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IN-SITU TEST ON CONSTRUCTION EFFECT WITH FREEZING METHOD FOR FAULT-CROSSING FRAGMENTATION ZONE IN
METRO TUNNEL
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Abstract When crossing the Qingquanjie fault fragmentation zone in Guangzhou metro tunnel，the application of freezing method to construction of the connected aisle for metro project is introduced．During the construction，the stress and deformation of supporting structure，tunnel deformation constringency，ground displacement，stress of surrounding rock，stress of steel grille，the deformation of the ground surface in the course of freeze and thaw are tested. On the base of testing result，the stress and deformation of structure and environment soil are put forward studied. The laws of the survey results are examined. Finally，based on these studies，some suggestions are for guiding the construction about the freezing method and construction. The results can be used for reference of similar projects.
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Received: 17 January 2008
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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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