【摘要】 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更多还原

【Abstract】 This paper expounds the technical characteristics of prestressed anchor by secondary high pressure grouting.This technique was applied in the program of the reinforcement of main ore pass and acquired better effect at Chengchao Iron mine.It provided a new method for the structural resumption of severe collapse of main ore pass.更多还原