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黄河游荡性河床大跨越纵向冲刷深度的确定 被引量:3

Determination of Big Span Longitudinal Scour Depth Confirmation of Yellow River's Wandering Riverbed
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摘要 塔基纵向冲刷深度是分析塔基最小埋置深度,评价基础安全性和经济性的重要技术指标。首先根据黄河历史资料,利用推荐公式计算塔基纵向冲刷深度,分析了公式计算结果的可靠性。介绍了局部动床模型试验应关注的主要问题,通过实验结果与公式计算结果对比分析,最终确定纵向冲刷深度取值,为塔基埋置深度提供了合理的设计依据。 Tower foundation's longitudinal scour depth is important technical index to analyze tower foundation's least buried depth and appraise foundation's safety and economy. Based on Yellow River's historical data and corresponding tower foundation's calculated longitudinal scour depth, this paper analyze the reliability of calculated result by formula. The paper introduces main problem need to draw attention during local movable bed model test. By contrast test result and calculated result by formula, this paper finally confirm the longitudinal scour depth, which can provide reasonable design gist of tower foundation's least buffed depth.
出处 《电力勘测设计》 2011年第6期26-28,43,共4页 Electric Power Survey & Design
关键词 游荡性河床 大跨越 纵向冲刷 公式计算 局部动床模型 wandering riverbed big span longitudinal scour calculate by formula local movable bed model.
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