【摘要】 针对基岩裸露及其他不能或不允许使用接地电极的情况,采用不接触电极电法探测,数据采集连续进行,提高了交流电法的工作效率。采用双频发射方式,反映不同深度信息,在一定深度范围内同样达到测深的效果。研制了双频不接触电极发射机与接收机。在电极面积、形状对比实验基础上选择了线电极,并推导了装置系数,进行了不接触电极视电阻率法室内模拟实验和野外活断层探测实验。结果表明,不接触电极电法在浅层探测中与其他电法探测结果一致。更多还原

【Abstract】 In the case of exposed bedrock,or where contact electrodes are unable or not allowed to use,non-contact electrodes are adopted for electrical detection.Continuous sampling of data enhances the efficiency of alternating electrical detection.Two transmitting frequencies are employed to get the information of different depths,which,to a certain range of depth,functions as depth-sounding.Non-contact two-frequency transmitter and receiver were developed.Based on the contrast tests of electrode area and shape,line electrodes were selected and the configuration parameters were derived.Indoor modeling experiment and field faultage investigation were conducted.Results of electrical survey using non-contact electrodes agree with that of other methods for shallow subsurface investigation.更多还原