| 高密度电法在公路岩溶勘察中的应用 |
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| 引用本文： | 孙瑛,阎长虹,许宝田. 高密度电法在公路岩溶勘察中的应用[J]. 江苏建筑, 2012, 0(3): 68-70 |
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| 作者姓名： | 孙瑛 阎长虹 许宝田 |
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| 作者单位： | 1. 南京大学地球科学与工程学院,江苏南京210093／江苏省地质勘查技术院,江苏南京210008
2. 南京大学地球科学与工程学院,江苏南京,210093 |
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| 摘 要： | 简要介绍了高密度电阻率法的工作特点，应用该方法在南京长江第四大桥南接线中的某一段路面进行了探测，获得了测区内测线的视电阻率二维成像图，通过对视电阻率二维成像图异常形态、高低阻等特征的分析，推断出工区的基岩埋深以及地下岩溶、溶洞的分布范围、大小和埋深。经钻探资料证实，推断结果与实际情况基本吻合。
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| 关 键 词： | 高密度电法 视电阻率 基岩 溶洞 |
Application of High-Density Resistivity Method to the Exploration of Karst Cave of Roadbed |
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| SUN Ying,YAN Chang-hong,XU Bao-tian. Application of High-Density Resistivity Method to the Exploration of Karst Cave of Roadbed[J]. Jiangsu Construction, 2012, 0(3): 68-70 |
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| Authors: | SUN Ying YAN Chang-hong XU Bao-tian |
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| Affiliation: | 1(1.School of Geosciences & Engineering,Nanjing University,Nanjing Jiangsu 210093 China; 2.Engineering Geophysical Exploration Institute of Jiangsu Province,Nanjing Jiangsu 210008 China) |
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| Abstract: | The article briefly introduced the characteristics of high-density resistivity method,and took the results of the south past of the Fourth Nanjing Yangtze River Bridge in a section of the roadbed detection as an example,obtained some two-dimensional images of the apparent resistivity.Through the analysis of anomaly patterns in the two-dimensional images of the apparent resistivity,inferred the depth of bedrock and the distribution,the size and the depth of karst cave in the experiment site.The drilling data confirmed that the inference were basically consistent with the actual situation. |
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| Keywords: | high density resistivity method apparent resistivity bedrock karst cave |
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