通过分析华晋沙曲煤矿已完成24207采区采用巷旁充填沿空留巷存在的缺陷和不足,结合相邻24208回采区地质条件及原有掘进的巷道现存状况,对24208回采区提出了锚柱网预支撑袋铸混凝土沿空留巷技术,并进行了支护试验和矿压监测分析。结果表明:应用锚柱网预支撑袋铸混凝土隔墙支护技术,巷旁预支撑构件HT锚柱早期及时切顶卸压能够在留巷过程中有效控制巷道变形,提高沿空留巷围岩稳定性,优化了沿空留巷支护结构、支护参数及施工工艺,确保工作面安全高效回采,可供类似条件沿空留巷支护借鉴。 Based on the analysis of the defects and shortcomings in the 24207 mining area of ​​Huaxin Shaqu Coal Mine that has been completed with the use of roadside filling for gob-side entry retaining and the geological conditions of the adjacent 24208 mining area and the existing existing tunneling conditions, Pillar net pre-support bag cast-in-road technology for gob-side entry retaining, and support tests and mine pressure monitoring and analysis. The results show that the application of prestressed pillars of cast - in - place concrete piles to support the wall of cast - in - place concrete partitioning and early relief of HT anchor column can effectively control the deformation of roadways and improve the stability of surrounding rock during gob - side entry maintenance It optimizes the support structure, supporting parameters and construction technology of gob-side entry retaining to ensure the safe and efficient mining face, which can be used for the gob-side entry retaining with similar conditions.