The slip-sheet structures are quite common in each coal seam in Zhangji minefield. Comparison with normal sequential strata, slip-sheet structure causes characteristics of phase axis sparse, disorder and attenuation of reflection energy on seismic time sections. Based on the characteristics, interpreted a slip thinning band with 140m major axis. According to characteristics of near the anomaly area of seismic attribute curves may corresponds geologic anomalous bodies of minor faults or slip-sheet structure, coal seam thinning zone, extracts No.8 coal seam 2D fractal attribute curve on No.17278 working face haulage crossheading direction,interpreted the obviously anomalous sector is typical corresponding of slip-sheet structure with influencing length up to 380m. After verification, the interpreted range of coal seam thinning zone is basically tally with actual fact.%张集井田各煤层普遍发育层滑构造,与正常层序地层相比,层滑构造的存在造成地震时间剖面上的同相轴稀疏、零乱及反射波能量减弱等特征,依据该特征,解释了矿井17248工作面层内一长轴约140m的滑变薄带;根据地震属性曲线异常区附近对应着小断层或者层滑构造、煤层变溥带等地质异常体的特点,对17278运顺方向提取了8煤层二维分形属性曲线,解释其曲线明显异常段是层滑构造的典型响应,影响长度达380m,经验证解释的煤层变薄带范围与实际基本吻合.
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