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.
