本文介绍了邵武煤矿在观测钻孔中应用电磁波层析技术（即CT）探测覆岩破坏高度的研究。电磁波层析技术利用覆岩的吸收系数、介电常数和电导率等电磁参数在开采前后的数值变化，并结合岩性和地质采矿条件等进行综合解释，从而较准确地重现覆岩的地层结构和煤层开采后覆岩的破坏变化，为判定覆岩破坏高度提供更为直观、可靠的依据。 This paper introduces the application of electromagnetic wave tomography (CT) to detect the height of overburden destruction in Shaowu Coal Mine. Electromagnetic wave tomography technology makes use of the numerical changes of overburden absorption coefficient, dielectric constant and conductivity electromagnetic parameters before and after mining, combined with lithology and geology mining conditions to comprehensively explain, so as to accurately reproduce the overburden strata Structural and coal seam mining after the failure of overburden rock changes, to determine the height of overburden failure to provide a more intuitive and reliable basis.