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《Chinese Journal of Underground Space and Engineering》 2009-01
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The Influencing Factor of the Temperature Field of Cross-passage Construction by Freezing Method in Double-Deck Road Tunnels

HU Xiang-dong1,2,XIAO Zhao-yun3,MAO Liang-gen4(1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,P.R.China; 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,P.R.China;3.Institute of Geotechnical Engineering,College of Civil Engineering,Huaqiao University,Quanzhou 362021,P.R.China; 4.China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430064,P.R.China)  
The Cross-river Tunnel of the East Fuxing Road in Shanghai is the first double-deck tunnel in China.Horizontal Freezing Method was used to construct the cross-passages monitored with a system of information construction.Analyzing the monitored data in details,it is shown that the layout of freezing pipes and the heat radiation of tunnel lining are two important factors affecting the frozen soil's shape.The frozen soil's shape can be divided into three zones according to the layout of freezing pipes and the heat radiation of tunnel lining.Through defining the radiating coefficient of the tunnel lining,the influencing degree and dimension affecting the frozen soil behind the tunnel lining due to the heat radiation are discussed.The significant conclusions obtained in this paper provide a good reference in guiding future design and construction in similar conditions.
【Fund】: 国家自然科学基金资助项目(50578120)
【CateGory Index】: U455.4
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