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中国沙漠 ›› 2024, Vol. 44 ›› Issue (3): 9-17.DOI: 10.7522/j.issn.1000-694X.2023.00114

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双排尼龙阻沙网-草方格联合沙障防风效应的风洞实验

王茂林1(), 宋玲1(), 刘杰1,2, 王云飞3   

  1. 1.石河子大学 水利建筑工程学院,新疆 石河子 832003
    2.新疆交通规划勘察设计研究院有限公司,新疆 乌鲁木齐 830000
    3.中交第三公路工程局有限公司,湖北 武汉 430056
  • 收稿日期:2023-07-05 修回日期:2023-08-29 出版日期:2024-05-20 发布日期:2024-06-11
  • 通讯作者: 宋玲
  • 作者简介:宋玲(E-mail: xjsdsl0514@163.com
    王茂林(1998—),男,四川广元人,硕士研究生,主要从事荒漠化防治研究。E-mail: 15283902571@163.com
  • 基金资助:
    交通运输行业科技项目(2022-ZD-007);新疆交通运输厅科技项目(KY2020050701)

Wind tunnel experiment on windproof effect of double-row nylon sand-blocking net-grass square combination

Maolin Wang1(), Ling Song1(), Jie Liu1,2, Yunfei Wang3   

  1. 1.College of Water Conservancy & Architectural Engineering,Shihezi University,Shihezi 832003,Xinjiang,China
    2.Xinjiang Transportation Planning,Survey and Design Institute Co. Ltd,Urumqi 830000,China
    3.CCCC Third Highway Engineering CO. LTD,Wuhan 430056,China
  • Received:2023-07-05 Revised:2023-08-29 Online:2024-05-20 Published:2024-06-11
  • Contact: Ling Song

摘要:

为了解双排尼龙阻沙网-草方格联合沙障的防风效应,进行孔隙度为40%、45%、55%的双排尼龙阻沙网-草方格联合沙障风洞实验,研究在6、10、14 m·s-1等3种风速下的风速加速率等值线、防风效能和风速廓线指标。结果表明:(1)在不同风速条件下,双排尼龙阻沙网-草方格联合沙障防风效应随着来流风速增大而明显降低;(2)40%孔隙度双排尼龙阻沙网-草方格联合沙障防风效应较好,而45%孔隙度时防风效应较差,55%孔隙度防风效应最差;(3)双排尼龙阻沙网-草方格联合沙障在防风效应方面存在累加。因此,建议在实际应用中采用40%孔隙度双排尼龙阻沙网-草方格联合沙障,以获得最佳防风效应。

关键词: 双排尼龙阻沙网, 草方格, 防风效应, 风洞模拟

Abstract:

To study the windproof effect of double-row nylon sand-blocking net-grass square combination, wind tunnel experiments of double-row nylon sand-blocking net-grass square lattice with porosity of 40%, 45%, and 55% were carried out, and the contours of wind acceleration rate, windproof efficacy, and wind contour indexes were investigated under the three kinds of wind speeds, namely, 6, 10 m·s-1 and 14 m·s-1. The results show that: (1) Under different wind speed conditions, the windproof effect of double-row nylon sand-blocking net-grass combination decreases significantly with the increase of the incoming wind speed. (2) The windproof effect of the combined use of double-row nylon sand-blocking net-grass squares using a porosity of 40% is relatively better, whereas the windproof effect is relatively poorer when using a porosity of 45%, and the worst is found in the case of the windproof effect of porosity of 55%. (3) There is a cumulation of windproof effects in the combined application of double-row nylon sand-blocking net-grass squares. Therefore, it is recommended that a 40% porosity double-row nylon sand-blocking net-grass square grid be used in combination with practical applications to obtain the best wind protection effect.

Key words: double-row nylon sand-blocking net, grass square, windproof effect, wind tunnel simulation

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