为查明荥巩矿区地质构造对地下水的控制规律和矿井突水的影响,基于大量地质原始资料和矿井突水资料,通过理论分析和现场实测研究表明:荥巩矿区经过先挤压收缩后伸展拉张的多期次构造演化,形成走向近EW、倾向NE的单斜构造;南以荥密背斜为地下水分水岭,其他则以断层构成阻水边界;断块掀斜的张裂作用控制着岩溶发育,呈西弱东强、垂向分带特征;褶皱构造可控制岩溶地下水的径流和富集,褶皱和断裂处突水频繁。因此荥巩矿区是一个独立水文地质单元,区域地质构造对矿区水文地质条件和矿井突水有着明显的控制作用,并依据突水机理提出相应的突水防治对策。

In order to investigate the geological tectonic in Xinggong Mining Area affected to the underground water contral law and the mine water inrush, based 0 n the large geological original information and mine water inrush information, a theoretical analysis and the site measurement study were conducted.The study results s howed that multi periodical tectonic evolutions with initial compression and later extension and tension in Xinggong Mining Area formed monoclinal tectonic with a strike closed to EW and an inclination of NE.In the south part of the mining area, Xingmi anticline was the watershed of the underground water and in other parts, the faults fo rmed the water isolated boundary.The tilting tension role by the fault block controlled the karst development and would have the features of west weak, east strength an d vertical zoning.The fold tectonic could control the runoff and enrichment of the karst underground water and the water inrushes frequently occurred in the fold and fail ures.Thus Xinggong Mining Area was a individual hydrogeological unit and the regional geological tectonic could have obvious control function to the hydrogeological C ondition and mine water inrush in the mining area.Finally according to the analysis on the water inrush mechanism, the precautionary countermeasures were provided t 0 the water inrush caused by failure tectonic.

国家重点基础研究发展计划(973计划)资助项目(2007CB209400)；