钢筋混凝土沉管管节与基床摩擦阻力的试验研究

Friction research between immersed reinforced concrete tube elements and foundation bed

为正确掌握不同工况下钢筋混凝土沉管管节与基床的摩擦阻力,开展了不同碎石粒径、满铺和有垄沟碎石基床、不同负浮力条件下沉管管节模型与碎石基床摩擦系数、碎石基床的沉降等试验研究,并对试验结果进行了分析,为沉管安装受力计算提供参考依据。

In order to know the friction between immersed reinforced concrete tube elements and foundation bed in different working conditions, we carried the experimental studies on the friction coefficient between the immersed tube element model and the rubble foundation bed, and the settlement of the rubble foundation bed in different conditions, such as the conditions with different rubble size, with the fully paved and furrow-paved rubble foundation beds, and in different negatively buoyant conditions. We analyzed the test results, which can provide references for the force calculation of immersed tube installation.