西藏地区公路泥石流特征、危险性评价及防治建议——以某公路泥石流为例

The Characteristics,Hazard Assessment and Prevention Advice for Highway Debris Flow in Tibet Areas——Taking a Highway Debris Flow as an Example

本文以西藏地区某公路项目区域内25处沟谷泥石流为样本,研究西藏地区沟谷泥石流的特征,采用单沟泥石流危险度评价方法对25处泥石流做出危险性评价。在此基础上,结合西藏地区泥石流灾害对公路的破坏方式,提出工程措施与生物措施相结合的防治建议。对进一步了解和防治西藏地区公路泥石流灾害提供理论价值,对西藏地区公路建设乃至其他基础工程建设具有重大实际意义。

In this paper, 25 debris flows in a highway project area of Tibet are taken as samples to study the characteristics of debris flow in Tibet area. The hazard assessment of 25 debris flows is made by the method of haz- ard assessment of single channel debris flow. On the basis of this, combining with the way of debris flow disaster to the highway in Tibet, the paper puts forward the prevention and control suggestion of engineering measure combined with biological measure. It is of great practical significance to further understand and prevent the highway debris flow disaster in Tibet, which is of great significance to highway construction and other basic engineering construc- tion in Tibet areas.