• 责任者：Chen Hongkai （Institute of Geotechnical Engineering ; Chongqing Jiaotong University ; Chongqing 400074 ; China） ; Tang Hongmei
• 刊名：The Chinese Journal of Geological Hazard and Control
• 出版年：2008
• 卷期：19(1)
• 关键词：泥石流 ; debris flows
• 页码：p.1-5
• 图表：1 table, 34 refs.
• 分类号：1702
• issnNo：ISSN1003-8035
• isbnNo：CN11-2825/P

Debris flow along highways, locating near highways and impacting on bridges, culvert, roadbeds, road surface structures and relevant project against debris flow and destroying that through embodying, belongs to a disaster in highways. It is the general background to trigger giant debris flow that abundant material, metrological environment with fohn effect, and there are the same between axis direction of debris flow valley and main compressive direction of neo-tectonic field. Simplifying debris flow as two-phases fluid, using two-phase fluid theory, movement mechanics of sediment, Bingham hyeological equations and testing data of interaction action between particles by Bagnold, the authors establish initially the methods to calculate velocity of solid phase and liquid phase in debris flow, to calculate impact force of debris flow through formality on surface of control structure and bank of debris flow valley, and to calculate abrasion force of debris flow. This paper develops tens of techniques against debris flow such as high-speed drainage structure, debris flow tunnel and wing-shape converge structure etc. Furthermore, it develops some synthetic model against debris flow such as block-converge-drainage model through application of these techniques. Then write and publish Guiding of Design and Construction of Projects against Debris Flow along Highways, which is applied in 60 projects to control debris flow and produces prominent effect. Researches above establish primitively theories and techniques of debris flow along highways.