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中国沙漠 ›› 2005, Vol. 25 ›› Issue (4): 483-487.

• 研究论文 • 上一篇    下一篇

不同结构的尼龙网和塑料网防沙效应研究

张克存, 屈建军, 俎瑞平, 方海燕   

  1. 中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室, 甘肃兰州 730000
  • 收稿日期:2004-01-10 修回日期:2004-11-20 出版日期:2005-08-20 发布日期:2005-08-20
  • 作者简介:张克存(1978-),男(汉族),甘肃民勤人,博士研究生,研究方向为风沙物理与风沙工程学。E-mail:kecunzh@hotmail.com
  • 基金资助:
    中国科学院知识创新工程重要方向项目(KZCX3-SW-341);所知识创新项目(2004105)共同资助

Simulation on Abated Effect of Nylon and Plastic Nets with Different Structure on Wind-blown Sand in Wind Tunnel

ZHANG Ke-cun, QU Jian-jun, ZU Rui-ping, FANG Hai-yan   

  1. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2004-01-10 Revised:2004-11-20 Online:2005-08-20 Published:2005-08-20

摘要: 通过不同结构的尼龙网和塑料网对风沙流减弱作用的风洞实验研究,旨在为探求各种防沙新材料的防护功能,并为防沙新材料的开发、野外工程防沙的优化设计及其应用提供理论依据。笔者在前人研究的基础上,以平均净阻沙率、网后平均输沙率和风沙流动态变化趋势为参考指标,初步证实了尼龙网和塑料网与常规的防沙材料,在防沙功能上具有同等的作用,且当孔隙度β在40%左右时防护效益最佳。

关键词: 尼龙网和塑料网, 风沙流, 风洞模拟

Abstract: Through simulations on abated effect of nylon and plastic nets with different structure on wind-blown sand in wind tunnel, the aim of this paper is to provide a theoretic base for optimized design of blown sand engineering in the field and a new sand-defending material application. According to mean sand transporting rate, mean net sand blocking rate and dynamic changing trend of wind-sand stream behind net, the fence of porosity β=40% was found to have a good shelter effect for abating wind-blown sand particles. Therefore, it confirmed that nylon and plastic nets have the same defending function, compared with other routine sand-defending materials.

Key words: Nylon and plostic net, wind-blown sand, wind tunnel simulation

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