黄泛区粉土-玻璃纤维增强聚合物复合材料布界面摩擦特性试验

玻璃纤维增强聚合物复合材料（GFRP）强度高、耐热性好、抗碱性腐蚀能力较强，目前已广泛的应用于土木工程领域中。为了研究黄泛区粉土和GFRP布之间的界面摩擦特性，利用TZY-1型土工合成材料综合测定仪开展了直剪摩擦试验研究，分析了含水率、压实度和法向应力对界面摩擦特性的影响。结果表明，黄泛区粉土和GFRP布的界面摩擦强度随着压实度的增大而增大；界面摩擦强度在土体的含水率最优时达到最大，超过最优含水率后会下降；界面抗剪力随着法向应力的增大而增大，摩擦系数随着法向应力的增大而降低。

Experimental study on interface friction characteristics of silty soil in the Yellow River flooding area with glass fiber reinforced polymer composite cloth

Glass fiber reinforced polymer composites(GFRP) has high strength, good heat resistance and strong resistance to alkaline corrosion, and has been widely used in the field of civil engineering. In order to study the interfacial friction characteristics between the silty soil in the Yellow River flooding area and GFRP cloth, the direct shear friction test was carried out by using TZY-1 geosynthetic material comprehensive tester, and the effects of moisture content, compactness, normal stress on the interface friction characteristics were analyzed. The results show that the interfacial frictional strength of silty soil and GFRP cloth increases with the increase of compaction degree; the interfacial friction strength reaches the maximum when the soil moisture content is the optimal moisture content, and decreases when it exceeds the optimal moisture content; the interfacial shear resistance increases with the increase of normal stress, and the friction coefficient decreases with the increase of normal stress.