青藏铁路格拉段沙害现场调查及防治研究

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摘要研究目的:青藏铁路自通车以来，高原风沙灾害就成为铁路安全运营的重要隐患，且随着高原沙漠化程度日趋严重，铁路风沙灾害也出现发展势态。为根治沙害对线路的进一步危害，通过对青藏铁路格拉段沙害现场调查研究，掌握了格拉段沙害活动规律，提出了沙害防治模式，为列车安全运营提供了技术支持。

研究结论:(1)青藏铁路格拉段沙害主要分布在铁路沿线河区与湖区，严重发育时间为每年11月到翌年 5月;(2)沙物质主要来自草场退化形成疏松的地表颗粒和河相湖相沉积物;(3)在进行大量资料分析和室内试验的基础上，提出适合于沿线风沙灾害的防治措施，并依据“远阻近固、因地制宜、综合防护”的指导原则，有针对性地提出了河道风沙灾害防治模式、退化草场风沙灾害防治模式和退化草场风沙灾害防治模式; (4)该研究成果成功应用于青藏铁路防沙体系中，防沙效果显著，可为类似工程提供参考。

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	李顺平
	蒋富强
	薛春晓
	石龙

关键词 ：青藏铁路格拉段, 铁路沙害, 防治模式

Abstract：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 development trend. In order 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.

Key words： the Golmud-Lhasa section of Qinghai-Tibet Railway sand disaster prevention mode

收稿日期: 2013-09-25

PACS:

U216. 41 + 3

作者简介: 李顺平，1962年出生，男，高级工程师

引用本文:

李顺平,蒋富强,薛春晓,石龙. 青藏铁路格拉段沙害现场调查及防治研究[J]. 铁道工程学报, 2014, 31(5): 1-5.
Li Shun-pings,JIANG Fu-qiang，Xue Chun-xiao，Shi Long. Field Investigation of Sand Disaster and Prevention Research on the Golmud-Lhasa Section of Qinghai-Tibet Railway. Journal of Railway Engineering Society, 2014, 31(5): 1-5.

链接本文:

http://tdgcxb.crec.cn/CN/ 或 http://tdgcxb.crec.cn/CN/Y2014/V31/I5/1

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