煤矿切顶卸压沿空成巷无煤柱开采技术研究与应用

Research and Application of Roof Cutting and Pressure Releasing Roadway Formation Mining Technology without Coal Pillar in Coal Mine

切顶卸压成巷技术是我国煤矿开采过程中重点关注的问题之一。这种新技术不仅可以解决包括近距离煤层群开采的问题,并及时应对突出和发火威胁工作面等的地质条件,以此来更好地进行切顶卸压成巷技术的实践探索。本文结合实践经验,全面分析在多种工程条件下的切顶卸压沿空成巷技术体系的建立,以便能够为井下工作煤矿开采奠定更好的实践基础。

The roof cutting and pressure releasing roadway formation technology is one of the key issues in the process of coal mining in China.This new technology can not only solve the problems including the mining of close-range coal seams,but also deal with geological conditions such as outburst and fire threats to the working face in time,so as to better carry out the practical exploration of roof cutting,pressure relief and roadway formation technology.Combined with practical experience,this paper comprehensively analyzes the establishment of roof cutting,pressure relief and gob-side entry-forming technology system under various engineering conditions,so as to lay a better practical foundation for underground coal mining.