一、前言 南大夕张煤矿的地质构造,是由东部夕张山系的侧向压力所形成的过折褶构造,由东侧起,大夕张、南大夕张、远幌三大向斜构造具有平行南北走向。各向斜的东翼均形成逆断层。现在拟采的矿区是南大夕张向斜的西翼顺层部分。以上层、主层、下层三个煤层为开采煤层,倾角的变化范围为15°～44° I. Preface The geological structure of the NanDaXiZhang coal mine is a over-fold structure formed by the lateral pressure of the eastern part of the ebb hill. From the east side, the three major syncline structures, namely, Parallel to the north-south direction. The east flanks of the synclines all form reverse faults. The mined area to be mined now is the bedding portion of the west wing of the Southern Taixizhang syncline. Above the coal seam, the main coal seam and the lower coal seam are the coal seams, and the dip angle varies from 15 ° to 44 °