摘要
针对常规直流电测深的应用情况,改革布极方式,研究提出梯度测深剖面法。该法能简化布极工序,可用多台接收机或多通道电测仪在多个电测深点上同时(连续)观测,大大提高工作效率。其装置有三极测深、四极测深和中梯测深等,其观测剖面上由于采用供电极稀设方式,能很好地适应二维正反演计算网格,宜于获得带地形的电阻率、极化率断面,实现电测深数据的层折成像。目前,该梯度测深方法已应用于金属矿勘查和工程勘察之中,取得成效。
According to the practical application of DC sounding,this paper puts forward a new gradient sounding profiles method.The surveying system can simplify the working procedure through using more than one receiver or multi-channel electrical measuring instrument in a number of electrical sounding points at the same time.Moreover,the gradient sounding system includes tri-electrode gradient arrangement,dipole-dipole gradient array and central gradient array,which is suitable to 2-D inverse interpretation.The system has been applied to metallic ore exploration and engineering investigation successfully.
出处
《物探与化探》
CAS
CSCD
北大核心
2011年第2期206-211,共6页
Geophysical and Geochemical Exploration
基金
国家自然科学基金(40774057)
广西自然科学基金(桂科自0832263)
广西地质工程中心重点实验室项目(桂科能07109011-K009)
关键词
梯度电测深剖面
直流电测深
供电极距
三极测深
中梯测深
gradient electrical sounding profiles
DC sounding
current distance
three-pole sounding
central gradient sounding
