橡胶粉对塑性混凝土抗剪性能影响及在水库加固中的应用  

Influence of Rubber Powder on Anti-shear Performance of Plastic Concrete and Its Application in Reservoir Reinforcement

作　　者：郭鹏杰[1] GUO Pengjie(Changjiang Water Resources Commission,Changjiang River Scientific Research Institute,Wuhan 430010,China)

机构地区：[1]长江水利委员会长江科学院,湖北武汉430010

出　　处：《云南水力发电》2024年第7期52-55,共4页Yunnan Water Power

基　　金：山东省科技发展计划项目(2022G0020224)。

摘　　要：为提高塑性混凝土的抗剪性能,运用直剪试验,研究了不同水胶比和不同橡胶粉掺量对抗剪摩擦系数和粘聚力的影响。结果表明:橡胶粉掺量大,塑性混凝土抗剪摩擦系数增大,但粘聚力下降;减小水胶比,塑性混凝土粘聚力增大。协同调控橡胶粉和水胶比,可提高塑性混凝土的抗剪摩擦系数和粘聚力,增强土石坝坝基和坝体防渗效果,确保大坝安全稳定。In order to improve the shear resistance of plastic concrete,the direct shear test was used to study the influence of different water binder ratio and different rubber powder content on the shear friction coefficient and cohesion.The results show that the shear friction coefficient of plastic concrete increases with the increase of rubber powder content,but the cohesion decreases.The cohesion of plastic concrete increases with the decrease of water binder ratio.Coordinated regulation of rubber powder and water binder ratio can improve the shear friction coefficient and cohesion of plastic concrete,enhance the anti-seepage effect of earth rock dam foundation and dam body,and ensure the safety and stability of the dam.

关 键 词：橡胶粉 塑性混凝土 抗剪摩擦系数 粘聚力 水库除险 工程应用 

分 类 号：TV4312[水利工程—水工结构工程]