基于多源遥感影像的矿区煤火探测方法  

Coal fire detection method in mining area based on multi-source remote sensing images

作　　者：黄洁 张锦[1] HUANG Jie;ZHANG Jin(School of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学矿业工程学院,山西太原030024

出　　处：《煤炭工程》2024年第7期174-180,共7页Coal Engineering

基　　金：国家自然科学基金面上项目(42171424)。

摘　　要：露天矿煤自燃造成煤炭资源浪费、破坏周边环境甚至严重威胁矿区安全生产,露天矿煤火探测具有重要意义。针对上述问题,提出了一种昼夜地表温度融合的方法,结合煤自燃引发的其他地表异常现象进行露天矿煤火探测。该方法分别获得白天与夜间的地表温度,通过代数叠加,消除太阳辐射等因素的影响,突出持续热异常区域。针对露天矿周边区域,在地表温度异常的基础上,制作沉降异常和生态异常两级带通滤波器,对地表温度异常进行滤波,整合得到研究区煤火分布特征。研究表明,昼夜地表温度融合的地表温度信息较单一时相温度探测煤火的方法更为有效,针对露天矿周边地区,昼夜地表温度融合的热红外遥感技术联合雷达干涉测量技术与遥感生态指数探测煤火的方法具有较高的可靠性和准确性。The spontaneous combustion of coal in open pit mine causes waste of coal resources,damages surrounding environment and even seriously threatens the safety production of mining area.Coal fire detection in open pit mine is of great significance.A method of day and night surface temperature fusion is proposed to detect coal fire in open pit by combining with other surface anomalies caused by spontaneous coal combustion.The method obtained the surface temperature during the day and at night respectively,and eliminated the influence of solar radiation and other factors through algebraic superposition to highlight the persistent thermal anomaly area.Based on the surface temperature anomaly,a two-stage band-pass filter of settlement anomaly and ecological anomaly is made to filter the surface temperature anomaly,and the distribution characteristics of coal fires in the study area are integrated.The research shows that the fusion of day and night surface temperature information is more effective than the single time-phase temperature detection method of coal fire.For the surrounding areas of open pit mine,the combination of thermal infrared remote sensing technology of day and night surface temperature fusion and radar interferometry technology and remote sensing ecological index method of coal fire detection has higher reliability and accuracy.

关 键 词：煤火探测 多源遥感 昼夜温度融合 温度异常 地表形变 

分 类 号：TD752[矿业工程—矿井通风与安全]