摘要
从解决现场实际问题出发,针对综放工作面异形煤柱特点,有针对性地设计和采用锚杆、锚索和临时支柱等控制措施,对需要保护的巷道进行机理明确的综合加固与控制;采用多种监测技术手段,对留巷在不同煤柱宽度处围岩的压力、变形和破坏进行了现场监测,揭示了不同宽度煤柱留巷在采动影响下沿倾斜和走向方向岩层压力分布、巷道围岩移动变形与破坏的演化规律,取得了良好的支护效果,并为今后类似条件下的工程设计、施工和管理提供了科学依据。
From the point of dealing with the practical problem, aimed at the characteristics of full mechanized working face coal-pil- lars, targeted design and adopt bolt, cable and temporary pillars and any other control measures, made a clear mechanism of integrated strengthening and control for protecting roadway needs ; used a variety of technical means, made on - site monitoring for left drift in dif- ferent coal pillar width rock pressure, deformation and destruction, revealed the different coal-pillar width left drift under the influence of mining tilt and move along the direction of rock pressure distribution, movement and deformation of surrounding rock and the destruc- tion of evolution, got the best supporting effect, and provide a scientific basis for future engineering design, construction and manage- ment that under similar conditions .
出处
《煤》
2009年第3期9-12,共4页
Coal
关键词
综放工作面
异形煤柱
护巷技术
锚杆支护
采动影响
full mechanized working face
heteromorphism coal -pillar
entry protection technology
bolt supporting
mining-induced influence
