Abstract：Research purposes: Lanzhou-Chongqing Railway is a new corridor between northwest and southwest of China planned in ”Mid-term and Long-term Railway Network Program". The purposes are to better know the geological disaster situations along the railway line before the construction, provide technical reference to the construction and do the preparation work of materials for the construction of foundations in the area in the future.
Research methods: Based on the information about the unfavourable geology of landslide along the line between Lanzhou and Guangyuan, the full analyses and summary are made for the distribution of landslide in the area of Iine passing through and for the universality and law of the cause for formation of landslide through making investigation, drawing and survey in large scale for the area of line passing through.
Research results : The further work on deep knowing about geology has been completed , the regionalization of dangerous landslide dangerous districts has been established and the countermeasures for engineering treatment have been given for construction of Lanzhou-Chongqing Railway.
Research conclusions : In the most cases of building a railway line in the area of valley terrace of loess plateau , it is designed to conduct filling, on which the small influence is made by landslide. In the most cases of building a railway line in the area of gully ridge of loess plateau , it is designed to build bridges or tunnels , but the railway line should be refrained from passing through the place where there are many large-sized landslide , and the treatment should be done in advance for the place where there are many Large-sized landslide and the railway line has to pass through. In the most cases of building a railway line in the intersection of structural systems，it is designed to build tunnels and large or mid-sized bridges so as to avoid most of landslides. For most cases of building a railway line in the impacting area of a river, it is designed to build tunnels and conduct subgrade engineering, on which the small influence is made by landslide. In the most cases of building a railway line in the area of single structural system, it can be designed in many ways, on which the small influence is made by landslide.
曹峰. 新建兰渝铁路兰州至广元段滑坡危害区划研究[J]. 铁道工程学报, 2007, 24(5): 1-5.
CAO Feng. Research on Regionalization of Landslide Dangerous Districts along the Line from Lanzhou to Guangyuan of Newly Built Lanzhou-Chongqing Railway. 铁道工程学报, 2007, 24(5): 1-5.
2007, Vol. 24 
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