单侯井田构造发育规律及其对煤层开采的影响

从区域构造入手，对单侯井田构造进行分析，认为井田内断层发育以走向NW—NE、落差≤5m的小型正断层为主，且主要分布于大中型构造的两侧．特别是在其弧形转折带附近往往形成“羽”状雁列的小断层密集带。断层垂向上多分布于4—7号煤层之间的厚煤层发育区，其严重破坏了煤层的连续及完整性，是影响煤层开采的最主要因素之一。井田褶皱构造相对不发育，以短轴小型背、向斜为主，均属缓波状褶曲，对煤层的开采无影响或影响较小。根据井田地质构造发育程度，对其进行预测及分区评价：井田东部为强烈的构造挤压带，以发育走向NW-近EW—NE向的大型逆掩断层为特点，构造最复杂；井田西北部是相对较轻微的构造挤压带，以发育走向NE向的逆断层为特征，构造较复杂；井田南部以发育近SN或NNW向正断层为主，构造相对简单。评价结果对矿井设计及采区与工作面布置有一定的指导作用。

Shanhou Minefield Structural Development Pattern and Influence to Coal Mining

Analyzed Shanhou minefield structure starting from tectonics, considered that the fault development in the minefield is mainly strike NW-NE, with throw ≤ 5m minor faults, and mainly distributed both sides of large and medium typed structures, especially feathered en echelon minor fault concentrated zones frequently formed near the arcuate hinge belts. Vertically mainly distributed in the thick coal seam developed zone between No.4 to No.7 coal seams, faults seriously destructed coal seam continuity and integrity, thus one of main impacting factors to coal mining. Fold structures are relatively undeveloped in the minefield, mainly minor gentle undulating folds of brachyanticlines and brachysynclines, and have no impact or minor impact to coal mining. According to structure development in the minefield carried out prediction and zonal evaluation： the eastern part is a strong compressive belt, characterized by NW -near EW -NE mega thrusts, structurally most complex; northwestern part is a relatively gentle compressive belt, characterized by NE thrusts, rather complex; southern part is mainly NS or NNW faults developed, relatively simple. The conclusion has certain guiding significance in mine design, winning district and working face laying-out.