坚硬顶板采面采空区侧掘进巷道变形控制技术

Deformation Control Technology of Side Driving Roadway in Goaf of Hard Roof Working Face

针对凌志达煤矿15208工作面回采与15210工作面运输巷掘进同时作业的问题,本文根据采场支撑应力的分布规律确定了合理的掘巷时机,并采取爆破切顶方式处理坚硬顶板,降低掘进巷道所受的支承压力,进而保证掘进巷道的稳定性;同时降低了采动影响对掘进巷道的扰动,保障矿井的安全性。

Aiming at the problem of simultaneous operation of 15208 working face stoping and 15210 working face transport tunnel driving in Lingzhida Colliery,the paper determines the reasonable time of road excavation according to the distribution law of support stress in the stope,and decides to adopt the blasting roof cutting method to deal with the hard roof,so as to reduce the supporting pressure of the driving roadway and ensure the stability of the driving roadway,which reduces the disturbance of the mining impact on the driving roadway,and guarantees the safety of the mine.