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中国沙漠 ›› 1997, Vol. 17 ›› Issue (2): 180-184.

• 研究论文 • 上一篇    下一篇

青藏线伏沙梁段风沙危害及其防治

于志勇   

  1. 兰州铁路局科研所, 兰州 730000
  • 收稿日期:1996-01-15 修回日期:1996-11-23 出版日期:1997-06-20 发布日期:1997-06-20
  • 作者简介:于志勇,男,1963年生,工程师。主要从事铁路沙害防治工作。

WIND-SAND FLOW AND ITS CONTROL AT FUSHALIANG SECTION OF QINGHAI-XIZANG RAILWAY

Yu Zhiyong   

  1. Institute of Scientific Research of Lanzhou Railway Bureau, Lanzhou 730000
  • Received:1996-01-15 Revised:1996-11-23 Online:1997-06-20 Published:1997-06-20

摘要: 伏沙梁地段的主要风向为WNW、W、NW和NE,8~15m/s的起沙风在3~8月盛行,风沙流运动呈摆动式,4月份风沙活动最强烈,合成风向为WNW,其合成输沙量为9.970 m3·a-1·m-1。当地以12 m/s、13 m/s两风速的输沙量最大,分别为2.556 m3·a-1·m-1和2.538 m3·a-1·m-1。纵向沙垄年前移量为2~5 m,沙垄脊线向南偏移,年偏移量为0.2~0.5 m。阻固结合的工程措施是当前采用的最有效措施。

关键词: 伏沙梁, 合成输沙量, 沙垄脊线

Abstract: Wind-sand flow at Fushaliang section of Qinghai-xizang railway was studied.The results are as follows:(1) The dominant wind directions are WNW,W,NW and NE in decreasing order,and sand-moving wind of 8~15 m/s prevails from March to Auguest.(2) The compositional wind direction is WNW,and its transportability of sediment is 9.970 m3·a-1·m-1.(3) The transportabilities of sediment reach the maximum values of 2.556 and 2.538 m3·a1·m-1 when the local wind are at 12 and 13 m/s respectively.(4) The longitudinal sand ridge has been moving at the average speed of 2~5 m/a and the ridge line deviates to south at 0.2~0.5 m/a.(5) Engeering measures combining preventing and fixing sand is the effective method,proved by experiment.

Key words: Fushaliang, The compositional transportability of sediment, Sand ridge line

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