摘要
轩岗矿区焦家寨井田位于宁武煤田东北部,构造位置上处在山西块体北部中段、吕梁山凸起和恒山-五台山隆起之间,属于宁(武)-静(乐)向斜组成单元之一,本井田地处该向斜东北仰起端的东南翼上。经地面勘察及井下揭露,井田发育有两组断层,一组与地层及煤层倾向一致,另一组与煤层倾向相反;上、下煤组中的断层产状相近,但互不连通,发育程度也有差异;井田内岩层层面上的滑动痕迹随处可见,层间断层发育,综合评价井田地质构造复杂程度为中等-复杂。由于井田构造断层发育,将成为现代化机械采煤的重大障碍,直接影响矿井生产,因此加强断层预测工作,对矿井建设及生产具有一定指导意义。
The Jiaojiazhai minefield,Xuangang mine area is situated in northeastern part of the Ningwu coalfield.The tectonic setting is in the middle sector,northern part of the Shanxi block,between the Luliang doming and Hengshan^Wutai uplift,one of units in the Ningwu-Jingle syncline,while the minefield is just on the syncline＇s southeast limb of the northeast elevated end.Based on the surface investigation and underground revealed data,two sets of fault developed in the minefield,one set is accordance with strata and coal seam dips,another quite the reverse.Occurrences of fault in upper and lower coal groups are similar,but non-communicating each other,and different in degree of development.Sliding striation can be seen on strata bedding surface everywhere in the minefield,and formed interlayer gliding faults.Structural complexity of the minefield belongs to medium-complex grade.Owing to well developed faults,seriously obstructed modern fully mechanized mining,and can directly impact the coalmine production.To strengthen fault forecasting works,have certain guiding significance to mine construction and production.
出处
《中国煤炭地质》
2012年第4期27-30,共4页
Coal Geology of China
关键词
构造特征
形成机制
焦家寨井田
轩岗矿区
structural feature
forming mechanism
Jiaojiazhai minefield
Xuangang mine area
作者简介
丁建新（1969-），1992年毕业于中国矿业大学水文地质工程地质专业，工程师，长期从事水文地质勘探与施工管理工作。
