复杂顶板条件煤巷分区域支护技术

In this paper, support of Suntuan mechanized coal mining face 7215 for the project background, in-depth investigation of the face of geological occurrence conditions, and the basis of the roadway is divided into different regions. Proposed control measures and targeted control programs, supporting parameters given in detail. Engineering practice shows that through high pretensioned stress support system that can fully mobilize thestability of surrounding rock from the ability to inhibit the roof separation, after excavation of the roadway surrounding rock deformation played a very good control role in the tunnel during excavation Of rock deformation, roof separation are within reasonable range, and lay the foundation for the mining face,the industrial test successed.