摘要
目前国内常见的磁源瞬变电磁测量均采取布设规则形状发射线框的方式采集框内数据,之后利用处理软件制作成图解释。近年来,规则发射线框结合框外测量的方式已在生产中得到应用,但利用不规则发射线框结合框外测量的方式在生产中还难以见到。如果能利用不规则发射线框测量框外数据,对于提高瞬变电磁应用范围和工作效率都具有重要意义。通过模拟规则和不规则发射线框场源,对比两种不同发射线框框外实测数据,认为不规则发射线框框外测量数据真实可靠,可以带入软件计算,之后通过建模可确定地下构造的基本情况,表明采用不规则发射线框加框外测量的方式可以获得较好的探测结果,为瞬变电磁减少地形影响、提高测量效率和扩大方法应用范围提供了新的思路,具有良好的应用前景。
At present,a common TEM survey adopts the method of laying regular shape transmitter loop to collect the data both inside and outside the loop.Then the processing software is used to interpret the data and the figures have been made.In recent years,the method of combining regular transmitter loop with out-of-loop measurement has been applied in application surveys,but the method of combining irregular shape transmitter loop with out-of-loop measurement is rarely reported in application surveys.Therefore,the utilization of the out-of-loop data obtained from irregular shape transmitter loop will significantly improve the application range and work efficiency of TEM survey.Based on the simulation and comparison of the field source of the regular and irregular shape transmitter loop,we found that the data outside the irregular transmitter loop is correct and reliable,and used in the data processing.After that,the underground structure was roughly determined through modeling and obtained better detection results in reducing the topographic impact on the TEM surveys.The utilization of the out-of-loop data obtained from irregular shape transmitter loop provides a new idea to improve the measurement efficiency and expand the application range of the method and has a promising application prospect.
作者
王芳芳
雷阳
牛立群
WANG Fangfang;LEI Yang;NIU Liqun(Research Institute No.203,CNNC,Xixian New Area,Shannxi 710086,China)
出处
《世界核地质科学》
CAS
2023年第2期368-375,共8页
World Nuclear Geoscience
基金
中国核工业地质局生产中科研项目(编号:2015-141)资助。
