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武汉天兴洲公铁两用桥2#浮运围堰施工期局部冲刷试验研究 |
吴门伍1,严黎1,陈立2,熊洪1,周家俞3,陈荣力1
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1. 珠江水利委员会,珠江水利科学研究院,广东,广州,510611 2. 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 3. 重庆交通大学,西南水运工程科学研究所,重庆,400016
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摘要: |
通过武汉天兴洲公铁两用桥2^#浮运围堰下沉模拟试验,分析了在浮运围堰下沉期间不同阶段围堰周围水流流速、紊动强度及河床局部冲淤情况.针对浮运围堰下沉期间的水流及河床地形等条件,对浮运围堰下沉时河床局部冲刷深度进行了预测,试验预测结果与实测资料较为吻合. |
关键词: 浮运围堰 水槽试验 水流结构 局部冲刷 预测试验 |
DOI: |
分类号:TV147.5 |
基金项目:国家重点基础研究发展计划(973计划);国家自然科学基金 |
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Experimental study of local scour for No.2 floating cofferdam of Wuhan Tianxingzhou Rail-Cum-Road Bridge |
WU Men-wu1,YAN Li1,CHEN Li2,XIONG Hong1,ZHOU Jia-yu3,CHEN Rong-li1
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1. Scientific Research Institute of PRWRC, Guangzhou 510611, China ; 2. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 3. Southwestern Hydraulic Engineering Research Institute for Waterways, Chongqing Jiaotong University, Chongqing 400016, China
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Abstract: |
Based on the sinking simulation test for No. 2 floating cofferdam of Wuhan Tianxingzhou Rail-Cum-Road Bridge, the flow velocity, turbulence intensity and local scour around the floating cofferdam at different sinking phases are analyzed. According to the flow and riverbed conditions during the sinking process ot the tloating cofferdam, the local scour depth is predicted, and the predicted results are in good agreement with the field data. test |
Key words: floating cofferdam flume test flow structure local scour prediction |