Analysis on Material Conditions Causing Debris Blow and Its Countermeasures in Boddhidharma Trench
详细信息
- 责任者：Qi Gan (Beijing Institute of Geology ; Beijing 100120 ; China) ; Zhang Changmin
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2011
- 卷期：38(5)
- 关键词：泥石流 ; debris flows ; 北京 ; Beijing
- 页码：p.102-109
- 图表：7 illus., 4 tables, 12 refs.
- 分类号：1800
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
The Boddhidharma trench in Mentougou District of Beijing City is an ancient debris blow trench, where have occurred several times severe debris flow disasters. The conditions of geology, landform, hydro-meteorology, soil cover and human beings engineering activities are analyzed by using field investigation, geological exploration and laboratory experiment. The properties of debris flow is ascertained to be turbulent or transitional valley-shape debris flow with high density and low viscosity induced by heavy rainfall. The material conditions are primarily studied by the means of particle analysis, electron microscope scanning, X-ray diffraction analysis and laboratory experiment. Finally, the comprehensive countermeasures are put forward.
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