地质构造对煤层厚度影响研究  

Research on Influence of Geological Structure on Coal Seam Thickness

作　　者：陈继福 CHEN Ji-fu(College of Building and Surveying Engineering, Shanxi Datong University, Datong 037009, China)

机构地区：[1]山西大同大学建筑与测绘工程学院

出　　处：《煤炭技术》2019年第6期80-82,共3页Coal Technology

摘　　要：以曹村煤矿为背景,利用理论分析和现场实践等方法,对曹村煤矿地质构造对该矿煤层厚度影响状况进行研究。研究结果表明:由于在曹村煤矿浅部是单斜构造,在该矿的深部构造是紧密褶皱及大幅度倒转褶曲,在燕山构造早期形成了缓倾角断层和大角度逆冲断层,而在燕山构造晚期则形成大量高角度正断层。在正断层的引张拖拽作用下,正断层附近上下盘面煤层厚度变薄,而在逆断层附近盘面,由于挤压聚集形成厚煤层。在相对封闭的褶皱带内,处于该区域的煤层由于受到挤压而发生塑性流变,形成"断续"状煤层;而在倒转褶曲区域附近,处在正常翼的煤层由于受压而变薄,处于倒转翼煤层仍然维持稳定性较好的状态,煤层厚度较厚。In Caocun coal mine as the background, this paper by using the methods of theoretical analysis and field practice, the Caocun coal mine geological structure situation to study the effects on the mine coal seam thickness. The results show that due to the shallow coal mine is a monoclinal structure in Caocun, in the deep structure of the mine is close fold and greatly overturned fold, formed in the early yanshan tectonic slope surface.slope, fault and large angle thrust fault, while in the late yanshan tectonic form high angle normal fault. Under the extension and drag and drop function of normal fault, near normal fault disk thin coal seam thickness, and near the thrust disk, due to the extrusion formation of thick coal seam. Within a relatively closed fold belt, in the area of coal seam due to squeeze plastic flow, formed "intermittent" coal seam;and back in the fold area nearby, in normal wing coal seam thinning due to compression, and in reverse wing still maintain stability good condition of coal seam, the thick coal seam thickness.

关 键 词：层滑构造 断裂构造 褶皱构造 煤层厚度 

分 类 号：TD163[矿业工程—矿山地质测量]