CAJ | 학술논문

针对黄河北干流东岸沿黄公路改道占用黄河河道情况，在现场查勘的基础上，通过对河道冲淤演变与洪水特点分析，确定了设计洪水。根据改移公路工程的情况，利用清水动床实体模型对不同工程边界条件下50 a一遇洪水路基坡脚处河床冲刷深度进行了试验。试验研究表明，在试验来流条件和桥下路堤完全被冲毁的情况下，公路路基平均冲刷深度为4．21 m，最大冲刷深度为9．04 m，最深点位置在桩号K0＋550处；在试验来流条件和桥下路堤不被冲毁的情况下，公路路基平均冲刷深度为4．12 m，最大冲刷深度为7．56 m，最深点位置在桩号K0＋800处。
침대황하북간류동안연황공로개도점용황하하도정황，재현장사감적기출상，통과대하도충어연변여홍수특점분석，학정료설계홍수。근거개이공로공정적정황，이용청수동상실체모형대불동공정변계조건하50 a일우홍수로기파각처하상충쇄심도진행료시험。시험연구표명，재시험래류조건화교하로제완전피충훼적정황하，공로로기평균충쇄심도위4．21 m，최대충쇄심도위9．04 m，최심점위치재장호K0＋550처；재시험래류조건화교하로제불피충훼적정황하，공로로기평균충쇄심도위4．12 m，최대충쇄심도위7．56 m，최심점위치재장호K0＋800처。
Taking the highway diversion project in Fubao section from Xingxian to Baode over the north stream of the Yellow River as back-ground,based on the site survey as well as the analysis of scour and silting evolution and the flood characteristics,the study determined the design flood. Based on the project,the clean-water movable-bed model was used to test the scour depth of river bed at the embankment toe in the case of once-in-fifty-year frequency flood under different project boundary conditions. The results show that the average scour depth of the roadbed is 4. 21m,the maximum scour depth is 9. 04 m,and the deepest position is at the stake K0+500 under the conditions of the em-bankment under the bridge completely washed away;the average scour depth of highway roadbed is 4. 12 m,the maximum scour depth is 7. 56 m,and the deepest position is at the stake K0+800 under the conditions of the embankment under the bridge not washed away.