摘要
为解决3105工作面矿压显现的安全隐患,基于震动波CT反演技术对3105工作面进行震动波CT探测,通过实时监测3105工作面区域的震源分布,形成高密度射线穿过煤层,生成大范围、高分辨率的波速反演云图,结合煤(岩)体内震动波速与应力的耦合关系,确定了3105工作面区域内的应力分布情况。经过微震法、钻屑法验证,震动波CT反演技术能准确反映3105工作面的应力分布,有针对性地指导工作面卸压工程。
In order to solve the hidden danger of mine pressure behavior in 3105 working face,based on seismic wave CT inversion technology,seismic wave CT detection was carried out in 3105 working face.Through real-time monitoring of source distribution in 3105 working face area,high-density rays passing through coal seam are formed,and large-scale and high-resolution wave velocity inversion cloud image was generated.Combined with the coupling relationship between vibration wave velocity and stress in coal(rock),the stress distribution in 3105 working face was determined.Verified by microseismic method and drilling cuttings method,the seismic wave CT inversion technology can accurately reflect the stress distribution of 3105 working face and guide the pressure relief engineering of working face.
作者
石建祥
李智勇
SHI Jian-xiang;LI Zhi-yong(Shaanxi Huadian Yuheng Coal Power Co.,Ltd.,Yulin 719000,China)
出处
《煤炭科技》
2021年第2期80-83,共4页
Coal Science & Technology Magazine
