隐伏断层高密度电法响应特征与应用研究  

Study on High Density Electrical Response Characteristics and Application of Buried Faults

作　　者：丁力 闫亚景[1] 赵贵章[1] 李志萍[1,2] 李楠 王展[1] DING Li;YAN Yajing;ZHAO Guizhang;LI Zhiping;LI Nan;WANG Zhan(North China University of Water Resource and Electric Power,Zhengzhou 450045,China;Henan Vocational College of Water Conservancy and Environment,Zhengzhou 450008,China)

机构地区：[1]华北水利水电大学,河南郑州450045 [2]河南水利与环境职业学院,河南郑州450008

出　　处：《河南科技》2024年第3期86-92,共7页Henan Science and Technology

基　　金：“一带一路”水与可持续发展科技基金(2021490511)。

摘　　要：【目的】为探究高密度电法不同装置类型对不同倾角断层的探测效果,开展了高密度电法温纳alpha、温纳beta、温纳gamma、偶极装置对不同倾角断层探测效果研究。【方法】通过参数设计建立了不同倾角断层模型,进行正演计算得出结果,并采用最小二乘法对不同倾角断层模型的正演结果进行反演成像。【结果】比较结果得出高密度电法对探测断层倾角的最优识别装置为温纳alpha,其识别结果与设置值的匹配度高达96.1%。【结论】在试验场地预埋断层并利用温纳alpha装置对其进行探测,结果验证了高密度电法温纳alpha装置对断层响应效果最优,可有效确定断层产状信息,且实测结果与数值模拟结果基本符合。[Purposes]In order to explore the detection effect of different devices of high-density electri-cal method on faults with different dip angles,the detection effect of high-density electrical method Wenner alpha,Wenner beta,Wenner gamma and dipole device on faults with different dip angles was studied.[Methods]Different dip fault models are established by parameter design,and the results are ob-tained by forward calculation.Then,the least square method was used to invert the forward modeling re-sults of fault models with different dip angles.[Findings]Compared with the results,it was found that the optimal recognition device of high-density electrical method for detecting fault dip Angle was Wenner alpha,and the matching degree between the recognition results and the set values was up to 96.1%.[Conclusions]The fault is embedded in the test site and the Wenner alpha device is used to de-tect it.The results verify that the high density electrical Wenner alpha device has the best fault response effect and can effectively determine the fault occurrence information.The measured results are basically consistent with the numerical simulation results.

关 键 词：断层 电阻率 反演成像 温纳alpha装置 

分 类 号：P319.32[天文地球—固体地球物理学]