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文章对软岩的结构特征与分类、注浆加固机理进行了介绍,对公路隧道软岩施工中的超前小导管注浆加固技术,从加固机理、注浆必要性、施工工艺等方面作了阐述。
This paper introduces the structural characteristics and classification of soft rock and the mechanism of grouting reinforcement. The advanced small conduit grouting reinforcement technology in soft rock construction of highway tunnel is elaborated from the aspects of reinforcement mechanism, necessity of grouting and construction technology .