摘要
在高密度电法等工程地球物理实践中,往往采用传统的如最小二乘等光滑反演手段,对其它反演方法及先验信息的利用考虑得较少。本文针对地下电性异常存在尖锐边界的地质体,将传统最小二乘光滑反演和不常用的迭代重加权尖锐反演结果进行了对比分析,通过针对性模型试验和实际资料处理,证明在解决该类地质问题时通过采用合理的反演手段和方法,可达到增加反演精度,突出电性目标和便于地质解释的目的。
In engineering geophysics, we always use traditional least--squared smoothing in- version in multi--electrode resistivity sounding, and pay little attention to the known infor- mation and other inversion methods. In this paper, with the purpose of revealing the anom- alous bodies with sharp boundary, we make a comparison with traditional least--squared smoothing inversion and robust inversion result by doing experiments on bomb shelter, and make a conclusion that choosing appropriate inversion method can improve our inversion precision and can be interpreted easily.
出处
《工程地球物理学报》
2012年第5期516-521,共6页
Chinese Journal of Engineering Geophysics
基金
国家高技术研究发展(863)计划(编号:2008AA093001)
国家科技重大专项专题(编号:2011ZX05005-005-009HZ
2011ZX05023-003-003)
高等学校博士学科总专项科研基金(编号:20110072110017)资助
关键词
高密度电法
尖锐反演
最小二乘光滑反演
multi-- electrode resistivity sounding
sharp boundary inversion
least-- squaredsmoothing inversion
