Design and Traction Power Calculation of Non-interval Drag Pipe Nitrogen Injection for Fire Control

摘要：

Aiming at the problems of traditional buried tube nitrogen injection that the nitrogen injection spot with intervals in the space causes the failure of continuous nitrogen distribution in goaf, leading to poor inert effect, in addition, the un-recycling of the nitrogen injection pipe causes much resource waste. The nitrogen injection pipe material is always brittle, of which shear performance is better than its tensile performance. Based on this principle, new fire nitrogen injection process (rotating traction and non-interval) is designed, fundamentally solving major defects of buried tube nitrogen injection, which can realize the synchronous movement between nitrogen injection point and the workface. According to the unloading arch principle and the dynamic calculation of trenchless pipe directional crossing technology, the traction power of non-interval drag pipe nitrogen injection for fire control can be calculated and analyzed. By using a geotechnical engineering numerical simulation software, the stress distribution is simulated for the nitrogen injection pipe in the goaf of Y AN ZI SHAN mine, and the traction power is calculated based on it, which lays foundation on successful fulfilments of non-interval nitrogen injection for fire control.

关键词： nitrogen injection for fire control rotating traction trenchless pipe unloading arch principle traction power calculation

作者: Zhu Hongqing Li Feng Gao Rule Jiang Yuangang Pan Fenglong

作者单位: China University of Mining and Technology (Beijing), Room 102, Integrated Experimental Building,Ding 11＃, Xueyuan Road,Haidian District, Beijing 100083, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 622-628

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）