水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2013年
6期
123-130
,共8页
景洪勐泐大桥%桥位%桥型%水流数值模拟
景洪勐泐大橋%橋位%橋型%水流數值模擬
경홍맹륵대교%교위%교형%수류수치모의
Jinghong Mengle bridge%bridge site%bridge type%flow numerical simulation
根据桥位选择的基本原则，结合桥区工程概况、航道条件等方面对正交及斜交2个桥位进行比较，得出景洪勐泐大桥斜交桥位为推荐桥位。通过对斜交桥位各桥型方案的通航净空尺度、桥墩位布置等因素对通航影响等方面进行研究，确定将330 m跨钢箱拱桥桥型作为推荐桥型。最后通过水流数值模拟并结合实测资料进行分析，分析建桥后对通航水流条件的影响情况，从而更加确定推荐方案的合理性。
根據橋位選擇的基本原則，結閤橋區工程概況、航道條件等方麵對正交及斜交2箇橋位進行比較，得齣景洪勐泐大橋斜交橋位為推薦橋位。通過對斜交橋位各橋型方案的通航淨空呎度、橋墩位佈置等因素對通航影響等方麵進行研究，確定將330 m跨鋼箱拱橋橋型作為推薦橋型。最後通過水流數值模擬併結閤實測資料進行分析，分析建橋後對通航水流條件的影響情況，從而更加確定推薦方案的閤理性。
근거교위선택적기본원칙，결합교구공정개황、항도조건등방면대정교급사교2개교위진행비교，득출경홍맹륵대교사교교위위추천교위。통과대사교교위각교형방안적통항정공척도、교돈위포치등인소대통항영향등방면진행연구，학정장330 m과강상공교교형작위추천교형。최후통과수류수치모의병결합실측자료진행분석，분석건교후대통항수류조건적영향정황，종이경가학정추천방안적합이성。
According to the basic principles of the bridge site selection, and combining with the bridge area project overview and channel condition, we compare the orthogonal and bias bridge sites, and draw the Jinghong Mengle bridge skew bridge site as the recommended bridge site. Based on the research on theinfluence of navigation clearance dimensions and pier bit arrangement on navigation, we determine the 330 m span steel box arch bridge as the recommended bridge. Moreover, through the flow numerical simulation and combining with the measured data, we analyze its influence on navigation flow condition and thus determine the reasonableness of the recommended scheme.
