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MODERN TUNNELLING TECHNOLOGY ![]() ![]() |
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Advance Grouting Reinforcement Technology for Earth Pressure Shield Tunnelling through Upper-Soft-Lower-Hard Strata | ||||
(1. China Railway 18th Bureau Group Co., Ltd., Tianjin 300222; 2. China Railway Construction South China Construction Co., Ltd.,Guangzhou 510380) |
Copyright 2010 by MODERN TUNNELLING TECHNOLOGY
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