Study on reasonable layout of roadway under traditional double U in high gas coal mine
Ni Yajun1，2， Yang Jianxiong3， Bai Yu3， Wang Ruofan3
1. School of Mines， Taiyuan University of Technology， Taiyuan 030024， China; 2. Sima Coal Mining Ltd.， Lu'an Coal Mining Group， Changzhi 047105， China; 3. School of Mines， China University of Mining and Technology，
Xuzhou 221116， China
In order to solve waste of coal pillar and difficulties of roadway maintenance under traditional double U condition， difficulties and advantages of new type roadway layout method in high gas working face are theoretically analyzed. Based on analysis of numerical simulation in stress distribution characteristics of coal pillar and surrounding rock deformation law， reasonable width of large pillar is settled as 60 meters， roadway driving along goaf of small pillar is applied and reasonable width of small pillar of 2 auxiliary air return roadway is set as 5 m. As a result， roadway layout of two working face were optimized.
倪亚军，杨建雄，白 宇，王若帆. 高瓦斯矿传统双U条件下合理巷道布置研究[J]. 煤炭与化工, 2016, 39(9): 48-51，55.
Ni Yajun， Yang Jianxiong， Bai Yu， Wang Ruofan. Study on reasonable layout of roadway under traditional double U in high gas coal mine. CCI, 2016, 39(9): 48-51，55.
