瞬变电磁法不同工作装置在强干扰区的综合应用

Comprehensive application of different TEM working devices in the strong interference zone

目前瞬变电磁法勘探广泛运用在煤矿系统,主要解决地下水的问题。随着科技的发展和进步,瞬变电磁法勘探仪器大致分2类,国外仪器一般采用大功率、大线框的大定源框内回装置;国内仪器一般采用小功率小线圈、低电压、高电流的重叠回线装置。在作业过程中,瞬变电磁法发射线框与接收设备受电磁干扰较为严重,不同的工作装置优势不同,抗干扰能力不同。通过对山西潞安集团李村矿的工作研究,证明了采用不同工作装置在高压线附近进行勘探,可起到互补的作用,达到勘探的目的。

At present,transient transformation magnetic method is widely used in coal mine system to mainly solve the problem of groundwater.With the development and progress of science and technology,transient transformation magnetic exploration instruments are roughly divided into two categories.Foreign instruments generally use large source devices with large wire frame;domestic instruments generally use low power low coil,low voltage and high current overlapping return devices.During the operation,the transient electromagnetic emission wire frame and the receiving equipment are seriously affected by electromagnetic interference,and the different working devices have different advantages and different anti-interference capabilities.Through the work research of a mine project in Shanxi Province,it was proved that different working devices to explore near the high-voltage lines can play a complementary role and achieve the purpose of exploration.