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溼噴法噴射混凝土作業方法是什麼?

2016-12-06

溼噴法噴射混凝土作業方法是什麼?喷射混凝土采用湿喷机作业,混凝土由洞外拌和站集中拌料,混凝土运输车运到工作面。

噴射前處理危石,检查开挖断面净空尺寸,将岩面粉尘和杂物清理干净。喷射作业从拱脚或墙脚自下而上、分段、分片、分层喷射至设计厚度。

案例現場

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