无纺布淤堵指标的评价模型研究

发布时间：2018-04-07 16:06

本文选题：短纤针刺非织造土工布　切入点：透水准则　出处：《水运工程》2017年12期

【摘要】：针对无纺布淤堵指标的评价问题,通过对航道整治工程岸坡反滤层中常用的短纤针刺非织造土工布的淤堵指标的透水准则和梯度比准则进行研究,找出两者之间的关系结合点:标准排水边坡的水力梯度值和梯度比限值,并基于此结合点开展无纺布的淤堵试验,对淤堵指标的评价模型进行探索研究,拟合出航道整治工程岸坡反滤层中无纺布淤堵指标的评价模型公式,以期指导计算无纺布能正常发挥反滤功能的时间期限。成果填补了该领域研究的空白,奠定了该领域研究的基础,为今后促进该领域的研究具有重要的价值和意义。
[Abstract]:Aiming at the problem of evaluation index by non-woven clogging, the waterway engineering slope filter used in fiber needle punched geotextile clogging index criterion and gradient ratio criterion of pervious research, finds the relationship between the two binding sites: water stress gradient standard drainage slope value and gradient ratio, and based on this point to carry out the combination of non-woven clogging test, studies the evaluation index of clogging model, the fitting formula evaluation model of Waterway Engineering Slope in the non-woven filter layer clogging indicators, calculation in order to guide the normal functioning of non-woven filter. The time limit results to fill the blank of the research in this field, laid the foundation of the research, it has important value and significance for the future promotion of the research in this field.

【作者单位】：长江航道规划设计研究院;
【基金】：长江航道局重点科技项目(cjjjhdcx20140017)
【分类号】：U617

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