摘要
为新安煤田后期远景规划和下一阶段的勘查工作提供必要的资料,分析了河南省新安煤田郁山井田深部煤层及工程地质特征,研究得出,研究区的可采煤层为二1煤层,属大部分可采煤层,位于二叠系下统山西组下部,煤厚0.00~3.61 m,平均1.47 m,煤层结构简单,煤层的稳定程度为较稳定;研究区内构造中等,煤层顶底板较弱,对矿床开采有一定的影响,工程地质条件属中等,研究区地温梯度一般在1.33~1.99℃/(100 m),全区平均地温梯度值为1.61℃/(100 m),为地温正常区。
To provide necessary data for the future planning of Xin'an coalfield and the exploration work in the next stage,analyzes the deep coal seams and engineering geological characteristics of Yushan minefield in Xin'an coalfield,Henan province,and studies that the minable coal seams in the study area is the No.21 coal seam,which belongs to the majority of the minable coal seams and is located in the lower part of the Shanxi formation in the lower Permian,with a coal thickness of 0.00-3.61 m and an average of 1.47 m.The coal seam structure is simple and the stability of the coal seam is relatively stable;the structure in the study area is medium,and the roof and floor of the coal seam are weak,which has a certain impact on the mining of the deposit.The engineering geological conditions are medium.The geothermal gradient in the study area is generally 1.33-1.99℃/(100 m).The average geothermal gradient in the whole area is 1.61℃/(100 m),which is a normal geothermal area.
作者
高碧峰
王果
GAO Bifeng;WANG Guo(Henan Fifth Geological Exploration Institute Company,Zhengzhou 450000,China)
出处
《煤炭技术》
CAS
2024年第4期105-108,共4页
Coal Technology
基金
河南省2013年、2016年度地质勘查基金项目(201804)。
关键词
新安煤田
郁山井田
可采煤层
煤厚
煤层结构
工程地质条件
Xin'an coalfield
Yushan minefield
minable coal seam
coal thickness
coal seam structure
engineering geological conditions
