超大型沉管与碎石垫层之间摩阻系数的推算方法

Calculation method for friction coefficient between ultra-large immersed tube and gravel subgrade

钢筋混凝土结构沉管与碎石基床之间的摩擦系数尚未在实际操作过程中确认,大多只是物模试验的模拟数据。借助沉管拉合作业过程中水流力、安装船缆力、千斤顶拉合力等数据,推算钢筋混凝土沉管与碎石基床之间的摩擦系数,为国内的沉管工程提供参考。

The friction coefficient between the reinforced concrete structure immersed tube and gravel bed has not been confirmed in the actual operation process, mostly just simulated data of physical model test. Combined with the data such as current forces, cable forces in shipboard, pulling in jack of the pull-in construction of pipe sections, we calculated the friction coefficient between the reinforced concrete structure immersed tube and gravel bed, which provides the reference for domestic immersed tube project.