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| SIMULATION STUDY ON DEFORMATION CHARACTERISTICS OF GROUND SURFACE IN HORIZONTAL FREEZING CONSTRUCTION OF METRO TUNNEL |
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Abstract Freezing construction is an auxiliary method in soft and water-bearing ground. The horizontal freezing construction was firstly applied in Dabeiyao Station of Beijing metro tunnel. On the basis of the prototype engineering and the simulation theory，a set of physical model test system was established，and the freezing and thawing phenomena were studied by experiments. In the meantime，studies on the deformation of ground surface in both freezing and thawing cases were conducted. The empirical formula and the variation law are presented in the paper.
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Received: 22 November 2002
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MAO Yuting1, 2, HE Manchao1, 2, LIU Fangzhou3, BAI Xing4, YANG Xiaojie1, 2, TAO Zhigang1, 2*. Development and application of a large-scale physical model system for tunnel creep testing[J]. , 2026, 45(6): 1627-1638. |
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