淮北大堤护岸软体排与岸坡土界面摩擦 特性试脸研究

结合国家治淮骨干工程建设项目，将复合土工织物软体排护岸技术应用于淮北大堤加固 工程某河段崩岸治理。通过室内试验和现场模拟试验研究，确定软体排排布与沙性淤泥质土界面 之间的摩擦系数，为淮北大堤崩岸治理工程提供可靠的设计参数。同时，为软体排护岸技术的推 广应用积累了经验，为《土工合成材料应用技术规范》( GB 50290-98 )的修订完善提供了成功的工 程实例。

Experimental study on frictional characteristics between flexible revetment mattress and bank soil

Combined with the state key construction projects of Huaihe River,the bank protection technique of the flexible revetment mattress consisted of composite geotextile is applied to the treatment on the bank collapse occurred at a reach of the river for the Huaibei Levee Reinforcement Project.Based on the relevant laboratory tests and in-situ simulation tests,the friction coefficient between both the geotextile of the flexible mattress and the soil of sandy silt is defined for providing the reliable design parameters for the treatment on the bank collapse of Huibei Levee.At the same time,this study has not only got some experiences for popularizing the application of the technology presented herein,but has also provided a successful engineering case for the revision and perfection of the Technical Standard for Applications of Geosynthetics(GB 50290—98).