松软岩层井巷支护是煤矿遇到的技术难题。结合洼东煤矿多年的生产实践，总结了软岩巷道矿压显现及变形特征，认为巷道维护能有效地抵制二次来压，保持围岩应力平衡，由于避免同膨胀压力的正面对抗，使巷道总成本比一次永久支护成本降低，因此，巷道维护在软岩矿井生产中起着重要的作用 Soft rock roadway support is the coal mine encountered technical problems. Combined with many years of production practice in the depression coal mine, the strata characteristics of soft rock roadway are summed up. It is considered that the roadway maintenance can effectively resist secondary pressure and maintain the stress balance of the surrounding rock. Due to the avoidance of positive confrontation with expansion pressure, The total cost is lower than the cost of a permanent support. Therefore, roadway maintenance plays an important role in the production of soft rock mines