永城市顺和西井田构造复杂程度及煤层评价研究

为了满足顺和西井田探矿权转采矿权需要，分析了井田构造复杂程度，主要研究了褶曲、断层、小构造发育程度以及岩浆岩，得出，井田地质勘查类型是二类Ⅱ型，构造总体形态为一复式背向斜。断层构造和小褶曲较发育，构造复杂程度为二类中等构造。并对二煤层、三煤层进行了评价，得出，主勘的二2煤层大部分可采，属较稳定煤层。三4、三2煤层属不稳定煤层，局部可采，煤类有无烟煤、贫煤，均可用于动力用煤及民用燃料。煤层局部受岩浆侵入影响，变质为天然焦现象，井田煤层稳定程度属Ⅱ型（较稳定煤层）。研究为矿井建设可行性研究和初步设计提供地质依据。

Study on structural complexity and coal seam evaluation of Shunhe West Minefield in Yongcheng City

In order to meet the needs of converting exploration rights to mining rights in the Shunhe West Minefield，the complexity of the mine field structure was analyzed，and the development degree of folds，faults，small structures and magmatic rocks were mainly studied.For a duplex backslope.Fault structures and small folds were relatively developed，and the structural complexity was a second-class medium structure.The second and third coal seams were evaluated，and it was concluded that most of the second and second coal seams in the main exploration can be mined，and they were relatively stable coal seams.The three 4 and three 2 coal seams were unstable coal seams，which could be partially mined.The coals included anthracite and lean coal，which could be used for power coal and civil fuel.The coal seam was partially affected by magma intrusion，and the metamorphism was natural coke phenomenon.The stability of the coal seam in the mine field was type Ⅱ （relatively stable coal seam）.The study provided geological basis for mine construction feasibility study and preliminary design.