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在大量实测、实验室内系统的岩石力学试验和理论计算分析的基础上，本文简要论述了极软岩动压巷道围岩的大变形机理和特征，介绍了近几年来在铁法矿矿区小康矿极软岩巷道控制攻关研究中形成的新技术及其原理和新技术实施后的效果
Based on a large number of measured and laboratory rock mechanics tests and theoretical calculation and analysis, this paper briefly discusses the mechanism and characteristics of large deformation of surrounding rock in soft rock roadway with ultra-soft rock. Introduced in recent years, New technology and principle formed in research of mine soft rock roadway control and effect of new technology after implementation