摘要
针对在起伏地形的情况下,含水陷落柱的异常形态特征的系统研究不足的问题。采用井-地联合电阻率观测装置,用有限单元法对起伏地形下不同形态和位置的含水陷落柱模型进行正演计算,对正演的结果进行系统的分析。结果表明:起伏地形对地下情况的勘探有较大的影响,含水陷落柱处于地形产生的低阻异常区域时产生的异常被掩盖,含水陷落柱处于地形产生的高阻异常区域时会产生新的低阻异常,并能根据新的低阻异常推断含水陷落柱模型位置,得到的系统对比分析的结果对于实际勘探有指导作用。
The systematic research on anomaly of water-bearing collapse column under undulating terrain is insufficient.The borehole-ground joint resistivity surveying system was used to forward calculate the water-bearing collapse column model of different shapes and positions under undulating terrain by finite element method,and the forward results were systematically analyzed.The results show that the undulating terrain has a great influence on the exploration of underground conditions.The anomaly of water-bearing collapse column is covered up when the water-bearing collapse column is located in the low-resistance anomaly area generated by the terrain.When the water-bearing collapse column is located in the high-resistance anomaly area generated by the terrain,a new low-resistance anomaly is to be generated.The position of the water-bearing collapse column model can be inferred according to the new low-resistance anomaly.The obtained results of systematic comparative analysis have guiding significance for actual exploration.
作者
孟麟
王智
MENG Lin;WANG Zhi(School of Electronics&Information Engineering,Yangtze University,Jingzhou 434023,China)
出处
《科学技术与工程》
北大核心
2020年第33期13583-13592,共10页
Science Technology and Engineering
基金
国家自然科学基金(41604093)。
关键词
井-地联合观测装置
起伏地形
含水陷落柱
有限单元
borehole-ground joint resistivity surveying system
undulating terrain
water-bearing collapse columns
finite element
