[1]严建科,焦 臣,龙 涛,等.桥墩轴向与水流成不同夹角时流速分布特性定床试验研究[J].西安建筑科技大学学报:自然科学版,2013,45(06):822-828.[doi:10.15986/j.1006-7930.2013.06.012]
　YAN Jian-ke,JIAO Chen,LONG Tao,et al.Bed fixed experimental study on velocity distribution of bridge piers with different intersection angles between bridge axle and flow direction[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(06):822-828.[doi:10.15986/j.1006-7930.2013.06.012]
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桥墩轴向与水流成不同夹角时流速分布特性定床试验研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
45
期数:
2013年06期
页码:
822-828
栏目:
出版日期:
2013-12-31

文章信息/Info

Title:
Bed fixed experimental study on velocity distribution of bridge piers with different intersection angles between bridge axle and flow direction
文章编号:
1006-7930(2013)06-0822-07
作者:
严建科1; 2; 焦 臣1; 龙 涛1; 杨久诚1; 沈 波2
(1.中交第一公路勘察设计研究院有限公司,陕西 西安710075; 2.长安大学,陕西 西安 710064)
Author(s):
YAN Jian-ke 1; 2; JIAO Chen 1; LONG Tao 1; YANG Jiu-cheng 1; SHEN Bo 2
(1.Chinese First Institute Limited Corporation of Highway Survey & Design, Xian 710075,China; 2.Changan University, Xian 710064,China)
关键词:
桥墩; 夹角; 流速; 水力学特性; 定床
Keywords:
pier;  intersection angle;  velocity distribution;  hydrodynamic characteristic;  fixed bed
分类号:
U 442.3+9
DOI:
10.15986/j.1006-7930.2013.06.012
文献标志码:
A
摘要:
通过测量按照桥轴与水流方向成不同夹角布置的多级顺水圆柱墩周围各测点的流速,研究多级顺水桥墩流速分布特性,以及多级顺水桥墩的水力学特性.结果表明:桥轴向与水流方向按照不同夹角布置,多排桥墩会互有影响,靠近下游桥墩的水流结构会受到上游桥墩影响,其互相干扰是由于邻近、剪切、以及尾流三类机制造成的;通过试验研究可知,当桥轴方向垂直水流方向布置时,流速在墩前、墩后变化最大,但影响范围最小,随着桥轴方向与水流方向夹角减小,流速在墩前、墩后紊动变小,但影响范围加大.
Abstract:
By measuring the of velocity around multi-level bridge piers with different intersection angles between bridge axle and flow direction in fixed bed, the paper studies velocity distribution and hydrodynamic characteristics of bridge piers with different intersection angles between bridge axle and flow direction. The results show that bridge piers are arranged at different intersection angles between bridge axle and flow direction; that the piers influence each other, and that the piers in the upstream influence flow structure of the piers in the downstream. The disturbance can be attributed to three causes: near, shearing, and wake stream. When bridge piers are arranged at orthogonality between bridge axle and flow direction, velocity fluctuation in front of the piers or behind the pier is the biggest, but the affected region is the smallest. The smaller the intersection angle between bridge axle and flow direction bridge piers are arranged, the bigger velocity fluctuation in front of the piers or behind the pier, but the smaller the affected region

参考文献/References:

[1] 米居正. 库区下游桥梁基础冲刷与防护[J]. 中国公路学报,1993(2) :35-37.
MIJu-zheng. Scouring and protection of bridge foundation in the downstream reservoir area [J]. China Journal of Highway and Transport,1993, (2):35-37.
[2] 李 玲, 李玉梁, 祁学春, 等. 浅水层圆柱绕流流动模式的试验研究[J]. 自然科学进展, 2000, 10(6) :554-555.
LI ling, LI Yu-liang, QI Xue-chun, et al. Experimental study of cylinder turbulent flow patterns in a shallow water layer [J].Progress in Natural Science, 2000, 10(6) :554-555
[3] 王兴奎, 邵学军. 河流动力学基础[M]. 北京: 中国水利水电出版社,2002.
WANG Xing-kui. SHAO Xue-jun. The basis ofriver dynamics[M].Beijing: China Water Power Press, 2002
[4] 季日臣, 刘志强, 张多平. 山区斜交桥渡水流特性的分析[J]. 甘肃科学学报, 1999, 11(4) :31 -34.
JI Ri-chen. LIU Zhi-qiang. ZHANG Duo-ping. On characteristics of skew bridge hydraulics[J]. Journal of Gansu Sciences, 1999,11(4) :31 -34.
[5] 季日臣, 何文社, 房振叶. 斜交桥壅水试验研究与理论探讨[J]. 水科学进展,2007, 18(4): 504-508.
JI Ri-chen. HE Wen-she. FANG Zhen-ye. Experimental and theoretical study of skew bridge backwater[J].Advances in Water Science, 2007,18(4) :504-508.
[6] 李付军, 张佰战, 林桂宾. 斜交桥下水流流向偏转角度的理论分析[J]. 水科学进展, 2005,16(5): 634-637.
LI Fu-jun, ZHANG Bai-zhan, LIN Gui-bin. Theoretical analysis of the deflection degree of the flow direction underbevel bridge[J].Advances in Water Science, 2005, 16(5): 634-637.
[7 ] 凌建明 , 林小平 , 赵鸿铎. 圆柱形桥墩附近三维流场及河床局部冲刷分析 [J]. 同济大学学报,2007(5) :582-586.
LING Jian-ming, LIN Xiao-ping, ZHAO Hong-duo. Analysis of Three-Dimensional Flow Field and Local Scour of River bed Around Cylindrical Pier[J].Journal of Tongji University, 2007(5) :582-586.

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备注/Memo

备注/Memo:
收稿日期:2013-02-25 修改稿日期:2013-11-15
基金项目:中交第一公路勘察设计研究院有限公司科技项目(KJYF2005-A04)
作者简介:严建科(1979-),男,陕西眉县人,博士,高级工程师,主要从事在役桥梁承载能力及技术状况评价研究.
更新日期/Last Update: 2015-10-05