关键词: 围岩破碎, 注浆加固, 锚索支护, 煤巷

Abstract: In order to solve the large scale and deformation of the surrounding rock, a comprehensive reinforcement scheme with high pressure grouting and strong anchor cable is proposed. By mainly cement, chemical grouting is complementary way of composite grouting, used to improve the bearing capacity of the broken coal rock, and also the anchor of crushed rock can be significantly enhanced. On this basis, the use of strong cable to strengthen support is to prevent damage and to ensure long-term stability of the surrounding rock. Mine pressure monitoring shows that the two sides convergence of the roadway was within 254mm. The roof subsidence is controlled within 125mm, and safety control of roadway.