IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitleDebris Flows Along Some highways of Qinghai-Xizang Plateau and Their Prevention and Control
Publication Place重庆
Keyword防治 泥石流 青藏公路
AbstractPreliminary staistics on debris flows along 14 highways of Qinghai-Xizang Plateau show that there are various types of debris flows, such as rainfall-induced, glacial and collapse-induced. In Particular, debris flow along Sichuan-Xizang, China-Nepal and Yunnan-Xizang Highways are predominant in mumberand the most destructive. According to their scales, the debris flows mentioned above may be classified into four, i.e. extraordinarily large, larger, middle and small. The polivy, "prevention is better than cure" and the prinviple "avoid the strong and comtrol the weak; ensure the key and control them one by one" should be followed in the seection of a road line through the debris flow region. The preventive engineering against debris flows included draining, regulating and damming. In the draining works, the rapid-flow channel, drain ditch and directive dike, which are easy to combine with bridges, are widely used because of their simple structure and good effect. The regulating structures can be built up of local materials, and are conventient in consLtruction, so they are quickly. spread. Thus it can be seen that the hazard of small and middle and middle debris flows can be effectively eliminated if the route is well selected and rationally arranged according to conditions, and the design of projects is carefully made in the light of the erosion and deposition laws of debris flows, plus construction of high quality, and regular service and maintenance.
Other Abstract笔者根据1975-1977年三次对当地公路沿线泥石流的实地考察与观测,以及有关文献资料,就青藏高原公路沿线的泥石流及其防治作了论述。
Document Type专著章节文集论文
Recommended Citation
GB/T 7714
李德基. 试论青藏高原某些公路沿线泥石流及其防治. 重庆:科学技术出版社重庆分社,1981:101-107.
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