›› 2008, Vol. 29 ›› Issue (5): 1396-1402.

• Geotechnical Engineering • Previous Articles     Next Articles

Research on dynamic characteristics of slab track-roadbed systems with soft rock as embankment filling under high speed moving load

QING Qi-xiang1, 2, WANG Yong-he2, ZHAO Ming-hua1, WAN Zhi2   

  1. 1. Department of Mechanical Engineering and Automobile, Hunan University, Changsha 410082, China; 2. School of Civil and Architectural Engineering, Central South University, Changsha, 410075, China
  • Received:2006-07-12 Online:2008-05-10 Published:2013-07-24

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Abstract: It has been founded that the analysis model of semi-infinite three-dimensional spatial finite elements for the slab track-roadbed systems with soft rock as embankment filling, firstly, based on weak variational form of the equilibrium equations for the system in D’Alembert method; and the dynamic characteristics of the slab tracks in high-speed railways are investigated. Various state dynamic response values of the blanket top surface and soft rock filling embankment top surface are acquired, which is important for design and construction of engineering. Secondly, the engineering physico-mechanical characteristics of roadbed filling with soft rock as embankment material have been traversed by indoor test; intensity and deformation characteristics were mastered, It was demonstrated that the fillings can satisfy the requirements provision of ballastless track and embankment for high-speed railway and standards of high-speed railway roadbed design in the aspects of strength and stiffness properties.

Key words: slab track, moving load, soft rock, roadbed, dynamic characteristics

CLC Number: 

  • U 213.242
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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