CAJ | 학술논문

通过球体电磁响应的计算,对低阻围岩中高阻球体模型电磁响应测量结果进行了分析,获得了高阻球体的异常特征.对干旱地区深埋土洞的工程探测结果表明:高阻土洞的瞬变电磁响应特征与模拟实验结果类似,对高阻目标体具有较好的探测效果;高阻体引起的瞬变电磁场异常范围大于目标体实际规模.
통과구체전자향응적계산,대저조위암중고조구체모형전자향응측량결과진행료분석,획득료고조구체적이상특정.대간한지구심매토동적공정탐측결과표명:고조토동적순변전자향응특정여모의실험결과유사,대고조목표체구유교호적탐측효과;고조체인기적순변전자장이상범위대우목표체실제규모.
The authors calculated the transient electromagnetic response for a sphere and measured the transient electromagnetic method (TEM) response results of a high resistivity sphere buried in a low resistivity surrounding rocks in a model experiment, and achieved the transient electromagnetic response features of the high resistivity sphere object. An exploration for a deep-buried soil cave filled with air was conducted by TEM and the results shows that the transient electromagnetic response of high resistivity cave is similar as in the model experiment. It is concluded that the electromagnetic method is effective in detecting high resistivity targets although the extent of high resistivity anomaly is larger than that of the real cave.