新疆天山公路泥石流风险评价研究  

Risk evaluation of debris flow for Tianshan Highway in Xinjiang

作　　者：李倩[1,2] 黄勇 

机构地区：[1]长安大学.,陕西西安710064 [2]新疆交通科学研究院,新疆乌鲁木齐830000

出　　处：《自然灾害学报》2011年第4期154-158,共5页Journal of Natural Disasters

基　　金：西部交通建设科技项目(200431800003)

摘　　要：结合泥石流危险度和公路受泥石流损毁度两个指标,构建了天山公路泥石流风险评价模型,实现了对天山公路全线主要泥石流沟的风险值量化:风险值大于0.80的为极度危险,应以防为主,治为辅;风险值在0.50～0.80之间的为高度危险,应防、治并重;风险值在0.25～0.60之间的为中度危险,应以治为主,防为辅;风险值小于0.25的为轻度危险,应以防为主,治为辅。The risk estimation model of debris flows in Tianshan Highway was set up with debris flow＇ s own dan- gerous degree and damage degree of highway by debris flow. The quantization of risk degree for main debris flow in Tianshan Highway was completed for the first time ： for the risk value more than 0.80, it is extremely dangerous ; for the risk value between 0.50 - 0.80, it is very dangerous ; for the risk value between 0.25 7 0.60, it is normally dangerous;for risk value less than 0.25,it is light dangerous. Through the statistical analysis of the risk assessment, the characteristics of Tianshan Highway debris flow and the corresponding prevention and treatment measures was studied.

关 键 词：道路工程 天山公路 泥石流 风险评价 防治对策 

分 类 号：P642.23[天文地球—工程地质学]