CAJ | 학술논문

根据钻孔数据及井下新鲜煤层样品测试结果，分析了黄玉川矿4＃煤层煤岩煤质特征，以及煤层和煤层顶、底板厚度稳定性，探讨了煤层开采技术条件。结果表明，4＃煤层煤岩有机显微组分以惰质组和镜质组为主，无机显微组分以黏土矿物为主，属于低水、中灰、高挥发分的Ⅰ变质阶段烟煤。煤层厚度较稳定，顶板厚度较不稳定，煤层顶、底板岩石抗压强度在横向上变化较大。煤层开采水文、工程地质及其他开采技术条件较好。
근거찬공수거급정하신선매층양품측시결과，분석료황옥천광4＃매층매암매질특정，이급매층화매층정、저판후도은정성，탐토료매층개채기술조건。결과표명，4＃매층매암유궤현미조분이타질조화경질조위주，무궤현미조분이점토광물위주，속우저수、중회、고휘발분적Ⅰ변질계단연매。매층후도교은정，정판후도교불은정，매층정、저판암석항압강도재횡향상변화교대。매층개채수문、공정지질급기타개채기술조건교호。
According to the borehole data and the test results, the coal petrology and coal quality characters were analyzed for No. 4 coal seam of Huangyuchuan coal mine. The thickness stability for coal seam and its roof and floor beds were clarified. And then the mining technical conditions were discussed in further. The results showed that the dominant organic macerals are inertinite and vitrinite and inorganic maceral mainly is clay minerals for No. 4 coal seam. It belongs to the low water, middle ash and high volatile bituminous with primary metamorphic stage. The thickness stability is fine for coal seam and is poorer for coal seam roof. The lateral variations of rock compressive strength for coal seam roof and floor is nonuniformity. In conclusion, the hydrological, engineering geology and other mining technical conditions for coal seam are relatively good.