IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Thesis Advisor杜榕桓
Degree Grantor中国科学院成都山地灾害与环境研究所
Place of Conferral成都
Degree Name硕士
Degree Discipline自然地理
Other AbstractThe debris flow deposition is the last phase or whole process of debris flow. The fan formed by debris flow is an important foundation to judge and analyse the property. Scale and extent of disaster of debris flow, Many cities, towns or Villages are located on debris flow fan in the mountain areas. Debris flow fan is also a place of railway, highway factory, mine and farmland. Debris flow disaster often occur on alluvial fan, therefore it is especially necessary to predict areas likely to be flooded by debris flow. In this thesis, auther studied the characteristics of debris flow fan and the predicfion of dangerous areas. The following are Chief Consequences. (1) The formation and development of debris flow fan is controlled by the special environment conditions of geology, geomorphology, climate and hydrology, and debris flow fans possess typical depositional model. (2) The topographic characteristics and development laws of debris flow fan is the most direct evidence to lodge debris flow gullies and analyse the development and disaster extent of debris flow. (3) The characteristics of texture and structure of debris flow sediments is a notable indicator of the depositional environment formed by debris flow. (4) According to on-the-spot experiment of the depositional process, the formulas are obtained to calculate the depositional longth width and depth, the experimental results are examined comparing with actual results. The comparison shows good agreement. (5) The relationship amongst fan areas, drainage, the amount of debris flow deposit, debris flow accmualative modulus and the supplement of avalanches and landslides are discussed, and experimental formulas are established. (6) In order to predict the dangerous area of debris flow disaster, the computational methods on the amount of debris flow deposits are approached. (7) Basedon the thesis content discussed above, the basic conception of debris flow Prevention and control are put forward.
Document Type学位论文
Recommended Citation
GB/T 7714
唐川. 泥石流堆积特征与扇形地危险范围预测[D]. 成都. 中国科学院成都山地灾害与环境研究所,1988.
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