Exothermic process of cast-in-place pile foundation and its thermal agitation of the frozen ground under a long dry bridge on the Qinghai-Tibet Railway |
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| Authors: | Ya-ping Wu Jian Guo Chun-xiang Guo Wei Ma and Xiao-jun Wang |
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| Institution: | (1) Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USA;(2) Southwest Research Institute of China Railway Engineering Limited Company, Chengdu, 610031, China |
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| Abstract: | A number of dry bridges have been built to substitute for the roadbed on the Qinghai-Tibet Railway,China.The aim of this study was to investigate the exothermic process of cast-in-place (CIP) pile foundation of a dry bridge and its harm to the stability of nearby frozen ground.We present 3D heat conduction functions of a concrete pile and of frozen ground with related boundaries.Our analysis is based on the theory of heat conduction and the exponent law describing the adiabatic temperature rise caused by hy... |
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| Keywords: | Exothermic process of hydration heat Cast-in-place (CIP) pile foundation Dry bridge Thermal agitation Frozen ground Qinghai-Tibet Railway |
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