青藏铁路风沙灾害及其治理措施研究

Study on the sand hazards and countermeasure of qinghai-tibet railway

通过调查研究青藏铁路沙害现象、危害及其产生原因,对青藏铁路既有风沙防治工程措施进行分析与评价。结果表明:沙化草甸和草地是青藏铁路产生沙害重要风沙来源;青藏铁路采用的治沙措施主要有阻沙措施与固沙措施,阻沙措施普遍存在造价较高、施工难度大、清沙难度大等问题。固沙措施中最为理想的是植草固沙,既可根治沙害又可改善生态环境。

Through the investigation and study on the Qinghai-Tibet railway sand hazard,sand hazards and its causes,analysing and evaluating the sand control measures of Qinghai-Tibet Railway.The results show that sandy meadow and grassland are the important sources of sandstorms for the Qinghai-Tibet Railway.The control measures adopted by the Qinghai-Tibet Railway are sand-controling measures and sand-fixing measures.The sand control measures generally have high construction cost,difficulty in construction,difficulty in cleaning it and so on.The most effective sand-fixing measures is plant -fixing sand,it can cure the sand hazard and also improve the ecological environment.