摘要
针对2012年7月9日俄瓜热十多沟流域形成的较大规模的泥石流,从泥石流的形成角度,对该流域的地形分区特征、冲淤特征、物源条件及堵河条件进行了研究,分析了泥石流的成因机制及引发因素,并根据泥石流的活动特征参数提出以拦为主的5坝1坊2堤工程治理方案。该方案可达到有效的拦砂、固床、压坡目的,将泥石流灾害防治与公路规划建设相结合,其减灾防灾效益非常显著。
A rather large-scale debris flow caused by rainstorm broke out in Egua-reshiduo Valley watershed in July 9,2012. The paper clarifies the formation mechanism and causative factors of the debris flow by studying the terrain zoning characteristics, erosion and deposition characteristics, sources, and river-bloc- king conditions. Based on the characteristic parameters of debris flow activity, the paper puts forward the prevention scheme of 5 sediment storage dams, 1 check dam and 2 protection dams. In consideration of com- bining debris flow disaster prevention with highway planning and construction, the scheme can effectively achieve the aim of sand collection, base bed stabilization and slope protection, which has significant efficien- cy of disaster reduction and prevention.
出处
《安全与环境工程》
CAS
2016年第1期16-21,共6页
Safety and Environmental Engineering
基金
四川省教育厅科研项目(14CZ0022)
关键词
俄瓜热十多沟泥石流
固体物源
动储量
防治对策
Egua reshiduo Valley debris flow
solid sources
dynamic reserves
prevention strategy
