茨马绒沟泥石流运动及堆积特征  

MOVEMENT AND ACCUMULATION CHARACTERISTICS OF DEBRIS FLOWS IN CIMARONG VALLEY

作　　者：胡耀飞[1] 宋胜武[1] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,成都610072

出　　处：《地质灾害与环境保护》2013年第2期16-20,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：在回顾泥石流研究的基础上,对茨马绒变坡度沟泥石流进行调查研究。结果表明,该泥石流沟泥石流流速受沟床坡度控制明显,速度快慢交替,呈现出流通区与堆积区在时空上相互转化,在流通区内形成多个次级堆积区,从而在沟口一次冲出物堆积较少。针对这一特点,提出相应的变坡度沟泥石流的综合工程措施。The debris flows in Cimarong Valley of variable gradients were investigated based on reviewing debris flow studies. The results show that the debris flow there is controlled by slope gradient, with circulation zones and accumulation zones alter- nating, forming a couple of secondary accumulation areas which results in accumulation in small amounts at the exit. In view of this feature, integrated engineering measures are proposed for debris flow gullies of varying gradients.

关 键 词：变坡度沟 泥石流 流通区 堆积区 工程措施 

分 类 号：P642.23[天文地球—工程地质学]