谢李煤矿绞车房峒室及绞车基础修复加固技术

Rockbolt Cable & Rockbolt Grouting Combined Reconditioning Technology Applied in the Winch House and Winch Foundation in Xieli Coal Mine

针对谢李煤矿-312 m暗主立井绞车房峒室和绞车基础损坏情况,分析破坏原因,采取锚索锚注联合加固,用锚注充填围岩裂隙提高围岩自身承载强度,改变绞车基础共振频率;普通锚索预紧加固峒室顶板,超长锚索预紧加固绞车基础,施工速度快,费用低,成功修复加固了受到破坏的峒室和基础,效果很好。

In terms of the destroy of the winch house and winch foundation at - 312 m under- shaft in Xieli Coal Mine, the breakage causes of them are analyzed and the rockbolt cable and rockbolt grouting combined reconditioning teahnology is applied - using the method of rockbolt grouting to fill the rock fissure to improve the self- bearing strength and change the resonance frequency of the winch foundation, using the common rockbolt cable to tighten and reinforce the roof and using the lengthened rockbolt cable to tighten and reinforce the winch foundation. With this method, the destroyed foundation is reinforced successfully, and has been proved effective and saving.