三河尖-980m车场巷道破坏机理与控制技术研究

Research on Failure Mechanism and Control Technology of Roadway in Sanhejian-980m Yard

随着煤炭开采越来越向深部发展,巷道围岩压力愈来愈大,矿井全断面来压巷道的支护与维护问题显得越来越突出。本文结合三河尖矿-980m车场巷道具体地质情况,重点应用了理论分析、现场实践以及矿压观测方法,系统的论述此类巷道围岩的特征,软岩巷道破坏的特点,围岩变形的影响因素,来压巷道的支护原则及其巷道的维护方法等。针对此类巷道典型特征制定常规深井软岩巷道支护施工工艺,并因地制宜地运用到三河尖矿-980m车场巷道上来。

With the development of coal mining deeper and deeper,the surrounding rock pressure of the roadway is getting bigger and bigger,and the support and maintenance of the full-section pressure roadway in the mine is becoming more and more prominent.In this paper,combined with the specific geological conditions of the roadway of Sanhejian Mine-980m yard,the theoretical analysis,field practice and mine pressure observation method are applied.The characteristics of such roadway surrounding rock,the characteristics of soft rock roadway failure,the influencing factors of surrounding rock deformation,the support principle of the pressure roadway and the maintenance method of the roadway are discussed systematically.According to the typical characteristics of such roadway,the construction technology of conventional deep soft rock roadway support is established,and it is applied to the Sanhejian Mine-980m yard roadway according to local conditions.