邦尼河悬索桥(Bonny River Suspension Bridge,见图1)跨越尼日利亚邦尼河,全长2.8km,主跨长1.5km。桥塔采用H形混凝土塔,河面以上塔高230m。主缆直径约0.95m。正交异性钢箱加劲梁宽35m,梁高4.8m,吊索间距为20m。邦尼河悬索桥锚碇基础处地质条件特殊,为厚软弱粉质粘土层,覆盖有密集的沙层、砾石层。锚碇基础要能够将巨大的水平力传递到地面以下20m深的坚硬地层中,同时还要能限制锚碇的长期变形 The Bonny River Suspension Bridge (see Figure 1) spans the Bonnie River in Nigeria and is 2.8km long with a main span of 1.5km. Tower using H-shaped concrete tower, the river above the tower height of 230m. The main cable diameter of about 0.95m. Orthotropic steel box stiffener beam width 35m, beam height 4.8m, sling spacing of 20m. Bonnie River Suspension Bridge anchorage at the foundation of special geological conditions for the thick, weak silty clay layer, covered with dense sand, gravel layer. Anchors should be able to transfer large horizontal forces to hard formations 20m below the ground while limiting the long-term deformation of the anchors