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巷道围岩控制是井下开拓工作中的重要环节,对日后运输及生产的安全性具有很大影响。以巷道围岩塑性区为研究对象,在传统围岩控制手段的基础上提出了统一强度理论,结合实际情况研究了围岩中间应力、巷道位移、剪胀特性以及塑性区弹性应变之间的关系,根据实例分析了上述因素在巷道围岩控制中的实际应用。
Surrounding rock control of the roadway is an important link in the underground development and has a great impact on the safety of transportation and production in the future. Based on the traditional surrounding rock control measures, a unified strength theory is proposed based on the plastic zone of the surrounding rock of the roadway. The relationship between the surrounding rock intermediate stress, the displacement of the roadway, the dilatancy characteristics and the elastic strain of the plastic zone is studied. The practical application of the above factors in the surrounding rock control of roadway is analyzed based on the examples.