Inner Mongolia Mengtai Buliangou Coal Industry Co. , Ltd.
Mine Safety Branch, China Coal Research Institute

针对特厚煤层综放开采覆岩破坏剧烈、地表沉陷规律不明、地表塌陷难以控制等关键问题,以不连沟煤矿F6207和F6211工作面为研究对象,利用TSX和Sentinel-1数据进行多源观测融合的垂直沉降处理,通过偏移跟踪计算出工作面地表下沉范围值,从而得到了整个工作面的变形场。根据地表变形范围与地下开采范围计算基于InSAR多源监测的短期动态开采影响角,建立了基于多元信息融合技术的多维地表沉陷监测体系,突破了以往常规地表移动观测单一布“点”或“线”的局限性。结果表明,InSAR多源融合监测技术能有效提高地表残余变形监测的精度,解决了黄土沟壑区特厚煤层高强度开采地表沉陷与覆岩破坏规律实测难题。

Aiming at the key problems such as severe overburden failure, unclear surface subsidence law and difficult control of surface collapse in fully mechanized caving mining of extra-thick coal seam, taking F6207 and F6211 working faces of Buliangou Coal Mine as the research objects, the vertical subsidence processing using TSX and Sentinel-1 data was carried out by multi-source observation fusion. The subsidence range of the working face is calculated by migration tracking, and the deformation field of the whole working face was obtained. The short-term dynamic mining impact angle based on InSAR multi-source monitoring was calculated according to the range of surface deformation and underground mining. A multidimensional surface subsidence monitoring system based on multi - source information fusion was established, breaking through the limitations of traditional surface movement observation with single “ point” or “ line”. The results show that the proposed technology can improve the monitoring accuracy of surface residual deformation, and solve the problem in measuring the surface subsidence and overburden failure law of extra-thick coal seam high intensity mining in the loess gully area.

国家自然科学基金项目(52104196);中国煤炭科工集团有限公司科技创新创业资金专项项目(2019-ZD004)

兰天龙, 王东昊, 孙兴宇, 等. 多源融合监测技术在特厚煤层高强度开采地表沉陷实测中的应用 [J]. 煤炭工程, 2023, 55(6): 128-133.