软高突出煤层超前掘进留煤加固与防突技术研究

Study on Retaining Coal Reinforcement and Outburst Prevention Technology in Advance Excavation of Soft High Outburst Coal Seam

基于软煤层高突掘进防钻防突技术,以推进距离以内的煤为研究对象,运用力学原理对其进行分析,从力学平衡点出发,提出临时加固方案,并采用一次性锚固剂解决了锚固与掘进之间的矛盾。研究结果表明,改进的施工工艺对更好地运用软煤层的高突掘进和防突技术有着重要作用。

Based on the drilling and outburst prevention technology of high outburst tunneling in soft coal seam, taking the coal within the advance distance as the research object, this paper analyzes it by using the mechanical principle,puts forward the temporary reinforcement scheme from the mechanical balance point, adopts a one-time anchoring agent and fixing agent, and solves the contradiction between anchoring and tunneling. The results show that the improved construction technology plays an important role in making better use of high outburst tunneling and outburst prevention technology in soft coal seam.