The riverbank protection structure with notched sill is a new type of retaining wall structure, but there is not yet theoretical design standard.
齿坎式护岸结构是一种新型挡墙结构，但目前齿坎式挡墙缺乏理论设计规范。
F draft sill is an integrated casting component with thin wall and inner empty box, and irregular deformations like torsion and bending occur easily.
牵引梁为薄壁、内空箱体整体铸造构件，铸件容易出现搓扭和弯曲无规律性变形。
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