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（中鐵十八局集團(tuán)有限公司， 天津 300222 ）

［摘要］處于季節(jié)性嚴(yán)寒凍土地區(qū)的通灌鐵路隧道施工后，在冬季排水溝凍凝造成100多m隧道結(jié)成厚冰，通過觀測(cè)和研究，提出并在隧道側(cè)下部開設(shè)平行泄水洞，以間隔橫洞與水溝連通，解決了已施工隧道深度凍冰問題。

［關(guān)鍵詞］季節(jié)性凍土； 鐵路隧道； 泄水洞； 深度凍冰

中圖分類號(hào)： U455.411 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)： 1002-848X(2015)S2-0085-05

作者簡(jiǎn)介：董利民，學(xué)士，高級(jí)工程師， Email：sbjxcb@163.com。 

Research of the solution of seasonal cold permafrost tunnel construction technology of frozen depth

Dong Limin

(China Railway 18 Bureau Group Co., Ltd., Tianjin 300222, China)

Abstract： After Tongguan Railway Tunnel located in the region with seasonal severe-cold frozen earth, has been executed, water over 100m long in the tunnel froze to be thick ice in winter because of water-discharging ditch being frozen. By observing and studying, it is raised and executed to make parallel water-discharging hole at the side-lower part of the tunnel to space cross hole and water ditch, which solves the problem on deep frozen ice of executed tunnel.

Keywords： seasonal frozen earth; railway tunnel; water-discharging hole; deep frozen ice