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列车荷载下青藏铁路冻土路基动力响应分析 被引量:25

Analysis of the Dynamic Response of Qinghai-Tibetan Railway Embankment in Permafrost Regions under Train Load
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摘要 根据带相变瞬态温度场的热量平衡控制微分方程,采用有限元方法计算分析了青藏铁路路基的瞬态温度场.随后,根据温度场的分布特点,应用Biot动力固结理论推导出的Biot动力固结控制方程,采用热、力间接耦合方法对青藏铁路路基在列车荷载作用下的瞬态动力问题进行了数值模拟,并系统的分析了列车荷载作用下铁路路基内的振动孔隙水压力、应力、位移等动力响应特点. Based on the governing differential equations of the transient temperature field with phase change, the temperature field in the Qinghai-Tibetan railway embankment is analyzed through using finite element formulae deduced by Galerkin method. Following, according to the characteristics of the temperature field and the Biot dynamic consolidation equations deduced by Blot dynamic consolidation theory, the dynamic response of Qinghai-Tibetan railway embankment under train load is computed by adopting heat force indirect coupling method. The vibration pore water pressure, stress and displacement in the embankment are analyzed systematically.
出处 《冰川冻土》 CSCD 北大核心 2008年第5期860-867,共8页 Journal of Glaciology and Geocryology
基金 国家自然科学基金重点项目(40730736) 国家自然科学基础人才培养基金冰川学冻土学特殊学科点项目(J0630966) 中国科学院知识创新工程重要方向项目(KZCX3-SW-351) 国家自然科学基金项目(40601023)资助
关键词 青藏铁路 路基 温度场 Biot动力固结 动力响应 Qinghai-Tibetan railway embankment temperature field Biot dynamic consolidation dynamic response
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参考文献25

  • 1程国栋.用冷却路基的方法修建青藏铁路[J].中国铁道科学,2003,24(3):1-4. 被引量:107
  • 2程国栋,孙志忠,牛富俊.“冷却路基”方法在青藏铁路上的应用[J].冰川冻土,2006,28(6):797-808. 被引量:44
  • 3Kondratyev V G , Pozin V A. An Introduction to a Monitoring System of Engineering Geoeryology for Railway under Construction [M]. Chita, Russian: Zabtans Prints Complex, 2000:1-84 (in Russian).
  • 4Cheng G D. A roadbed cooling approach for the construction of Qinghai-Tibet Railway [J]. Cold Regions Science and Technology, 2005, 42: 169-176.
  • 5秦大河.中国西部环境演变评估[M].北京:科学出版社,2002..
  • 6Zhang Mingyi, Zhang Jianming, Lai Yuanming. Numerical analysis for critical height of railway embankment in permafrost regions of Qinghai-Tibetan Plateau [J]. Cold Regions Science and Technology, 2005, 41 : 111 - 120.
  • 7Zhang Mingyi, Lai Yuanming, Liu Zhiqiang, et al. Nonlinear analysis for the cooling effect of Qinghai-Tibetan railway embankment with different structures in permafrost regions[J]. Cold Regions Science and Technology, 2005, 42: 237-249.
  • 8Zhang Mingyi, Lai Yuanming, Niu Fujun, etal. A numerical model of the coupled heat transfer for duct-ventilated embankment under wind action in cold regions and its application [J]. Cold Regions Science and Technology, 2006, 45: 103-113.
  • 9Lai, Yuanming Zhang Shujuan, Zhang Luxin, et al. Adjusting temperature distribution under the south and north slopes of embankment in permafrost regions by the ripped-rock revetment [J]. Cold Regions Science and Technology, 2004, 39 :. 67- 79.
  • 10Lai Yuanming, Wang Qiusheng , Niu Fujun, etal. Three-dimensional nonlinear analysis for temperature characteristic of ventilated embankment in permafrost regions[J]. Cold Regions Science and Technology, 2004, 38 : 165-184.

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