基于纤维与有机材料对水利边坡加固效果研究与分析  

Research and Analysis on Reinforcement Effect of Water Conservancy Slope Based on Fiber and Organic Materials

作　　者：金星 强超 郑君玉 高志发 JIN Xing;QIANG Chao;ZHENG Jun-yu;GAO Zhi-fa(Jiangsu Water Resources Survey and Design Institute Co.Ltd.,Yangzhou 225100,Jiangsu,China)

机构地区：[1]江苏省水利勘测设计研究院有限公司,江苏扬州225100

出　　处：《水利科技与经济》2025年第1期1-7,共7页Water Conservancy Science and Technology and Economy

基　　金：国家重点研发计划重大自然灾害防控与公共安全(2021YFC3000105);课题(2021YFC3000105)洪涝灾害全景分析与社会化管控平台开发与示范应用。

摘　　要：黏土与岩石界面的黏附力对水利岩石边坡的修复效果具有决定性作用。纤维和聚合物作为一种黏土改良方法,被广泛应用于水利岩石边坡修复中。基于此,通过设计室内类岩石界面滑动模型试验,研究剑麻纤维和聚醋酸乙烯酯(PVAc)加筋黏土的摩擦效果。利用模型试验结果和扫描电子显微镜(SEM)图像,对加筋黏土进行分析。结果表明,黏土的临界滑动角和最大静摩擦力随着含水量的增加而减小。纤维含量和含水量过高,会削弱纤维锚固黏土的耦合效应。纤维含量为0.8%、PVAc含量为2%时,对提高黏土的滑动阻力效果最好,并能分别为35°和45°岩坡危险界面提供良好的黏附力。The adhesion between clay and rock plays a decisive role in the repair effect of water conservancy rock slope.As a clay improvement method,fiber and polymer are widely used in the repair of hydraulic rock slope.Based on this,this paper studies the friction effect of sisal fiber and polyvinyl acetate(PVAc)reinforced clay by designing indoor rock like interface sliding model test.The reinforced clay was analyzed by using the model test results and scanning electron microscope(SEM)images.The test results show that the critical sliding angle and the maximum static friction of clay decrease with the increase of water content.High fiber content and water content will weaken the coupling effect of fiber anchored clay.When the fiber content is 0.8%and the PVAc content is 2%,the sliding resistance of clay is the best,and it can provide good adhesion for the dangerous interface of 35°and 45°rock slope,respectively.

关 键 词：剑麻纤维 聚醋酸乙烯酯 水利边坡 加固 

分 类 号：TV861[水利工程—水利水电工程]