摘要
本文重点研究相邻接续面巷道布置的合理位置。以某矿为工程背景,理论分析给出了实体煤侧垂直方向上的分区:一侧采空实体煤分区、过渡区和沿底弹性区。根据巷道布置原则,将巷道在垂直方向上沿9号煤层底板布置在弹性区,在水平方向上布置在极限平衡区的低应力区域内。采用理论分析、FLAC3D数值模拟等研究方法,确定了在该工程背景下的水平方向上的合理错距为2 m。工程应用中结合现场试验对接续面进风巷采取联合支护,通过对巷道的顶底板移近量和两帮位移量进行实测,发现围岩变形量得到有效控制。
This paper study mainly on the reasonable haulage roadway position of successive panel between two adjoint panels.Relying on a mine for the project background,by the theoretical analysis,three zones in the vertical direction of the solid coal side were given:Solid coal stress zone along one side of the goaf,transitional zone and elastic zone along the floor.According to the principle of roadway layout,the roadway should be arranged vertically in the elastic zone along the floor and horizontally in the low-stress region of the limit equilibrium zone.The reasonable staggered horizontal distance between adjacent roadways for this project background was found to be 2 m by theoretical analysis and FLAC3D numerical simulation.In the engineering application,combined support was applied on the haulage roadway,and the deformation of the surrounding rock in the roof,floor and sides of the haulage roadway was effectively controlled according to the actual field test.
作者
王志强
孙中文
徐春虎
苏越
宋梓瑜
Wang Zhiqiang;Sun Zhongwen;Xu Chunhu;Su Yue;Song Ziyu(College of Resources and Safety Engineering,China University of Mining and Technology,Beijing 100083,China;Research Center of Top-Coal Caving Mining in Coal Mining Industry,Beijing 100083,China)
出处
《矿业科学学报》
2019年第1期50-57,共8页
Journal of Mining Science and Technology
基金
国家自然科学基金(51774289)
国家自然科学基金青年基金(51404270)
中央高校基本科研业务费专项资金(2011QZ06)
关键词
错层位
水平错距
极限平衡区
垂直分区
联合支护
split-level
staggered horizontal distance
limit equilibrium zone
vertical zone
combined support
作者简介
王志强(1980—),男,内蒙古呼伦贝尔人,博士,副教授,博士生导师,主要从事采矿方法和工艺、矿山岩石力学与地压控制的研究工作。Tel:13810796225,E-mail:wzhiqianglhm@126.com;通信作者:孙中文(1992—),男,河南南阳人,硕士研究生,主要从事矿山压力与岩层控制的研究工作。Tel:15510568199,E-mail:sunzhongwen273910@qq.com.
