摘要
该文从高密度电阻率法的基本原理出发,以高密度电法某场地岩溶探测为例,根据实际情况建立正演模型,模拟结果表明高密度电法可以探测地下岩溶,最终的探测结果与模拟结果吻合。结合天然电场选频法,综合分析电阻率异常变化,弥补了单一方法的不足,取得了显著效果。经过钻探验证,表明该方法在地下岩溶勘查中的可行性。
This paper starts from the basic principle of high-density resistivity method,and it takes the high-density electrical method in the exploration of a karst area for exemple. Combined with the actual conditions,the forward model is established. The simulation result shows that the high-density electrical method can explore the underground karst. The final detection results coincide with the simulation results. Combined with the natural electric frequency selection method,the abnormal change of resistivity is analysed comprehensively. It makes up for the lack of single method,and gets significant effects. Verifying by drilling,it shows the feasibility of this method in underground karst exploration.
作者
张启
宋克英
Zhang Qi;Song Keying(Beijing Urban Exploration ＆ Surveying Design Institute Co. ,Ltd)
出处
《勘察科学技术》
2018年第3期62-64,共3页
Site Investigation Science and Technology
关键词
高密度电法
电阻率
正演
天然电场
岩溶
high-density electrical method
resistivity
forward modeling
natural electric field
karst
