摘要
采用数值模拟方法,分析了平煤四矿新建进风井、回风井井筒在小保护煤柱条件下的采动受力、变形规律;研究了新建井筒的抗变形技术,包括整体规划、柔性措施和刚性措施。实践证明,新建井筒在小煤柱保护条件下,采用抗变形技术措施取得了良好的技术、经济效果。
Combined with two cases of new-built intake and return-air shaft with anti-deformation technology used in the 4th colliery of Pingdingshan coal mining group,force and deformation law of new shaft protected by coal pillar of small size is analyzed by numerical simulation.The anti-deformation technology of new shaft is studied,and comprehensive planning,flexible and rigid measures used to absorb and resist strata deformation are included.It is stated by mining practice that good technical and economical effects on new shaft protected by coal pillar of small size with anti-deformation are achieved.
出处
《中国煤炭》
北大核心
2011年第3期57-59,118,共4页
China Coal
基金
国家自然科学基金项目(51074089)
关键词
井筒支护
小保护煤柱
柔性支护
刚性支护
shaft support
coal pillar of small size
flexible support
rigid bracing
