CAJ | 학술논문

以山东济宁二号煤矿地下开采的覆岩变形为例，采用三维地震技术手段，在数据振幅保真处理的基础上，通过地震属性分析方法对由于地下采矿活动导致的离层发育情况进行了试验研究。结果表明：综合运用三维地震常规解释和三维地震振幅斜度属性分析技术，可以初步揭示覆岩离层的形态：在三维地震常规解释中，对于新采空区产生的覆岩离层，砂泥岩的强波阻抗反射特征将遭到破坏，而老采空区会因覆岩离层的闭合仍具有强反射特征；在地震振幅斜度属性与频率属性解释中，覆岩离层将导致地震波形、频率存在严重的畸变区域，即使与新采空区相邻的老采空区，其覆岩离层也会有明显的反应。通过类比分析，推断该区的覆岩离层范围为工作面后方50～80m，延伸距离160～180m，离层发育的最大尺度1m左右，两个注浆孔证实了此次三维地震推测的离层发育区范围及岩移的准确性。
이산동제저이호매광지하개채적복암변형위례，채용삼유지진기술수단，재수거진폭보진처리적기출상，통과지진속성분석방법대유우지하채광활동도치적리층발육정황진행료시험연구。결과표명：종합운용삼유지진상규해석화삼유지진진폭사도속성분석기술，가이초보게시복암리층적형태：재삼유지진상규해석중，대우신채공구산생적복암리층，사니암적강파조항반사특정장조도파배，이로채공구회인복암리층적폐합잉구유강반사특정；재지진진폭사도속성여빈솔속성해석중，복암리층장도치지진파형、빈솔존재엄중적기변구역，즉사여신채공구상린적로채공구，기복암리층야회유명현적반응。통과류비분석，추단해구적복암리층범위위공작면후방50～80m，연신거리160～180m，리층발육적최대척도1m좌우，량개주장공증실료차차삼유지진추측적리층발육구범위급암이적준학성。
Taking the underground coal mining overburden deformation in the Jining No.2 coalmine, Shandong as an example, using the 3D seismic technical means, based on data amplitude fidelity processing, through seismic attribute analytical method, carried out underground mining caused bed separation experimental study. The result has shown that integratedly using 3D seismic conventional interpretation and 3D seismic amplitude steepness attribute technology can reveal bed separation configuration briefly. In 3D seismic conventional interpretation, to new gob area caused overburden bed separation, strong elastic impedance reflection characteristics of sandstone and mudstone will be destructed, while old gob area because of bed separation closure still have strong reflection characteris-tics. In seismic amplitude steepness attribute and frequency attribute interpretation, bed separation will cause serious seismic waveform and frequency distorted areas, even if old gob areas neighboring new gob area, their bed separation also have obvious response. Through analogical analysis, inferred that the extent of overburden bed separation should be 50~80m behind working face, extended distance 160~180m, maximum bed separation developed scale about 1m. Two grouting boreholes have verified the accuracy of bed sep-aration developed extent presumed by this 3D seismic prospecting.