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在矿井建设和生产期间,立井井筒起着重要的作用,要求必须具有足够的强度和良好的抗渗性能,以保证井筒安全。我国的立井冻结井壁结构经历了单层井壁—双层井壁—双层复合井壁等几个阶段的演化,井壁质量得到了非常有效的保证。该文分别从强度和抗渗性两个方面浅谈一下我国高性能混凝土井壁的发展与立井井壁的结构设计的改进。
During mine construction and production, the shaft of the shaft plays an important role, requiring that it must have sufficient strength and good impermeability to ensure wellbore safety. The vertical shaft wall freeze-wall structure of our country experienced several stages of single-well wall-double-wall-double-layer composite shaft wall evolution, the wall quality has been very effective guarantee. In this paper, the development of high performance concrete wall in China and the improvement of the structural design of shaft wall are discussed respectively from the aspects of strength and impermeability.