关键词: 引流泄压, 低压慢渗, 注浆, 围岩变形, 监控量测, 控制技术

Abstract: Combined with engineering practice of Guo Tun coal mine in Shandong Province, through the grouting treatment of gushing water of fault in air-return roadway, the drainage and slow penetration grouting technology was put forward. This paper expounds the dynamic regularity of the deformation of surrounding rock of roadway under the condition of drainage and grouting construction, carries out related theoretical analysis, and puts forward the technical points and the corresponding suggestions for deformation control of surrounding rock. The monitoring results showed that the factors affecting the deformation of surrounding rock are the arrangement of drainage holes, the design of shallow grouting holes and grouting parameters. The former two are the main factors, and the latter is the dynamic factor. In the actual operation, two main factors can be optimized, and the grouting parameters can be adjusted dynamically to control the deformation of surrounding rock, eliminate the potentially dangerous. The application showed that the surrounding rock monitoring and control technology achieved the purpose of improving the quality of the roof, and the water plugging rate was as high as 96%. Compared with the traditional broken zone grouting technology, it has been greatly improved to ensure the effect of governance and reinforcement.