水科学进展Issue(6)：820-828,9.DOI:10.14042/j.cnki.32.1309.2015.06.008
人工阶梯-深潭破坏案例与稳定性分析
Artificial step-pool destruction cases and stability analysis
摘要
Abstract
The stability of mountain stream bed is directly related to the effects of artificial step⁃pool system on mitiga⁃tion of riverbed incision and control of debris flow. In this paper four cases of artificial step⁃pool system constructed in 2006—2010 are analyzed to figure out the control effect and the causes of destruction of the system. The step⁃forming boulder is analyzed as an individual object and forces on the boulder is derived. A new model of step⁃pool stability is obtained, which can be used to analyze the impact of the incoming discharge and scour angle. The step stability prima⁃rily relies on the size of step⁃forming boulders, bed slope, flow discharge, and scour angle. The peak discharge in flood season and scour of downstream step are the fundamental causes of step failures. The stability of artificial step⁃pool system during flood peak is the key for long term use of the system.关键词
人工阶梯-深潭系统/山区河流/阶梯稳定性/洪水流量/冲刷Key words
artificial step-pool system/mountain stream/step stability/flood discharge/scour分类
建筑与水利引用本文复制引用
李志威,王兆印,张晨笛,余国安,张康,漆力健..人工阶梯-深潭破坏案例与稳定性分析[J].水科学进展,2015,(6):820-828,9.基金项目
国家自然科学基金资助项目（51309264）；中国博士后科学基金资助项目（2014M550740） The study is financially supported by the National Natural Science Foundation of China （ No?51309264） and the Postdoctoral Sci-ence Foundation of China （ No?2014M550740）． （）
