Exploration of Probability Distribution of Velocities and Trajectory of Rolling Stone Based on Stochastic Rolling Stone Collision

doi:org/10.1007/s10706-020-01268-8

IR > 土木工程学院

	Exploration of Probability Distribution of Velocities and Trajectory of Rolling Stone Based on Stochastic Rolling Stone Collision
	Shaozhen Duan; Jinlong Sun
	2020
发表期刊	Geotechnical and Geological Engineering
ISSN	0960-3182
卷号	38 期号:38 页码:3931-3940
摘要	Rockfall is one of the common geological disasters in China, which causes huge losses to the country and the people. Based on the impulse and impulse moment theorems, and considering the stochastic factors in the process of rolling stone collision, a stochastic collision model of the rockfall-wall is established, and the analytical solution for the velocity of the rolling stone after collision is obtained. When considering the initial rotation of the rolling stone, the predicted result from the model agrees with the experimental result, and when the initial rotation is ignored, the result obtained from the model will underestimate/overestimate the rebound velocity, and the maximum reaches 20%. Furthermore, the probability distribution and the fit curve for the velocity and trajectory of the rolling stone depends on the project. The result shows that the rebound velocity and angle of the rolling stone follow a typical Gaussian distribution, and the horizontal distance and bounce height follow the Gaussian and exponential distribution, respectively. The prediction of the velocity and trajectory of the rolling stone provides a theoretical basis for the optimal design of engineering structures.
关键词	Rockfall hazard Particle collision Contact model Initial rotational angular velocity Probability distribution
DOI	org/10.1007/s10706-020-01268-8
收录类别	EI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000546731100041
出版者	SPRINGER
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/103477
专题	土木工程学院
通讯作者	Shaozhen Duan
作者单位	The Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology
第一作者单位	甘肃省土木工程防灾减灾重点实验室
通讯作者单位	甘肃省土木工程防灾减灾重点实验室
第一作者的第一单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Shaozhen Duan,Jinlong Sun. Exploration of Probability Distribution of Velocities and Trajectory of Rolling Stone Based on Stochastic Rolling Stone Collision[J]. Geotechnical and Geological Engineering,2020,38(38):3931-3940.
APA	Shaozhen Duan,&Jinlong Sun.(2020).Exploration of Probability Distribution of Velocities and Trajectory of Rolling Stone Based on Stochastic Rolling Stone Collision.Geotechnical and Geological Engineering,38(38),3931-3940.
MLA	Shaozhen Duan,et al."Exploration of Probability Distribution of Velocities and Trajectory of Rolling Stone Based on Stochastic Rolling Stone Collision".Geotechnical and Geological Engineering 38.38(2020):3931-3940.