大体积混凝土衬砌
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mass concrete lining
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In the case that the pilot bore of the lock gate shaft was fully blocked by the rock mass, anchors have been combined with concrete to ensure the safety of subsequent side clearing and lining.
在闸门井导井被岩体完全封堵的情况下，为确保后期刷帮及衬砌安全，采用锚杆和砼结合对闸门井进行锁口。
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