河南省宜洛煤田深部勘探区煤层特征研究

Study on coal seam characteristics of deep coal exploration area in Yiluo Coalfield,Henan Province

为了给中原经济区建设和河南经济的可持续发展提供支撑,以河南省宜洛煤田为例,分析了深部煤勘探区煤层特征,主要分析了煤层的含煤性、可采煤层以及煤岩层对比。研究得出,勘探区可采煤层共有7层。二1煤层平均厚度5.72 m,煤层结构较简单,属基本全区可采的较稳定煤层。一_(8)、四_(1)、四_(2)、四_(3)、五_(1)和七1_(煤)层为层位较稳定,结构简单,煤厚变化大,属局部可采的不稳定煤层,可采范围主要分布于勘查区中、西部。采用综合对比方法进行了煤岩层对比,主要含煤地层、二1煤层对比可靠,一_(8)、四_(1)、四_(2)、四_(3)、五_(1)和七_(1)煤层对比基本可靠,二1煤适宜动力及民用。研究可以作为宜阳煤矿建设可行性研究和初步设计的地质依据。

In order to provide support for the construction of the Central Plains Economic Zone and the sustainable development of the Henan economy,this paper takes the Yiluo Coalfield in Henan Province as an example to analyze the coal seam characteristics of the deep coal exploration area.The coal-bearing properties,mineable coal seams and coal-rock seam correlations of coal seams are mainly analyzed.The study concludes that there are 7 mineable coal seams in the exploration area.The average thickness of theⅡ1 coal seam is 5.72 m,the structure of the coal seam is relatively simple,and it is a relatively stable coal seam that can be mined in the whole area.Ⅰ_(8),Ⅳ_(1),Ⅳ_(2),Ⅳ_(3),Ⅴ_(1),andⅦ_(1) coal seams are relatively stable seams,with simple structures and large changes in coal thickness.They are locally recoverable unstable coal seams,and the recoverable range is mainly distributed in the middle and west of the exploration area.The comparison of coal and rock formations was carried out using the comprehensive comparison method.The comparison of main coal-bearing formations andⅡ1 coal seams is reliable,the comparison ofⅠ_(8),Ⅳ_(1),Ⅳ_(2),Ⅳ_(3),Ⅴ_(1),andⅦ_(1) coal seams is basically reliable,andⅡ1 coal is suitable for power and civil.The research can be used as the geological basis for the feasibility study and preliminary design of Yiyang Coal Mine construction.