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介绍竖井矿山法施工前,进行沉井底部注浆加固土体,保证竖井矿山法开挖的施工安全,降低施工难度,减少破除封底混凝土风险的施工技术。
Before the vertical shaft mining method is introduced, grouting to reinforce the soil at the bottom of the open caisson to ensure the construction safety of the vertical shaft mine excavation method, reduce the construction difficulty and reduce the construction technology of breaking the risk of back concrete.