3_(下)303面材料巷超前沿空送巷设计与实践

Design and Practice of Advanced Deliver Roadway Along Goaf for the 3lower303 Working Face Material Roadway

为了确保3_(下)303工作面材料巷超前沿空送巷围岩稳定,通过适当加大巷道净断面积、合理确定沿空小煤柱宽度以及分区域差异化支护巷道等多方面设计举措,最终成功为3_(下)303工作面安装回采节约了2个月时间,并确保了回采过程中材料巷的整体围岩稳定,保证了回采的安全顺利进行。

In order to ensure the stability of the surrounding rock of the advance deliver roadway along goaf in the 3_(lower)303 working face material roadway,multi-faceted design optimization measures are taken,such as appropriately increasing the net sectional area of the roadway,reasonably determining the width of small coal pillars along the goaf,differentiated support roadway,and so on.Ultimately,the installation and mining of the 3_(lower)303 working face are successfully saved by 2 months,and the stability of the overall surrounding rock of the material roadway during the mining process is ensured,ensuring the safe and smooth progress of mining.