为保证巷道过采空区期间安全掘进及巷道围岩使用期间稳定,以平煤八矿二号井己五采区1号中部车场设备道为研究对象,综合采用理论分析、现场试验及现场监测的方法研究了管棚囊袋注浆超前支护技术对过采空区巷道围岩支护的适应性,并采用十字布点法对施工结束后的巷道表面位移进行了为期2个月的连续监测,研究结果表明:采用管棚囊袋注浆作为超前支护,可缩性支架+壁后注浆作为永久支护,具有施工速度快、支护稳定的优点,同时对巷道表面位移的监测结果表明,围岩变形得到了有效控制,顶板下沉量最大为60 mm,两帮移近量最大为130 mm,底鼓量最大为80 mm.%In order to ensure safety during driving in gob and stability of surrounding rock in service period,taking equipment roadway of No.1 middle yard as research object,this article studied the adaptability of pipe-shed and capsular bag grouting support technique for gob roadway support by the methods of theoretical analysis,field test and field monitoring,and using the method of cross distribution point continuouslly observed roadway surface displacement for two months,the study results showed that the pipe-shed and capsular bay grouting as advance supporting and the fiexible supports+backfill grouting as permanent support had the advantages of rapid driving speed and support stability,and monitoring results of roadway surface displacement showed that surrounding rock deformation was effectively controlled,the maximum roof convergence was 60 mm,the maximum displacement of side-to-side was 130 mm,the maximum floor heave was 80 mm.
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