 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12949 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8096
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| In English (Mech. Solids): | | 4853 |
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| Wei Qiao, Chong Shi, Junbao Pian, Ling-kai Zhang, and Xiao-ying Zhang, "Research on Impacting Vibration Response Based on Discrete Element," Mech. Solids. 59 (4), 2037-2047 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
4 |
Pages |
2037-2047 |
| DOI |
10.1134/S0025654424603793 |
| Title |
Research on Impacting Vibration Response Based on Discrete Element |
| Author(s) |
Wei Qiao (College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052 China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi, Xinjiang, 830052 China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu, 210098 China;Research Institute of Geotechnical Engineering, Hohai University, Nanjing, Jiangsu, 210098 China)
Chong Shi (College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052 China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi, Xinjiang, 830052 China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu, 210098 China; Research Institute of Geotechnical Engineering, Hohai University, Nanjing, Jiangsu, 210098 China, scvictory@xjau.edu.cn)
Junbao Pian (Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu, 210098 China; Research Institute of Geotechnical Engineering, Hohai University, Nanjing, Jiangsu, 210098 China;)
Ling-kai Zhang (College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052 China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi, Xinjiang, 830052 China)
Xiao-ying Zhang (College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052 China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi, Xinjiang, 830052 China) |
| Abstract |
Ground vibration is a crucial foundation for the study of blasting demolition and rock-soil failure. In this paper, a soil-layer coupling model is established using the discrete element method
(PFC3D), which takes distribution of microscale features into account. Subsequently, based on the Mindlin solution in an elastic half-space subjected to concentrated forces, the difference between the
theoretical and numerical solutions is validated, and this study further investigates the laws on impacting vibration responses. The results reveal that, under the impact action of falling hammer, the vibration velocity of soil particle approximates a triangular function over time. The vertical stress exhibits a distribution pattern of increasing initially with soil depth and then decreasing. The contact force
chains disperse in a ‘root-like’ manner, leading to a tendency for shear failure in the soil. Actually,
impact vibration is a process of accelerated energy conversion, with the majority of impact energy dissipated by various forms of damping. This method can provide a theoretical basis for the stability analysis of ground vibration and disaster prediction. |
| Keywords |
discrete element method, impacting vibration, Mindlin solution, improved parallel bond model |
| Received |
11 May 2024 | Revised |
06 August 2024 | Accepted |
06 August 2024 |
| Link to Fulltext |
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