摘要
为了分析综采面受采动影响的采空区上方覆岩运移规律及地表沉降机理,以一缘煤业150112工作面采掘过程中的地表沉降为研究对象,通过综采工作面“三带”理论计算确定了垂向垮落带高度为32.30~39.98 m,并结合瞬变电磁法和合成孔径雷达进行综合探测。结果表明,地表沉降和采掘活动存在直接联系,沉降速率经历初始缓沉向急剧增加变化;利用解析法确定了采煤沉陷影响范围L=109.35~115.85 m,地表沉降持续时间为2.74 a,目前沉降过程趋缓但并未达到极限平衡状态。研究结果为矿区地表环境治理和防治提供了技术支撑,也为矿井的地表沉降评价提供了参考。
In order to analyze the movement law of overlying strata and the mechanism of surface subsidence above the goaf affected by mining in the fully mechanized mining face,the surface subsidence during the mining process of the 150112 working face in the Yiyuan coal industry was taken as the research object.The height of the vertical collapse zone was determined to be 32.30~39.98 m through the calculation of the“three zones”theory of the fully mechanized mining face.Combined with the comprehensive detection of transient electromagnetic method and synthetic aperture radar,the results show a direct connection between surface subsidence and mining activities,and the subsidence rate experienced a rapid increase from the initial slow subsidence.The analytical method was used to determine the impact range of coal mining subsidence at L=109.35~115.85 m,and the duration of surface subsidence was 2.74 years.Currently,the subsidence process is slowing down but has not reached the limit equilibrium state.
作者
胡良
HU Liang(Heshun Yiyuan Coal Industry Co.,Ltd.,Shanxi Lu’an Group,Jinzhong 032700,China)
出处
《陕西煤炭》
2025年第12期132-136,共5页
Shaanxi Coal
关键词
采动影响
地表沉陷
覆岩运移
综合物探
环境治理
mining impact
surface subsidence
overburden migration
comprehensive geophysical exploration
environmental governance
