土壤盐渍化地电模型正反演模拟研究  

Simulation study of soil salinization geoelectric model

作　　者：刘鹏 苏巍[1] 金刘彪 LIU Peng;SU Wei;JIN Liu-biao(School of surveying and mapping engineering,Jilin Jianzhu university,Changchun 130118,China)

机构地区：[1]吉林建筑大学测绘与勘查工程学院,长春130118

出　　处：《吉林建筑大学学报》2023年第6期39-45,共7页Journal of Jilin Jianzhu University

基　　金：吉林省教育厅“十三五”科学技术项目(JJKH20180611KJ)。

摘　　要：为了探索温纳α装置和温纳β装置对盐渍土地层的探测精度,通过高密度电法对农安县的盐渍土地层数据进行探测,并以实测反演结果为依据设计出3种盐渍土地电模型,使用这两种装置对地电模型做理论正反演并分析其模型电性响应特征.结果表明:盐渍土模型在反演结果上的特征为低阻异常明显,高阻差异较大;温纳α装置对近地表盐渍土的水盐特性分辨率更高;温纳β装置对不同埋深的盐渍土水盐特性分辨率更高;当盐渍土既分布在地表也分布在地下时,温纳β装置要优于温纳α装置.In order to explore the detection accuracy of the Wenner alpha device andthe Wenner beta device on saline soil layers,the saline soil layer data of Nong′an county were first detected by high-density electrical method,and three saline land electrical models were designed based on the measured inversion results,and the two devices were used to theoretically invert the geoelectric model and analyze the electrical response characteristics of the model.The results show that the saline soil model is characterized by obvious low resistance abnormalities and large differences in high resistance.The Wenner alpha device has a higher resolution of water and salt characteristics in near-surface saline soils.The Wenner beta device has a higher resolution of water and salt characteristics of saline soil at different buried depths.When saline soil is distributed both on the surface and underground,the Wenner beta device is better than the Wenner alpha device.

关 键 词：盐渍土 高密度电法 正反演 温纳α装置 温纳β装置 

分 类 号：TU435[建筑科学—岩土工程]