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文中阐述了二次高压灌浆预应力锚固的技术特点 ,将该技术应用于程潮铁矿 2 #主溜井“托斗法”整体加固方案中 ,取得了较好的工程效果 ,为解决严重垮冒主溜井结构的恢复提供了一种新方法
In this paper, the technical characteristics of prestressed anchorage with secondary grouting under high pressure are expounded. The technology is applied to the overall reinforcement scheme of “Trusteeship” of No. 2 main slide in Chengchao Iron Mine. The project has achieved good engineering results. In order to solve the serious collapse of the main slide structure Recovery provides a new way