采用模型测试区域磁异常信号的影响
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摘要
井工地下采空区,是一种常见现象。采用超导量子干涉磁力仪,利用COMSOL Multiphysics软件模型,针对不同尺寸的采空区,获得了用模型模拟的采空区磁场数据和不同尺寸采空区的磁场图。在此基础研究了采空区大小对区域磁场信号的影响,为采空区的位置、大小判断工作提供一定的借鉴。
It is a common phenomenon that goaf is under the well site.Using superconducting quantum interference magnetometer and COMSOL Multiphysics software model,in view of goafs with different sizes,the model was used to simulate the magnetic field data and magnetic field map of goafs with different sizes.Based on this,the influence of the size of the goaf on the area magnetic field signal is studied,which provides a reference for the determination of the position and size of the goaf.
It is a common phenomenon that goaf is under the well site.Using superconducting quantum interference magnetometer and COMSOL Multiphysics software model,in view of goafs with different sizes,the model was used to simulate the magnetic field data and magnetic field map of goafs with different sizes.Based on this,the influence of the size of the goaf on the area magnetic field signal is studied,which provides a reference for the determination of the position and size of the goaf.
引文
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[2]Schmidt P W.The magnetic gradient tensor:Its properties and uses in source characterization[J].Leading Edge,2006,25(1):75.
[3]Foss C.Improvements in source resolution that can be expected from inversion of magnetic field tensor data[J].Leading Edge,2012,25(1):81-84.
[4]李萌.全张量磁梯度探头结构设计及验证[D].长春:吉林大学,2015.
[5]申茂冬.高温超导全张量磁梯度测量技术研究[D].长春:吉林大学,2017.
[6]刘天佑,高文利,冯杰,等.井中三分量磁测的梯度张量欧拉反褶积及应用[J].物探与化探,2013,37(4):633-639.
[7]孟慧.磁梯度张量正演、延拓、数据解释方法研究[D].长春:吉林大学,2012.
[8]徐熠.磁梯度张量异常反演算法与算例[D].北京:中国地质大学(北京),2015.
[9]吴招才,刘天佑.磁力梯度张量测量及应用[J].地质科技情报,2008,27(3):107-110.
[10]Kletetschka G,Wasilewski P J,Taylor P T.Hematite vs.magnetite as the signature for planetary magnetic anomalies[J].Physics of the Earth and Planetary Interiors,2000,119(3):259-267.
[11]车志强,朱登杰,刘小飞,等.超低频地质遥感法在铁矿采空区探测中的应用研究[J].中国矿业,2010,19(6):95-97.
[12]周楠楠,薛国强,陈卫营,等.铁矿采空区的地球物理探测[J].地球物理学进展,2011,26(2):669-674.