With the development of economy, the coal as main energy demand is becoming more and more huge, coal as the main production in the coal industry is also facing the deep development of the problem, with the increase of excavation depth, roadway supporting faces many difficulties, in order to improve the support strength, enhance security, we need to analyze the application of self drilling hollow bar support in coal mine internal. 

Self drilling hollow bar is a direct acting within the surrounding rock of roadway,it is different from the old ways such as wood beams , in other words, it is from the past passive support on the outside of the rock into the internal active support, so that we can reduce the deformation of roadway, improving the bearing capacity of self drilling hollow bar support. 

Sinorock hollow bar system always committed to supply low cost, high efficiency, energy saving and environment-friendly products for global customers. We are confident for new challenges of future development and we are keeping improve our quality and service as well as management for better serving our customers and payback to the society. 

The method of Sinorock stabilizes unstable slope surface using the combination of hollow bars and wire ropes. 

By tightening wire ropes, it is possible to hold back the loosened slope ground so that small scale surface sliding will be prevented.