Y型通风高抽巷合理布置及围岩控制研究

为了研究沿空留巷侧高抽巷预留下来构成Y型通风系统的可行性，以朱集矿1112(1)工作面工程地质条件为背景，通过现场调研、理论分析、数值模拟和现场工业性试验等手段，对高抽巷合理布置及围岩稳定性进行了研究。结果表明：高抽巷应布置于11-2#煤层上方15～35m处的砂质泥岩中，且高抽巷与轨道平巷之间不同水平距离a取最优值为20m|高抽巷采用“U型棚+锚索”联合支护，且锚索选用一次支护最大化方案|现场矿压观测和锚索工作阻力监测结果表明高抽巷围岩加固效果良好，锚索较为均衡地发挥了其支护效能，确保了矿井的安全高效生产。

Study on Reasonable Layout and Surrounding Rock Control of High Extraction Roadway under Y-type Ventilation Condition

In order to study the feasibility of Y-type ventilation system formed by reserving high extraction roadway along goaf side, this paper studies the rational layout of high extraction roadway and the stability of surrounding rock by means of field investigation, theoretical analysis, numerical simulation and field industrial test, taking the engineering geological conditions of 1112(1) working face of Zhuji Mine as background. The results show that the high-pumping roadway should be arranged in the sandy mudstone 15-35 m above the 11-2# coal seam, and the optimum value of different horizontal distance between the high-pumping roadway and the track roadway is 20 m; the high-pumping roadway is supported by U-shaped shed and anchor cable, and the anchor cable is supported by the maximum scheme of one time support; the on-site mine pressure observation and the anchor cable resistance monitoring knot The results show that the surrounding rock reinforcement effect of high extraction roadway is good, and the anchor cables play a more balanced role in its support efficiency, ensuring the safe and efficient production of the mine.