塔里木沙漠石油公路风沙危害

The Blown Sand Disaster Along Tarim Desert Oil Transportation Highway.

为了给沙漠石油公路防沙工程设计和未来公路养护提供科学依据，综合野外观测及风洞模拟实验资料，分析了塔里木沙漠石油公路风沙危害的形成，建立了风沙危害程度的评判模式，从而得出公路沿线的风沙危害具有如下时空分布规律：（１）在时间上，风沙危害主要集中于春、夏季节（４－９月），其中４月份最强；（２）在空间上，愈向沙漠深入，风沙危害愈烈．风沙危害程度指数的理论估算值与风沙现象观测记录相吻合．

By means of field observation and laboratory experiment, the generation of the blown sand disaster along Tarim desert oil transportation highway was analysed, the extent assessment model was established. Finally the conclusions reached are: (1) In the temporal distribution, the disaster is mainly concentrated on spring and summer (April-September), the most severe is in April. (2) In the spatial distribution, the disaster is more intensive into the desert. (3) Extent zones are outlined accorting to the theoretically estimated values of blown sand disaster extent, which fit well in the blown sand disaster phenomena observed and recorded.