Kinematic model of a translational slide in the Cidu section of the Formosan Freeway

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• 作者：Chia-Ming Lo ; Hung-Hui Li ; Chien-Chung Ke
• 关键词：Kinematic model ; Translational slide ; Numerical simulation ; Discrete element method
• 刊名：Landslides
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：13
• 期：1
• 页码：141-151
• 全文大小：3,436 KB
• 参考文献：Chen MM, Wei ZY, Fei LY (2010) Analysis geology of dip slope at the Cidu section of Formosan Freeway. Geology 29(2):12–15 (in Chinese)
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• 作者单位：Chia-Ming Lo (1)
  Hung-Hui Li (2)
  Chien-Chung Ke (3)
  
  1. Department of Civil Engineering, Chienkuo Technology University, Changhua, Taiwan, Republic of China
  2. Department of Environmental Information and Engineering, National Defense University, Taoyuan, Taiwan, Republic of China
  3. Geotechnical Engineering Research Center, Sinotech Engineering Consultants, Inc., Taipei, Taiwan, Republic of China
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Applied Geosciences
  Geography
  Agriculture
  Civil Engineering
  
• 出版者：Springer Berlin Heidelberg
• ISSN：1612-5118

文摘

This study presents a kinematic model of a translational slide in the Cidu section of the Formosan Freeway in Taiwan, including the associated kinematic processes and the geometry of the deposition. A numerical simulation of the slide was performed using the discrete element method. This kinematic model has been considered the distribution of bedding plane and joints, engineering installations, and mechanical parameters in the development of a numerical model capable of clarifying the kinematic characteristics of this translational slide with high velocities. When the friction coefficient of each particle was set to 0.03, the predicted maximum velocity was 23.6 m/s and the debris reached the other side of the Formosan Freeway. The simulations demonstrated that the three cars involved in the incident and the Formosan Freeway itself were buried at 2 to 4 s during the event (the predicted average velocity was 10.2 m/s) and that the translational slide ceased its movement at 7.5 s, resulting in the formation of a slightly fragmented depositional mass. Keywords Kinematic model Translational slide Numerical simulation Discrete element method