摘要
高地压条件下倾斜煤层回采巷道支护技术已成为约束煤矿安全生产的难题之一。在分析总结围岩变形破坏特征和原因的基础上,提出了回采巷道顶部采用1/4圆拱形断面、巷帮采用锚索钢梁护帮支护优化方案,确定了锚、梁、网+锚索联合支护技术参数。工程实践表明,优化支护技术有效控制了围岩变形破坏。
The mining roadway supporting technology of inclined coal seam under high pressure has been becoming a problem which constraints safety production of the coal mine.Based on the analysis and summarizes on the characteristics and causes of rock deformation,supporting optimization program was proposed,that is,arch cross section at the top of mining roadway is a quarter circle,side wall protection supporting is used at two sides of roadway.Parameters of combined supporting technology of roof bolting with bar and wire mesh were also determined.Project practice proved that,the optimized technology has controlled the deformation of surrounding rock effectively.
出处
《中州煤炭》
2011年第6期47-49,共3页
Zhongzhou Coal
关键词
倾斜煤层
回采巷道
变形破坏
支护
优化设计
inclined coal seam
mining roadway
distortion destroy
supporting
optimization design
