体积及碰撞速度无关,加速块体体积大约为碰撞前滑体总体积的20％,但个别块体获得的加速效应与滑坡体积及碰撞速度有明显的正相关关系。运用实验成果,分析了头寨沟大型岩质高速滑坡形成远程高速的机理。
The method of model experiment for highspeed collision of landslide rock masses is presented for the first
time. By the experiment,the distribution of volume of landslide rock masses with different speed ranges after rock
mass disintegration due to collision is researched. Result shows that the rate of the accelerated masses is basically
not related to the volume of slided rock masses and the speed of their collision, and is about 20% of total volume of
the slided rock masses; but the acceleration effect of individual slided messes has obviously positive corretation with
the two factors mentioned above. Based on the experimental results, the mechanism of the highspeed and far-ran-
ging landslide in Touzhai Gully is analyzed.
出处
《自然灾害学报》
CSCD
北大核心
2003年第3期99-103,共5页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(49872087)
