Volume 21 Issue 4
Aug.  2013
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LIU Hua, NIU Fujun, NIU Yonghong, LIN Zhanju, LU Jiahao. 2013: FINITE ELEMENT ANALYSIS ON FROZEN CHARACTERISTIC OF ROADBED WITH EXCHANGE FILLING MATERIAL IN HIGH-SPEED RAILWAY IN SEASONAL FROZEN GROUND. JOURNAL OF ENGINEERING GEOLOGY, 21(4): 516-524.
Citation: LIU Hua, NIU Fujun, NIU Yonghong, LIN Zhanju, LU Jiahao. 2013: FINITE ELEMENT ANALYSIS ON FROZEN CHARACTERISTIC OF ROADBED WITH EXCHANGE FILLING MATERIAL IN HIGH-SPEED RAILWAY IN SEASONAL FROZEN GROUND. JOURNAL OF ENGINEERING GEOLOGY, 21(4): 516-524.

FINITE ELEMENT ANALYSIS ON FROZEN CHARACTERISTIC OF ROADBED WITH EXCHANGE FILLING MATERIAL IN HIGH-SPEED RAILWAY IN SEASONAL FROZEN GROUND

Funds:

  • Received Date: 2012-05-08
  • Rev Recd Date: 2012-12-07
  • Publish Date: 2013-08-25
  • Frost heave has caused serious damage to railway roadbeds in seasonal frozen regions. Therefore, frost heave prevention is the basic principle of roadbed design in seasonal frozen regions. It is a rigorous task because of the strict demand of the deformation in high-speed railway. The heat transport equation and two-dimensional finite element method are employed to simulate the maximum frozen depth in the coming 50 years. The simulation consider the warming environment temperature in the conditions of different depths, shapes, filling materials, and construction seasons. It studies the roadbed temperature field of different parts in high-speed railway. Based on the numerical simulation, appropriate depth, shape, filling material and construction season are proposed for exchange filling material roadbed design. The relationship between the railroad and the railway thermal stability is analyzed as well.
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