摘要During the operation period, soils surrounding a cross-river tunnel are under persistent disturbance owing to heat conduction, resulting in a change in the microstructure and engineering properties. Long term observations of temperatures outside of a shield tunnel segment and shallow soil temperatures are carried out, and the annual change characteristics are analyzed. A 3D heat transfer numerical model of the shallow-buried section of a cross-river tunnel is established, the measured temperature of ground surface and tunnel segment are applied as boundary conditions, and the finite difference method is used to simulate the soil temperature field. The simulation results are compared to the measured data to verify the model reliability and precision, and the characteristics of the temperature field evolution of the region surrounding the tunnel are investigated. The analysis results can be used as a reference for designers in related fields.
Abstract：During the operation period, soils surrounding a cross-river tunnel are under persistent disturbance owing to heat conduction, resulting in a change in the microstructure and engineering properties. Long term observations of temperatures outside of a shield tunnel segment and shallow soil temperatures are carried out, and the annual change characteristics are analyzed. A 3D heat transfer numerical model of the shallow-buried section of a cross-river tunnel is established, the measured temperature of ground surface and tunnel segment are applied as boundary conditions, and the finite difference method is used to simulate the soil temperature field. The simulation results are compared to the measured data to verify the model reliability and precision, and the characteristics of the temperature field evolution of the region surrounding the tunnel are investigated. The analysis results can be used as a reference for designers in related fields.
基金资助:Supported by the China Postdoctoral Science Foundation (No.2011M500187);the Natural Science Foundation of Guangdong Province (No.S2011040005245);and the Science and Technique Foundation of GEDI during 2011 (No.EV00711W)
通讯作者:
WANG Xiao-ming, xmwang8121@163.com
E-mail: xmwang8121@163.com
引用本文:
王小明, 丁蓬莱. 越江隧道周围土体温度场演化规律研究[J]. Journal of Highway and Transportation Research and Development, 2013, 7(4): 65-71.
WANG Xiao-ming, DING Peng-lai. Temperature Field Evolution of Soils Surrounding a Cross-river Tunnel. Journal of Highway and Transportation Research and Development, 2013, 7(4): 65-71.
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2013, Vol. 7 
