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The Distribution Characterization and the Genetic of Low Wave Zone on the Surface of Rock Mass of the Dam Foundation
Author(s): 
Pages: 123-125
Year: Issue:  4
Journal: Yellow River

Abstract: 坝基开挖后,表层岩体会产生松弛卸荷现象,引起表层岩体声波波速明显降低,在表层形成低波速带.某水电站坝基左岸表层低波速带空间分布特征分析结果表明:坝基岩体表层低波速带的空间分布呈层状,局部出现异常深度;坝基表层低波速带在空间上的分布状况与表层岩体浅表生时效变形、建基面地质构造等因素有关.
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