Due to its convenience and economical efficiency, the high-strength concrete shaft lining has been widely used in deep shaft sinking by freezing method.
深冻结井高强混凝土井壁作为一种施工方便、经济的井壁结构被广泛得到应用。
The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium.
冻结壁的安全性是深厚冲积层中冻结凿井的关键问题。
The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium.
冻结壁的安全性是深厚冲积层中冻结凿井的关键问题。
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