JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2015, Vol. 50 ›› Issue (07): 89-94.doi: 10.6040/j.issn.1671-9352.0.2014.360

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Research on the angle of repose of natural sand

ZHOU Xiang-ling1, muhammadtursun·ABUDUREYIM1, YU Sheng-qing1, LI Hua-zhen2   

  1. 1. Department of Physics, Kashgar Teachers College, Kashgar 844000, Xinjiang, China;
    2. Physics College, Chongqing University, Chongqing 401331, China
  • Received:2014-08-07 Online:2015-07-20 Published:2015-07-31

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Abstract: In this paper we take the sands collected from the natural dunes at the southwest edge of Taklimakan desert as our experimental subjects. We drift the sands into mounds by using static funnel method and record some videos for the drifting processes Then we translate the videos into pictures and analyze them by the computer software “CorelDraw”. By analysis we get the Dependence of the static angle and the collapse angle of the sand mounds on the time and the particle size. Then we make some conclusions: (1) The angle of the sand mound always follow the same circle, i.e., from the maximum static angle to the collapse angle and back to the minimum static angle. Thus the static angles oscillate over time. (2) When the particle diameter is less than 0.3 millimeter, the difference between the collapse angle and the static angle will be increased with the increase of the particle size. Whereas when the particle diameter is greater than 0.3 millimeter, it will be decreased with the increase of the particle size. (3) The average difference between the collapse angle and the static angle is (4.6±0.6)°. (4) The difference between the collapse angle and the static angle of the mixed sand mounds is range(5.2±0.3)°.

Key words: sand, sand heap, static angle, collapse angle, particulate matter

CLC Number: 

  • O469
[1] 陆坤权, 刘寄星.颗粒物质(上)[J].物理, 2004, 33(9):629-635. LU Kunquan, LIU Jixing. Static and dynamic properties of granular matter(I)[J]. Physcise, 2004, 33(9):629-635.
[2] 陆坤权,刘寄星.软物质物理学导论[M].北京:北京大学出版社,2006:645-680.
[3] GENNES DE P G. Granular matter:a tentative view[J]. Rev Mod Phys, 1999, 71(2):374-382.
[4] JENSEN H J. Self organized criticality[M]. London: Cambridge University Press, 1998.
[5] EVESQUE P, RAJCHENBACH J. Instability in a sandHeap[J]. Phy Rev Lett, 1989(62):44-46.
[6] HORVATH V K, JANOSI I M, VELLA P J. Anomalousdensitydependence ofstatic friction in sand[J]. Phys Rev: E, 1996(54):2005-2009.
[7] 田晓红,李光涛,张淑丽.谷物自然休止角测量方法的探究[J].粮食加工,2010,35(1):68-71. TIAN Xiaohong, LI Guangtao, ZHANG Shuli. A exploration of measurement methods of grain natural angle of repose[J]. Food Processing, 2010, 35(1):68-71.
[8] 陈嘉真,李学军,林伟健.茶叶的休止角[J].茶叶科学,1987,7(2):58-59. CHEN Jiazhen, LI Xuejun, LIN Weijian. The angle of repose of the tea[J]. Tea Science, 1987, 7(2):58-59.
[9] BAGNOD E R. Physics of blown sand and sand dunes[M]. London: Chapman and Hall Press, 1941:40-85.
[10] MILLER R I, BYRNE R J. The angle of reose for a single grain on a fixedrough bed[J]. Sedimentology, 1966, 6:303-314.
[11] DORBOLO S. Stability limit of granular monolayer[J]. Eur Phys J: E, 2005, 17:77-81.
[12] 刘建宝,王乃昂.沙漠沙休止角一种新的测定方法[J].兰州大学学报,2010,46(4):37-41. LIU Jianbao, WANG Naiang. A new determination method of desert sand angle of repose[J]. Journal of Lanzhou University, 2010, 46(4):37-41.
[13] 朱震达.中国沙漠、沙漠化、荒漠化及其治理对策[M].北京:中国环境出版社,1999:33-47.
[14] 张克存,屈建军,俎瑞平,等.不同下店面对风沙流特性影响的风洞模拟研究[J].干旱区地理,2004,27(3):352-355. ZHANG Kecun, QU Jianjun, ZU Ruiping, et al. Wind tunnel simulation about the effects of the different underlying surfaces on the features of drifting sand currents[J]. Arid Land Geography, 2004, 27(3):352-355.
[15] 任仓钰.毛乌素沙地沙漠化原因探讨[J].地质灾害与环境保护,2002,13(2):30-31. REN Cangyu. The reasons of sandy land desertification in maowusu[J]. Geological Hazards and Environment, 2002, 13(2):30-31.
[16] 彭政,蒋亦民.颗粒孔洞流的最大休止倾角和流量公式[J].物理学报,2011,60(5):054501.1-054501.5. PENG Zheng, JIANG Yimin.The biggest angle of repose of flow of particle hole and flow formula[J]. Physics, 2011, 60(5):054501.1-054501.5.
[17] 周英,张国琴.颗粒堆积高度对静止角的影响[J].物理实验,2007,27(3):10-13. ZHOU Ying, ZHANG Guoqin. Particle packing height on the angle of repose[J]. Physics Experiments, 2007, 27(3):10-13.
[18] 尹小涛,王水林,马双科,等.强度变化对崩坡积体堆积机制及稳定性影响研究[J].岩土力学,2010,31(2):620-626. YIN Xiaotao, WANG Shuilin, MA Shuangke, et al. Intensity on the accumulation of collapse slope integrated mechanism and stability[J]. Rock and Soil Mechanics, 2010, 31(2):620-626.
[19] 郭蕴博,陈骁,王端,等.颗粒物质在冲击作用下的堆积分布[J].物理学报,2007,56(4):2030-2036. GUO Yunbo, CHEN Xiao, WANG Duan, et al. Accumulation distribution of particulate matter under the effect of impact[J]. Physics, 2007, 56(4):2030-2036.
[20] 肖文波, 胡林,蔡绍洪.颗粒物质中的崩塌现象[J].中国沙漠,2004,24(6):798-801. XIAO Wenbo, HU Lin, CAI Shaohong.The collapse phenomenon of particulate matter[J]. Journal of Desert Research, 2004, 24(6):798-801.
[21] 刘建宝,王乃昂.沙丘沙休止角影响因素实验研究[J].中国沙漠,2010,30(4):758-762. LIU Jianbao, WANG Naiang. Dune sand angle of repose factor experiment[J]. Journal of Desert Research, 2010, 30(4):758-762.
[22] 董玉秀,宋珍鹏,崔素娟.对休止角的测定方法的讨论[J].中国药科大学学报,2008,39(4):317-320. DONG Yuxiu, SONG Zhenpeng, CUI Sujuan. The discussion of determination of the angle of repose[J]. Journal of China Pharmaceutical University, 2008, 39(4):317-320.
[23] 刘小燕,周生健,张小刚.基于图像处理的回转窑物料休止角检测方法[J].控制工程,2009,16(4):498-501.
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