上海交通大学学报

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (10): 1642-1646.

• 天文学、地球科学 • 上一篇    下一篇

高速远程滑坡气垫效应的风洞模拟试验研究  

邢爱国1，殷跃平2，齐超1，张明3，黄汉杰4，韩金良3   

  1. (1. 上海交通大学 土木工程系，上海 200240；2. 中国地质调查局，北京 100011；3. 中国地质科学院 地质力学研究所，北京 100081；4. 中国空气动力研究与发展中心，绵阳 621000)
  • 收稿日期:2011-10-12 出版日期:2012-10-30 发布日期:2012-10-30
  • 基金资助:

    国家科技支撑计划项目(2006BAC04B02)，国家自然科学基金资助项目(40602035，41272382)，国土资源大调查计划项目(1212011014032)，上海市重点学科建设资助项目(B208)

Study on the Wind Tunnel Testing of Air Cushion Effect of High-Speed and Long-Runout Landslide

XING  Ai-Guo-1, YIN  Yue-Ping-2, QI  Chao-1, ZHANG  Ming-3, HUANG  Han-Jie-4, HAN  Jin-Liang-3   

  1. (1. Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. China Geological Survey, Beijing 100011, China; 3. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China; 4. China Aerodynamics Research & Development Center，Mianyang 621000， Sichuan, China)
  • Received:2011-10-12 Online:2012-10-30 Published:2012-10-30

摘要： 将木质材料制成不同坡度、不同横断面形式的沟谷地形，通过大型风洞模拟试验，测定了地面效应影响下滑体凌空飞行时的空气动力学参数.风洞试验结果表明：沟谷地形对地面效应影响显著.地形圈闭效果越好，地面效应越明显，模型升力系数相对于平坦地形将成倍增加；模型离地高度越小，气垫效应越显著，但对平坦地形影响不明显；各沟谷地形下升阻比曲线变化基本相同，最大值均发生在飞行迎角8°左右.    

关键词: 高速滑坡, 空气动力学效应, 气垫效应, 风洞试验

Abstract: Many high-speed and long-runout landslides could fly in the air at the start-range stage, which has a significant effect of aero-dynamics. A wing model which is similar to sliding mass and a wing tunnel testing are made to determine the influence of aerodynamic effect and aerodynamic parameters. In the testing, valley terrain with different slopes and cross-sections can be made of wooden material. The results of wind tunnel testing show that aerodynamic properties of high-speed landslide are significant by the air cushion effect. Because of the different valley terrain, lift coefficient will dramatically increase when the around mountains get to closer. Therefore, vertical lift of high-speed sliding mass is increased, but it’s not obvious in flat terrain. The variations of lift-drag ratio in different valley terrains are basically the same, and the maximum values happen when angles of attack equal to 8°.

Key words: high-speed landslide, aerodynamic effect, air cushion effect, wind tunnel testing

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