基于光纤测温系统的矿井采空区“三带”研究

发布时间：2018-01-04 11:07

本文关键词：基于光纤测温系统的矿井采空区“三带”研究　出处：《中国煤炭》2016年12期 　论文类型：期刊论文

【摘要】：针对束管测温系统存在的不足,利用光纤传感技术的优势,将光纤分布式测温系统应用于煤矿采空区,以便及时监测采空区内温度变化,准确预报采空区自然发火前期表象,将自然发火抑制在早期阶段。通过理论分析、试验测试和现场工程实践,表明光纤测温系统可以对高温点进行连续监测和定位,使定位精度误差控制在士1 m。同时,对监测数据进行分析,划分采空区"三带"范围,符合矿井实际情况,为煤矿井下安全生产提供依据,对认识煤矿灾害形成机理和重大灾害的预测预报技术的发展有很大的促进作用。
[Abstract]:In view of the shortcomings of the beam tube temperature measurement system, the optical fiber distributed temperature measurement system is applied to the coal mine goaf in order to monitor the temperature change in the goaf in time by utilizing the advantages of the optical fiber sensing technology. The early stage of spontaneous combustion in goaf can be accurately predicted, and the spontaneous combustion will be restrained in the early stage. Through theoretical analysis, test and field engineering practice. The results show that the optical fiber temperature measurement system can continuously monitor and locate the high temperature points, and control the positioning accuracy error within 1 m. At the same time, the monitoring data are analyzed and the "three zones" range of goaf is divided. In accordance with the actual situation of the mine, it provides the basis for the safety production of the underground coal mine, and promotes the understanding of the formation mechanism of the coal mine disaster and the development of the prediction and prediction technology of the major disaster.
【作者单位】：河北省矿井灾害防治重点实验室;华北科技学院研究生处;
【基金】：国家自然科学基金资助项目(U1361130) 中央高校基本科研业务费资助项目(3142015110)
【分类号】：TD752.2
【正文快照】： 随着煤矿^u采深度逐年延伸,自然发火灾害愈加严重。自然发火不但导致煤矿生产接续紧张,而且对职工的生命安全构成严重威胁,因此,一直困扰和制约着煤矿生产的发展和经济效益的提氋。煤的自燃发展过程,实质是其自身氧化速度加速的过程,其氧化速度之快,以致产生的热量来不及向

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