桥墩局部冲刷防护工程特性研究综述

系统地总结了近年来应用于实际工程和室内实验研究的桥墩局部冲刷防护工程措施,如抛石防护、扩大基础防护、混凝土铰链排防护、四角混凝土块防护、护圈防护、桥墩开缝防护、墩前排桩防护和淹没槛防护等,并对这些传统防护工程措施的防护机理、防护效果和防护优缺点进行了论述和评价,对完美结合实体抗冲和减速不冲防护特性于一体的四面体透水框架群防护方法的研究现状进行了详尽的介绍,并介绍了桥墩局部冲刷防护措施的工程应用实例。

Properties of protection engineering against local scouring around piers

The engineering protection measures against local scouring around piers applied to practical projects and laboratory tests in recent years were systematically summarized,such as riprap protection,foundational enlargement,concrete mattress,tetragonal concrete blocks,circular collar,pier slots,layout of sacrificial piles and submerged sills in front of piers,etc.,and the protection mechanism and effect of these measures as well as their advantages and disadvantages were discussed and appraised.Moreover,the current research on the tetrahedron permeable frame protection measure,which was superior to the conventional measures and characterized by the combination scouring control and deceleration to avoid scouring,was introduced in detail.Finally,the application of the protection measures against local scouring around piers in practical projects was presented.