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玄武岩纤维与聚丙烯酰胺加筋固化粉土剪切强度

Journal of Nanjing University of Technology(Natural Science Edition)(2017)

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Abstract
针对粉质土路基坡面冲刷破坏与叠瓦状分层滑移的两大病害,提出一种粉土路基边坡固化加筋复合面层增稳抗冲刷护坡技术.开展了复合面层的直接剪切试验,讨论不同玄武岩纤维加筋量、筋长和聚丙烯酰胺掺量配比条件下复合面层材料的剪切变形和抗剪强度的变化规律,研究复合面层的增稳抗剪性能及玄武岩纤维的最优掺量、筋长与聚丙烯酰胺的最优配比.试验表明:复合面层最优配比为玄武岩纤维筋长12 mm、掺量0.4%,聚丙烯酰胺掺量1%,复合面层的抗剪强度能够满足护坡技术的要求.
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