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位置：首页 >> 期刊文章
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摘要：
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长江口工程北导堤NⅡB标段采用在半圆形沉箱底板设置橡胶阻滑板的方法提高沉箱与抛石基床之间摩擦系数,作为抗地基土动力软化的工程措施。利用该项目试验数据,分析橡胶阻滑板与抛石基床的摩擦系数的统计特性与影响因素。分析结果表明,同一基床应力下摩擦系数试验值的概率分布接近于正态分布,摩擦系数的总体平均变化趋势随基床应力的增加略有降低,但全部试验数据的统计假设检验不支持这一观点,摩擦系数随基床应力的变化规律需要进一步研究。
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In the north jetty segment numbered as NIIB in the deepwater channel regulation project at Yangtze Estuary,a new engineering method that laying antisliding rubber sheet underneath the bottom of the semi-circular caissons was adopted to enhance the friction coefficient between the caissons and the rubble mound foundations.Based on the experimental data of this project,the statistical characteristics of that friction coefficient and influence factors are analyzed.Analysis results show that the statistic distribution of friction coefficient is normal distribution for same stress in foundations.The variation tendency for population mean of friction coefficient shows a little decrease when stress increase in foundations.But it is not supported by the test of hypothesis for total experimental data of friction coefficient of anti-sliding rubber;the variation regularity of friction coefficient of anti-sliding rubber needs further studies.
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基金项目：
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国家自然科学基金(50779045);;
四川大学水力学与山区河流开发保护国家重点实验室开放基金(0710)
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作者简介：
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参考文献：
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[1]蔡云鹤,范期锦.长江口深水航道治理一、二期工程的设计与施工[J].水运工程,2009,(1).
[2]谢善文,李炎保.橡胶阻滑板在我国水运工程中的首次应用[J].水运工程,2006,(12).
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[5]JTJ290-98,重力式码头设计施工规范[S].
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