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Alternative TitleComparison of Impact Force Formula for Boulder in Debris Flow
林伟1,2,3; 谢洪1,2; 马东涛1,2
Corresponding Author谢洪
Source Publication山地学报
Contribution Rank1
Abstract对目前的泥石流冲击力计算公式进行了汇总,比较分析了各公式的理论基础、适用条件和局限性。根据成昆铁路利子依达沟1981 - 07泥石流的实际情况,计算出了适用于利子依达沟泥石流的非完全弹性碰撞公式。之后,利用利子依达沟的泥石流大块石撞击破坏桥墩的实例分析冲击力公式计算值大小。从结果看,基予Hertz理论的非完全弹性碰撞公式计算结果明显的偏大。因此,若要用该公式计算泥石流大块石对桥墩的冲击力,应对公式进行改进或修正,以便准确地计算冲击力。
Other AbstractIn this paper, the previous impact force formulas of the boulder in debris flow were summarized and comparative analysis of the theoretical basis of the formula, applicable conditions and limitations was conducted. Non-perfect elastic collision formula for the Liziyida gully was derived on the basis of the actual situation of it. Taking the impact damage of the boulder in the Liziyida gully to bridge pillar for example and then analysis the impact force calculated by the formulas. From the analysis, we know that the impact force calculated by the formula of non-perfect elastic collision based on Hertz law is significantly larger. Accordingly, the formula should improve or modified to calculate the impact force of the boulder in the debris flow to bridge pillar accurately.
Keyword泥石流 大块石冲击力 Hertz理论 非完全弹性碰撞
Indexed By其他
Document Type期刊论文
Corresponding Author谢洪
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
林伟,谢洪,马东涛. 泥石流大块石冲击力计算公式的比较[J]. 山地学报,2011,29(S):101-106.
APA 林伟,谢洪,&马东涛.(2011).泥石流大块石冲击力计算公式的比较.山地学报,29(S),101-106.
MLA 林伟,et al."泥石流大块石冲击力计算公式的比较".山地学报 29.S(2011):101-106.
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