CAJ | 학술논문

桥墩局部冲刷深度的可靠预测是保证桥梁安全运行的基础。我国对河流上的桥墩局部冲刷做过大量研究，但河口海湾及沿海地区跨海湾桥梁，往往水域宽阔，作用水流多为极其复杂的双向潮流，目前针对性的研究尚少。通过对钱塘江河口及杭州湾的嘉绍大桥、杭州湾大桥和金塘大桥在潮流作用下的桥墩局部冲刷开展水槽试验，研究了桥墩在潮流作用下的冲刷坑形态与冲刷过程，并对潮流作用下桥墩局部冲刷深度的主要影响因子进行了分析。
교돈국부충쇄심도적가고예측시보증교량안전운행적기출。아국대하류상적교돈국부충쇄주과대량연구，단하구해만급연해지구과해만교량，왕왕수역관활，작용수류다위겁기복잡적쌍향조류，목전침대성적연구상소。통과대전당강하구급항주만적가소대교、항주만대교화금당대교재조류작용하적교돈국부충쇄개전수조시험，연구료교돈재조류작용하적충쇄갱형태여충쇄과정，병대조류작용하교돈국부충쇄심도적주요영향인자진행료분석。
The destruction of the bridge is mainly caused by the local scour at piers , so a great deal of research have been made and get many achievements . However with the development of estuarine , coastal and offshore engineering the result hasn ’ t fit for the local scour at piers over tidal waterways because of complicated tidal current . Based on the data of scour depth at piers over Qiantang estuary under tidal current action , such as Hangzhou-Bay major bridge etc , the principles of local scour at bridge piers and scour processes are investigated , and effects of every kind of parameters on maximum scour depth are analyzed .