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Research on Shield Crossing the Dense Buildings in Shallow Soil Covering
Abstract:
Combine with the practice of Kunming city first-phase subway project construction, detailedly introduce the success construction experiences of shield crossing the dense buildings in the unfavorable conditions of shallow soil covering, big gradient, curve in small radius, complex geological condition and upgrade excavation etc. in the paper. Reasonable choosing the grout of synchronization grouting and the main technical parameters of shield tunneling on supporting pressure of working chamber, tunneling speed, total thrust, cutter head torque and excavation quantity etc., and strengthen the link of secondary grouting and technology management, the amount of settlement and uplift of the ground and the buildings can be effectively controlled.
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2090-2097
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Online since:
May 2012
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© 2012 Trans Tech Publications Ltd. All Rights Reserved
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