Analysis the Influence of the Viscous Damp Coefficient to Slump Viscous Particle Motion

Abstract:

It is very complex that the viscous slump particle motion. The obtained motion parameters of the viscous particles which can’t be captured by experimental facility through PFC3D, which are used to analysis the influence of the viscosity damp coefficient to the motion of it. The influence includes the peak translation velocity, peak rate of rotation of the special particle and the biggest impact force. All of which have the maximum value when the viscosity damp coefficient is 0.3, but all of which reduce when the viscosity damp coefficient is 0.5. The smaller particle is easy to suffer to the influence of the viscosity damp coefficient than the bigger particle.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 312-316
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.312
• Online since: May 2012
• Authors: Xian Jun Ji, Guo Qiang Ou, Shun Yang, Jun Wang
• Keywords: Landslip-Collapse Particle, PFC3D, Process of Motion, Viscous Damp Coefficient

References

[1] He Keqiang et al. Debris Flow – a New Geological Disaster.[J] Hydrogeology and Engineering Geology. 1991,18(5):21-23 (In Chinese)

[2] Yin Yueping. Re-searches on the geo-hazards triggered by Wenchuan earthquake, Sichuan[J]. Journal of Engineering Geolo-gy, 2008, 16(4): 433-444. ( in Chineses)

[3] Shen Baotang, Wang Yongjia. Discrete Element Method for Slope Failure Mechanism.[J]. Journal of Northeastern University(Natural Science) .1989, 10(4): 349―354. ( in Chineses)

[4] CUNDALL P A. A Computer model for simulating progressive large scale movements in blocky rock systems[C]// Proceedings of the Symposium of the International Society of Rock Mechanics. Nancy, France： International Society of Rock mechanics,1971:2–8.

DOI: 10.1016/0148-9062(71)90008-8

[5] CUNDALL P A. Formulation of a three-dimensional distinct element model—part I(a scheme to detect and represent contacts in system composed of many polyhedral blocks[J]. Int. J. Rock Mech. and Min. Sci. and Geomech. Abstr.,1988,25(3):107–116.

DOI: 10.1016/0148-9062(88)92293-0

[6] ZHOU Jian，CHI Yong，CHI Yuwei，et al. The method of particle flow and PFC2Dcode[J]. Rock and So Mechanics, 2000, 21(3): 271–274. ( in Chineses)

[7] [9] Itasca Consulting Group，Inc.. PFC3D(partial flow code in 3 dimension)Version 4.0[R]. Minneapolis，Minnesota：Itasca Consulting Group,Inc.,2008.

[8] Tang Bangxing, Li Xianwen, Wu Jisan,et al. Disasters of torrential flood，debrise flow， landslide and it's prevention and control[M]. Science Press, 1994 ( in Chineses)

[9] Sun Qicheng ,Wang Guangqian. Introductory particulate matter mechanics[M]. Science Press, 2009 ( in Chineses)

[10] Zhang Xinbao, Liu Jiang. Debrise flow of DaYing Jiang river basin, YunNan Province.[M]. Chengdu map press,1989(in Chineses)