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freezing method
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freezing method
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freezing method
冻结法
在井筒(隧道)开凿之前,用人工制冷的方法,将井筒(隧道)周围的不稳定地层和含水层冻结成封闭的冻结壁(围岩体),以抵抗地压,隔绝地下水和施工井筒(隧道)的联系,暂时改变井筒(隧道)周围的地质条件,然后在冻结壁(围岩体)的保护下进行掘砌(开挖)工作的特殊井筒(隧道)施工方法。
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