槽波勘探在采煤工作面构造探测中的应用

Application of slot wave exploration in structural detection of coal mining face

煤层内部的复杂构造会影响工作面的回采速度,甚至会造成重开切眼浪费人力物力。当存在落差较大的断层导通含水层时,往往会造成工作面透水重大安全隐患,未探查清楚盲目回采会造成采煤工作面突水事故。构造复杂的工作面回采前有必要对其内部的隐伏构造摸查清楚,通过使用合理的物探方法能够有效对采煤工作面内部构造加以控制。关中某矿某工作面内揭露多条断层,且滴淋水严重,为保证后续生产的安全,采用合理的物探方法进行探测,将探测结果与已知地质资料联合解释。最终解释工作面内断层1条,断层破碎带3个,且该断层发育横穿工作面,影响范围较大,后经钻探验证,矿方决定终止该工作面的开采,确保工作人员生命安全和财产安全。

The complex structure inside the coal seam will affect the mining speed of the working face,and even cause the reopening of the cutting hole to waste manpower and material resources.When there is a fault with a large drop leading to the aquifer,it often causes major safety hazards such as water permeability in the working face;Blind mining without clear exploration can cause water inrush accidents in the mining face.For working faces with complex structures,it is necessary to clearly explore the hidden structures inside them before mining,and the structure in the working face can be effectively controlled by using reasonable geophysical methods.Several faults were exposed in a working face of a certain mine in Guanzhong,and serious water dripping occurred.To ensure the safety of subsequent production,reasonable geophysical methods were used for exploration,and the exploration results were jointly interpreted with known geological data.Finally,one fault and three fault fracture zones in the working face are interpreted;Moreover,the fault is developed across the working face and has a large influence range.After drilling verification,the mining party decided to terminate the mining of the working face,which ensured the life and property safety of the staff.