Abstract：Abstract: Research purposes: Freezing damage often happens in cold region tunnels. Waterproof and drainage measures are the important component to prevent freezing damage，for which the reasonable buried depth of drains is the most important factor. The depth is controlled by the temperature field， and influenced by the meteorological environment，geological environment and engineering measures. Since less research has been focused on the tunnel temperature field and buried depth of drains，this paper will deeply evaluate this problem based on practical project. The results can provide guidelines for preventing freezing damage. Research conclusions: Utilizing theoretical analysis，numerical experiment， and on - site test measures， and based upon the heat transfer theory of fluid - solid coupling , the temperature field and the buried depth have been thoroughly studied. Several conclusions have been obtained:(1 ) The time and space distribution rules of the temperature field for cold region tunnels have been reached. The relationship between the regional frozen depth and the buried depth of drains has been analyzed. (2) For this problem, thermal diffusivity is the first grade index and the density，thermal conductivity , specific heat are second grade ones. ( 3 ) The formula for the buried depth of drains has been obtained. This formula is based on the average temperature of the coldest month and considered the difference of the thermal diffusion between the surface soil and the surrounding rock of tunnel. Utilizing this formula，the design for drains in cold region can be realized more reasonably. (4)Through analyzing the monitored data from a highway tunnel in nortlieast China， the validity of tliis formula has been verified，which can provide reference and guidance for subsequent similar tunnels.
孙克国1,杨朋2,仇文革1,宋宪辉3,林立彬4,许炜萍1. 寒区隧道温度场和排水沟埋置深度研究[J]. 铁道工程学报, 2017, 34(4): 51-57.
SUN Ke - guo1，YANG Peng2，QIU Wen - ge1，SONG Xian - hui3，LIN Li - bin4，XU Wei - ping1. Research on the Temperature Field and the Buried Deptli of Drains for Tunnels in Cold Region. Journal of Railway Engineering Society, 2017, 34(4): 51-57.
2017, Vol. 34 
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