摘要
利用FLAC3D数值模拟技术,分析了平沟煤矿0908综采工作面煤壁前方卸压带、集中应力带发生的应力、应变及位移等,发现了顶板初次来压时煤壁前方应力变化情况及变形规律,找出了在卸压带煤层透气性增大的原因,为卸压带瓦斯抽放提供了科学的依据。
The stress,strain and displacement in the release zone and concentration zone in front of the coal wall at 0908 fully mechanized working face in Pinggou Coal Mine are analyzed by using FLAC3D numerical simulation technology,the stress change conditions and deformation regularity in front of the coal wall as the first coming roof pressure are discovered,and the reason of increasing permeability at releasing stress zone of coal seam is found out to provide the scientific basis of gas drainage in releasing stress zone.
出处
《煤矿机电》
2010年第6期32-34,共3页
Colliery Mechanical & Electrical Technology
