皖北矿务局刘桥二矿自投产以来 ,回采巷道掘进虽然普遍采用沿空掘巷技术 ,但由于掘巷位置不尽合理、滞后时间不当以及支护方法不合理常常导致回采巷道支护困难 ,维护费用日趋增加。为此我们选择六五采区 6 5 5工作面风巷斜硐进行现场测试研究 ,确定了沿空巷道相对于相邻回采面的合理滞后掘进时间 ,得到了工作面沿倾向支承力分布特性 ,确定了沿空巷道的最佳位置 Since the opening of Liuqiao No.2 Mine of Wanbei Bureau of Mines, production of mining roadways has been widely used. However, due to the unreasonable position of roadway, improper lag time and unreasonable support methods, it often leads to difficulties in roadway support , Maintenance costs are increasing. For this reason, we choose the 655 mining area wind tunnel inclined borehole field test and study to determine the gob-side entry relative to the adjacent mining face reasonable hysteretic time, got along the face of the bearing force distribution characteristics, Determine the best location along the roadway