双倾角工作面支架稳定性分析

Stability Analysis of Double Dip Angle Working Face Support

本文基于枣泉煤矿双倾角工作面(走向俯仰角、倾向大倾角)的特殊开采条件,通过分析支架失稳形式及其主要影响因素,对走向俯仰角及倾向大倾角等特殊开采状态下的支架失稳模型及稳定性进行分析,得到支架失稳临界角参量及其与底板摩擦系数、机采高度等指标的耦合关系,为工作面安全开采提供指导。

This article is based on the special mining conditions of the dual dip angle working face(strike pitch angle,dip large dip angle)in Zaoquan Coal Mine.By analyzing the forms of support instability and their main influencing factors,the support instability model and stability under special mining conditions such as strike pitch angle and dip large dip angle are analyzed.The critical angle parameter of support instability and its coupling relationship with indicators such as floor friction coefficient and machine mining height are obtained,which provides guidance for safe mining of working faces.