李家坝煤矿斜井基岩段及沿煤段围岩支护技术研究

Research on Surrounding Rock Support Technology in Bedrock and Coal Seam of Mine Main Inclined Shaft in Lijiaba Mine

针对李家坝煤矿斜井基岩段施工围岩支护问题,分析了斜井支护时锚索支护的受力模型,提出了以加长锚杆代替原设计方案中锚索支护的综合支护方案,消除了锚索在斜井支护时的不利影响,保证了李家坝煤矿斜井基岩施工围岩的稳定性。

Based on the problem of construction of surrounding rock support in bed rock of a mine main inclined shaft in Lijiba mine, analyze the force model of anchor cable supporting in inclined shaft,bring justifiability support version to use the long bolt instead of the original design of anchor cable,eliminate anchor cable in slope supporting of adverse effects,ensure the stability of the construction of surrounding rock support in bedrock of a mine main inclined shaft in Lijiba mine.