Field Investigation of Sand Disaster and Prevention Research on the Golmud-Lhasa Section of Qinghai-Tibet Railway
Research purposes:Since the opening of the Qinghai-Tibet Railway,high altitude wind sand disaster has become an important hidden danger of the safety of railway operation.With the desert degree is more and more serious,railway wind sand disaster also appears the devolopment trend.In oder to cure radically the sand disaster to damage further the railway line,based on the investigation and study in the Golmud-Lhasa section of Qinghai-Tibet Railway,master the sand disaster activity rule,put forward the prevention of sand damage model,provide technical support for the train safe operation.Research conclusions:(1)The Qinghai-Tibet Railway sand disaster mainly distributes in the river and lake along the railway line,serious development time is the annual November to May next year.(2) Sand material mainly comes from the loose surface particles and fluvial lacustrine sediments of grassland degradation.(3) On the basis of a large number of data analysis and laboratory test,put forward several prevention measures about sand disasters.According to the guiding principle of "the distance to stop,near the fixed,comprehensive protection",put forward targeted prevention mode of river courser sand disaster,degraded grassland disaster and lakeshore sand disaster prevention mode.(4) The research results have been successfully applied to the Qinghai-Tibet Railway prevention of sand damage system and prevention of sand damage effect significantly,which gives a good benefit to the similar construction projects.
the Golmud-Lhasa section of Qinghai-Tibet Railwaysand disasterprevention mode
NETL
NSTL
万方数据
维普
