摘要
为彻底摸清盘州市平关镇大坪煤矿构造发育特征及煤层特征,了解构造发育对煤层的影响程度等,以煤矿构造发育特征、煤层特征为研究对象,分析得出区域地质构造主要分为北东走向和近于东西走向两组构造,研究区地质构造主要为平关向斜西翼北段,研究区整体构造形态被F11断层分成两块,F11断层上盘为单斜构造,下盘为向斜构造。通过对煤质进行分析,得出大坪煤矿含煤地层为二叠系上统龙潭组(P_(3)l),地层总厚度232~254 m,平均厚241.40 m的结论。在该地层中上段含煤层较多,煤层间距小,结构简单;下段则含煤层较少,煤层间距大。在断层作用下煤层的厚度不均,导致煤层的缺失。
To thoroughly clarify the tectonic development characteristics,coal seam characteristics of Daping Coal Mine in Pingguan Town,Pan County,and understand the influence degree of tectonic development on coal seams,this study takes the tectonic development characteristics and coal seam characteristics of the coal mine as the research objects.The analysis shows that the regional geological structures are mainly divided into two groups:those with a northeast strike and those approximately east-west strike.The geological structure of the study area is mainly the northern section of the western wing of the Pingguan syncline.The overall tectonic form of the study area is divided into two parts by the F11 fault:the hanging wall of the F11 fault is a monoclinic structure,and the footwall is a synclinal structure.Through the analysis of coal quality,it is concluded that the coal-bearing stratum of Daping Coal Mine is the Longtan Formation(P_(3)l)of the Upper Permian,with a total thickness of 232-254 m and an average thickness of 241.40 m.The upper and middle parts of this stratum contain more coal seams with small intervals and simple structures,while the lower part contains fewer coal seams with large intervals.The coal seam thickness is uneven under the action of faults,leading to the absence of coal seams.
作者
王栋
Wang Dong(th Team of Guizhou Provincial Coalfield Geology Bureau,Panzhou,Guizhou 553500)
出处
《现代工程科技》
2025年第13期9-12,共4页
Modern Engineering Technology
关键词
煤层特征
断层
构造特征
龙潭组
coal seam characteristics
fault
tectonic characteristics
Longtan Formation
