灾害学Issue(2)：199-204,6.DOI:10.3969/j.issn.1000-811X.2015.02.038
陕西秦岭南麓316国道沿线地质灾害防治对策研究
Control Measures on Geological Disasters along No.316 National Road in the South of Qinling Mountains in Shaanxi
摘要
Abstract
Hantai section of No.316 National Road is located in middle-low mountain areas of the southern Qinling piedmont, along which there are complex geological conditions and abundant geohazard types.Geohazards occurred frequently during flood seasons every year, so the roads are often buried by unstable rocks which have a volume of hundreds to tens of thousands of cubic meters.As a result, traffics are blocked for several hours and even several days.Also, passing vehicles and pedestrians are under great threat.Due to the fact that No.316 National Road is a major channel of China's north-south transport and has an important social influence, types and character-istics of geohazards along Hantai section of No.316 National Road are analyzed and prevention countermeasures are proposed based on geohazard investigation of Hantai District at a scale of 1: 50000 .Field investigation reveals that collapse, landslides and debris flows are the main geohazards.Slope shape, aspect, height, width and thickness of slope body etc.are main inherent factors that determine development characteristics of geohazards along the road. And, rainfall and human activity are main external factors that induce geohazards in the study area.At last, pre-vention countermeasures including monitoring and early warning, load shedding, flexible support networks and anti-slide piles are proposed, providing decision basis for geohazard prevention of Hanzhong City Land Resources Bureau and other relevant departments, and also providing technical support for prevention of geohazards along highways.关键词
316国道沿线/地质灾害类型/防治对策/秦岭南麓/陕西Key words
along No.316 National Road/types of geohazards/control measure/Shaanxi分类
交通工程引用本文复制引用
姬怡微,李永红,向茂西,贺卫中,刘海南,李辉..陕西秦岭南麓316国道沿线地质灾害防治对策研究[J].灾害学,2015,(2):199-204,6.基金项目
《陕西省地质调查院关于下达地质灾害详调查任务的通知》 （）
