根据碱场煤矿深部矿压显现特征和三段副井围岩松动圈测试结果，提出了深部返修巷道支护方式——快硬膨胀水泥锚杆加菱形金属网支护。在总结和分析三段副井深部返修段锚网支护成功的基础上，对深部返修巷道锚网支护参数的确定提出了看法 According to the characteristics of deep underground pressure and the testing results of the loose ring of the surrounding rock of the third-stage auxiliary shaft, the support method of deep repairing roadway - quick-hardening expanded cement bolting plus rhombic metal mesh support was proposed. On the basis of summarizing and analyzing the success of bolting support in the deep repairing section of the third auxiliary shaft, the author put forward the opinion on the determination of bolting parameters in the deep repairing tunnel