摘要
针对厚煤层动压破碎巷道,巷道顶底板变形量大,难以支护的特点,以庞庞塔煤矿107工作面为背景,通过室内试验、理论以及FLAC^(3D)数值模拟分析相结合的方法对107工作面两顺槽动压破碎巷道进行系统研究,提出了高强锚杆、长锚杆(索)、帮部锚索以及锚杆预紧力的高强支护技术和底板开卸压槽相结合的控制对策。现场试验结果表明,该控制对策在动压影响期间,能够有效控制巷道变形。
In view of the broken roadway in thick coal seam affected by dynamie pressure, the deformation of its roof and floor is large and is difficult to support taking the 107 working face of Pangpangta Coal Mine as the background,the method of combining indoor test, theory and FLAC^3D numerical simulation analysis is used to systematically study the broken roadway of return airway and transportation roadway on 107 working face, the control measures for the combination of anchor （cable）, bolting anchor cable, high strength support technology of anchor preload and the combination of floor and discharge pressure groove were introduced.Field test results showed that the control strategy can effectively control roadway deformation during influence period of dynamic pressure.
作者
苏夏收
SU Xia-shou(Lu liangshan Coal Power Co.,Ltd.,Huozhou Coal and Electricity Group,Huozhou,Shanxi,033100)
出处
《煤炭科技》
2018年第2期5-10,共6页
Coal Science & Technology Magazine
关键词
厚煤层
动压
破碎
破坏机理
FLAC^3D
控制对策
thick coal seam
dynamic pressure
crushing
failure mechanism
FLAC^3D
control countermeasures
