| 应用物探方法探测高速公路路基岩溶 |
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| 引用本文： | 杨天春,周勇,李好,朱自强.应用物探方法探测高速公路路基岩溶[J].工程勘察,2010(4):80-82,86. |
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| 作者姓名： | 杨天春 周勇 李好 朱自强 |
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| 作者单位： | [1]湖南科技大学湖南省普通高等学校土木工程施工过程与质量安全控制重点实验室,湖南湘潭411201 [2]中南大学信息物理工程学院,长沙410083 |
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| 基金项目： | 湖南省自然科学基金资助项目（06JJ2077） |
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| 摘 要： | 本文主要探讨物探方法在灰岩区探测溶洞方面的有效性,为今后的道路岩溶探测提供经验参考。文中以郴(州)宁(远)高速公路K196+500～K196+700段岩溶探测为例,采用地质雷达、高密度电阻率方法探测溶洞的分布情况,最后利用钻孔对物探解释结果进行抽样验证。根据钻探资料可知,物探的解释成果是准确可行的,物探方法不仅节省了勘察成本,还避免了钻探以点代面的缺陷。在今后的工作中,可将这两种方法结合起来进行推广应用。
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| 关 键 词： | 地质雷达 高密度电法 岩溶 视电阻率 |
Application of geophysical methods to detect karst caves existed in the subgrade of expressway |
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| Yang Tianchun,Zhou Yong,Li Hao,Zhu Ziqiang.Application of geophysical methods to detect karst caves existed in the subgrade of expressway[J].Geotechnical Investigation & Surveying,2010(4):80-82,86. |
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| Authors: | Yang Tianchun Zhou Yong Li Hao Zhu Ziqiang |
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| Affiliation: | 1. Hunan College Key Laboratory of the Construction Process,Quality and Safety of Civil Engineering, Hunan University of Science and Technology,Xiangtan 411201,China; 2. School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The exploration validity of geophysical methods to karst caves are discussed,which could offer the experience for the exploration of subgrade caves. Taking the exploration of karst caves in section K196 ＋ 500 ～ K196 ＋ 700 of Chenzhou-Ningyuan expressway as an example,the ground penetrating radar and the high-density resistivity method to survey karst caves are adopted,and the exploration results have been validated by the drilling. According to the drilling results,the geophysical interpreting results are exact. The cost for the investigation with geophysical methods is low,and the shortage for the drilling with point result substituting area one could be avoided. The above two geophysical methods could be jointly used in engineering practice. |
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| Keywords: | ground penetrating radar high-density resistivity method karst apparent resistivity |
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