蒙库铁矿884m主运输平硐断层综合探测

Comprehensive Detection on the Main Transportation Adit Faults of Mengku Iron 884 m

蒙库铁矿矿区处于克兰复式向斜与巴拉额尔齐斯复式背斜的接合部位,褶皱和断裂较发育。矿山开拓系统采用竖井-平硐-主斜坡道相结合的方案,在884 m水平主运输巷道掘进施工时遇到了断层破碎带、软弱夹层、岩体空洞、大型含水体等不良地质体。为准确掌握巷道掘进前方是否存在断层、断层具体位置及空间形态特征,应用综合探测方法,即在地表采用"工程地质测绘+氡气测量+CSAMT"的垂直综合探测,在地下巷道内采用"掌子面素描+TSP+GPR"的水平综合探测,对884 m主运输巷道掌子面前方断层进行了探查,为矿山安全开采提供了保障。

The Mengku iron mining area is located in the junction with Bala Earl Keith Kline synclinorium anticlinorium,folds and faults are developed. The scheme of shaft-adit-main ramp scheme is adopted by mine development system,the adverse geological body such as fault fracture zone,soft interlayer,rock hole and large bodies of water are encountered in the process of drivage construction of main haulage roadway in 884 m level. In order to obtain the information of the faults in front of the main haulage roadnay tunnel face and the location and spatial morphology characteristics of faults. The comprehensive detection method is introduced,that is to say,the method of ＂ vertically integrated exploration engineering geological mapping ＋ radon measurement ＋ CSAMT＂ is used in the surface,the method of ＂ comprehensive detection face sketch ＋ TSP ＋ GPR＂ is used in the underground tunnel so as to detect the faults in front of the main haulage roadway tunnel face in 884 m. The detection results has a guilding significance for mine safety production.