The mining of coal resources in eastern China has entered the stage of deep mining, and many mines have reached the depth of 1000 meters. Different from shallow and moderate depth mining, the temporal and spatial evolution regulation of surface movement and deformation under deep mining has its particularity. Combining with the geological and mining conditions of Fengfeng mining area, this paper systematically studies the characteristics of surface movement under the condition of shallow, moderate, and near kilometer mining depth. By means of field measurement, InSAR monitoring, we get the subsidence data under different mining depth and get the relevant subsidence parameters by inversion. Through comparative analysis, the special law of subsidence under the mining depth of 1000 meters is obtained. The results show that under the condition of nearly 1000 meters mining depth, the surface movement and deformation have the characteristics of large displacement angle, small displacement deformation value, and large main influence radius. The regulation of small proportion of active period of maximum subsidence point, gentle shape of surface movement basin, and low mining adequacy are obtained. The research results provide technical references for deep mining under buildings, railways, and water bodies and provide basis and reference for scientific mining and safe recovery of coal pillars in kilometer deep mine.

中文翻译：

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1000米深部地面沉降演化：以凤峰矿区为例

我国东部煤炭资源开采已进入深部开采阶段，不少矿山已达到1000米深度。与浅、中深度开采不同，深部开采地表运动变形的时空演化规律有其特殊性。结合凤峰矿区地质开采条件，系统研究了浅、中、近千米采深条件下的地表运动特征。通过现场实测、InSAR监测，获取不同开采深度下的沉降数据，并通过反演得到相关的沉降参数。通过对比分析，得出1000米开采深度下的特殊沉降规律。结果表明，在近1000米开采深度条件下，地表运动变形具有位移角大、位移变形值小、主影响半径大的特点。得到最大沉降点活动期比例小、地表运动盆地形状平缓、开采充足度低的规律。研究成果可为建筑物、铁路、水体下深部开采提供技术参考，为千米深井科学开采和煤柱安全回收提供依据和参考。得到最大沉降点活动期比例小、地表运动盆地形状平缓、开采充足度低的规律。研究成果可为建筑物、铁路、水体下深部开采提供技术参考，为千米深井科学开采和煤柱安全回收提供依据和参考。得到最大沉降点活动期比例小、地表运动盆地形状平缓、开采充足度低的规律。研究成果可为建筑物、铁路、水体下深部开采提供技术参考，为千米深井科学开采和煤柱安全回收提供依据和参考。