[1]易 伟,余 斌,刘 秧,等.滚石冲击力计算方法研究[J].山地学报,2016,(03):310-316.[doi:10.16089/j.cnki.1008-2786.000133]
 YI Wei,YU Bing,LIU Yang,et al.Research on Calculation Method of Rockfall Impact Force[J].Mountain Research,2016,(03):310-316.[doi:10.16089/j.cnki.1008-2786.000133]
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滚石冲击力计算方法研究()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2016年03期
页码:
310-316
栏目:
山地灾害
出版日期:
2016-06-01

文章信息/Info

Title:
Research on Calculation Method of Rockfall Impact Force
文章编号:
1008-2786-(2016)3-310-07
作者:
易 伟余 斌刘 秧刘 强黄 鹏
成都理工大学/地质灾害防治与地质环境保护国家重点实验室,四川 成都 610059
Author(s):
YI Wei YU BingLIU YangLIU QiangHUANG Peng
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China
关键词:
滚石 冲击力 量纲分析
Keywords:
rockfall impact force dimensional analysis
分类号:
P642.21
DOI:
10.16089/j.cnki.1008-2786.000133
文献标志码:
A
摘要:
通过量纲分析方法理论推导出滚石冲击力的影响因素有撞击物体的质量、撞击速度、撞击物体与被撞物体的弹性模量和撞击方向与平面的夹角,并得到了各影响因素之间的关系。为了验证理论推导的正确性,实验选用不同冲击速度、质量和不同的撞击物体与被撞物体的弹性模量以及不同的夹角,通过多组实验,确定了各个关系式的系数。最终得到滚石冲击力的计算公式为 F=0.261(E1*E2/(E1+2E2)V4M2)1/3sin1/2a,该公式符合量纲和谐原理。通过对比国内外滚石冲击力实验数据和野外观测数据,结果吻合度很好,因此计算公式不受尺度的影响,可适用于野外实际情况。
Abstract:
Through the theory of dimensional analysis method it derived the influence factors of rockfall impact force.It has the quality of the impact object,impact velocity,elastic modulus and angle between the impact object and the object to be impacted,and it has been the relationship between the various factors. To verify the correctness of the theoretical derivation,impact and to be impacted object with different elastic modulus, quality and impact velocity were selected,the law of change of rockfall impact force was obtained by many times of experiment, eventually determine rockfall impact force formula for F=0.266(E1*E2/(Ed1+2E2)V4M2)1/3sin1/2a, the formula in line with the principle of harmonious dimension. By comparing the domestic and foreign existing impact force formula calculation results and field observations are in good agreement. This model is not affected by the impact of large scale,applicable to actual situation,providing a reference for rockfall hazards prevention design.

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备注/Memo

备注/Memo:
收稿日期(Received date):2015-06-03; 改回日期(Accepted):2015-08-25。
基金项目(Foundation item):国家自然基金(编号41372366)。[National Natural Science Foundation( No.41372366).]
作者简介(Biography):易伟(1988-),男(汉族),四川西昌人,硕士研究生,主要从事地质灾害防治及相关工作。[Yi Wei(1988-),male,Han nationality,born in Xichang Sichuan,masler candidate,undertaking research on geological disasters.] E-mail:578161927@qq.com
更新日期/Last Update: 2016-05-30