No. 1 Mine of Pingdingshan Tian’an Mining Industry Corporation Ltd. had mined for 55 a, mining gradually shifted to deep, with increasing mining pressure and deep rock tunnel supporting technology problems. Based on this problem, from objective geological conditions, rock mechanics properties, the drivage construction technology, the subjective aspects of rock damage reason was analyzed, spray anchor net cable, grouting supporting technology solution was put forward, which effectively controlled the damage of mine rock deformation in roadway, saved the lane repair costs, ensured the safety in production.
