利用可控源音频大地电磁法勘探富水陷落柱

Water-Rich Subsided Column Investigation through the Use of Controlled-Source Audiomagnetotellurics

河北某矿区内水文地质条件复杂,含水层多,富水性强,断层裂隙发育,电阻率与岩性、构造相关性强。在可控源音频大地电磁法施工中采用赤道偶极装置,利用PHOENIX公司的V6-A电磁测深仪,测量Ex和Hy,经对采集的原始数据进行剔值、去噪、滤波、校正处理,及反演成像,得到了每条测线反演的电阻率数据,并绘制出各其电阻率反演断面图。解释结果经矿方打钻验证,物探资料可靠。

A mining area in the Hebei Province has complex hydrogeological condition with multiple aquifers,strong water yield property,developed faults and fractures,but has good relativity between resistivity and lithological features,geologic structures.During the controlled-source audiomagnetotellurics operation,dipole equatorial equipment was used,by the use of V6-A electromagnetic sounder of Phoenix Company determined Ex and Hy,then through collected original data value mute,noise elimination,filtering,correcting and inversion imaging,every line's resistivity from inversion and resistivity inversion section determined.The interpreted results have been validated through boreholes drilled by coalmine,demonstrated that the prospecting data are reliable.