关键词: 采动影响, 极软煤岩, 现场测试, 变形特征, 注浆加固

Abstract: This paper analyzed deformation characterisitics according to roadway features and indicated that low strength，high stress，initial low support strength and rigidity were main factors which result in roadway failure on the basis of geological test. The roadway control technology including prestress anchoraging，the grunting reinforcement technique was put forward. Field test showed that The max convergence between the two sidewalls was 35 mm and the max convergence between the roof and floor was 19 mm，deformation of surrounding rock has been brought under effective control，roadway maintenance was almostavoided.