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词汇 Ground freezing
分类 英语词汇 英语翻译词典
释义

Ground freezing

英语百科

Ground freezing

Ground freezing allowed tunnels to be excavated under an active railyard during Boston's Big Dig.  Each white lump marks the top of a deep ground-freezing tap.
Cross section of a ground freezing pipe as used in the big dig.

Ground freezing is a construction technique used in circumstances where soil needs to be stabilized so it will not collapse next to excavations, or to prevent contaminates spilled into soil from being leached away. Ground freezing has been used for at least one hundred years.

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