| 高密度电法在某公路路基下隐伏岩溶探测中的应用 |
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| 引用本文： | 密士文,王翔,周厚侠.高密度电法在某公路路基下隐伏岩溶探测中的应用[J].山东国土资源,2015,31(1):62-64. |
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| 作者姓名： | 密士文 王翔 周厚侠 |
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| 作者单位： | 临沂市国土资源局,山东 临沂,276000 |
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| 摘 要： | 灰岩分布区易发生岩溶塌陷等地质灾害,高密度电阻率法是岩溶地质调查的重要手段。以某一段穿越岩溶发育区的公路为例,应用高密度电法对区内暗河、槽谷型岩溶塘、落水洞等灾害地质体进行了探测,结果显示拟建路段覆盖层厚度大约为2~20 m,基岩内岩溶极发育,岩石地表起伏大,溶沟、溶槽、岩溶塌陷、落水洞发育;岩石中溶蚀裂隙、溶洞发育。表明高密度电阻率法能够有效地判定岩溶的发育情况,可以为地质灾害评估提供科学客观的依据。
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| 关 键 词： | 灰岩 高密度电阻率法 岩溶 公路路基 |
Application of High Density Resistivity for Underground Karst Detection |
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| MI Shiwen,WANG Xiang and ZHOU Houxia.Application of High Density Resistivity for Underground Karst Detection[J].Land and Resources in SHANDONG Province,2015,31(1):62-64. |
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| Authors: | MI Shiwen WANG Xiang and ZHOU Houxia |
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| Institution: | MI Shiwen;WANG Xiang;ZHOU Houxia;Linyi Bureau of Land and Resources; |
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| Abstract: | Karst collapse can easily happen in limestone distribution area. High density resistivity method is an important method for karst geological detection. In this paper, taking the detection of a certain roadbed as an example, by using high density resistivity method, geological disasters have been detected, such as underground river, valley type karst sinkhole and pond. It is showed that thickness of covering layer in constructing area is about 2~20m. Karst developed well in bedrock. Large wavy in surface, well developed karren, solution groove, karst collapse and ponor, corrosion cracks in rocks and well developed karst rocks. It is showed that high density resistivity method can effectively judge the development of karst. It can provide a scientific basis for the evaluation of geological disaster. |
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| Keywords: | Limestone high density resistivity method karst |
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