Application of the opposing-coils transient electromagnetic method in the survey of hidden disaster water hazard in Mining Goaf
Opposing-coils transient electromagnetic method is widely used in engineering investigation because of its strong anti-interference ability,small site restrictions,high resolution,not shielded by high resistance and sensitive to low resistance.In this work,the opposing-coils transient electromagnetic method is used to detect the underground water-rich goaf,water flowing fracture and fracture zone,and good results are achieved,which provides a reference for the management of hidden disaster-causing water in mines.