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Features of Covered Karst Disclosed by Geophysical Exploration in Three-Gorge Reservoir Region
Pages: 64-66
Year: Issue:  1
Journal: Geotechnical Investigation & Surveying

Keyword:  地球物理探测 隐伏岩溶 三峡库区;
Abstract: 三峡库区隐伏岩溶问题是近期发现的重大工程地质问题。利用电法EH 4、地震面波、浅震、地震CT等方法对隐伏岩溶进行探测 ,得出隐伏岩溶在中三叠统巴东组 (T2 b)泥灰岩中普遍存在 ,具有由浅至深由强变弱的分层性和局部不均匀性 ,并与地貌和地下水具有密切关系。文章还提出了物探方法在隐伏岩溶勘探中的优化组合及布线和解译要领
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