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fan li liang bian xing de dan pian she ying ce liang shi yan
Pages: 61-65+10
Year: Issue:  2
Journal: Geotechnical Investigation & Surveying

Keyword:  单片摄影控制点扩底桩近景摄影测量外方位元素误差变形量主梁荷载试验量测误差变形值;
Abstract: <正> 扩底桩(墩)是一种在下部逐渐扩径的桩。近年来,某些工程采用扩底桩作桩基,收到较显著的经济效果。为了探讨扩底桩的承载力与桩长、桩径、扩径参数以及地质条件的关系,了解桩的动力性能,检查反力架装置的安全情况,我所进行了一次颇具规模的扩底桩单桩和群桩荷载试验。应用单片近景摄影测量测定反力梁的变形是主要试验内容之一,现介绍如下。
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