青藏铁路主要沙害路段治理技术及成效

Sand damage control and effect at main sections of Qinghai-Tibet railway

青藏铁路建成以来,沙害日趋严重,危及铁路运营安全,备受关注。通过野外调查和室内分析,对青藏铁路沿线的红梁河、秀水河-北麓河、沱沱河、通天河、扎加藏布、错那湖等6个路段的沙害类型、特征、治理及成效进行研究。提出青藏铁路的防沙应以生物措施为主,机械措施为植被恢复服务。旨在加深对高寒地区铁路沙害的认识,为青藏铁路防沙提供依据。

Ever since the Qinghai -Tibet railway was built up, it has been suffering more and more seriously from sand damage, which threatens the safe operation of the railway, thus, it is in great eager to control sand damage along the railway. In this paper, types, characteristics, control and its effect for sand damage were researched by field investigation and laboratory analysis in 6 sections along the Qinghai - Tibet Railway, namely Hongliang river, Xiushui -Beilu river, Tuotuo river, Tongtian river, Zhajiazangbu, and Cuona lake. It is suggested that the sand prevention of Qinghai - Tibet railway should dominated by biological measures, and vegetation restoration served by mechanical measures. The research aims to deepen the understanding of sand damage of railway in high and cold area, and provides the basis for sand damage prevention of Qinghai-Tibet railway.