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填方路基压实质量的电阻率成像诊断试验

, PP. 16-21

Keywords: 道路工程,压实质量,试验研究,电阻率,成像诊断,填方路基

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Abstract:

？为了更好地诊断路基质量状况,以山区道路建设中常见的土石混填路基为例,制作了路基内存在空洞、不均匀体以及不密实区3种不同病害的路基模型,采用电阻率成像检测法对病害模型进行了诊断测试,并对预设病害区域与电阻率成像诊断结果进行对比分析。结果表明:当路基内存在病害区域时,在路基的电阻率图像中会产生一个电阻率异常变化区域与之对应;预设病害区域的位置与电阻率异常变化区具有良好的对应关系,不同类型病害的电阻率异常变化幅度也不一致;采用电阻率成像诊断方法对路基压实质量进行检测和病害诊断是可行的。

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