三维波浪作用下钢吊箱围堰下放过程受力研究

黄博; 段伦良; 祝兵

doi:10.3969/j.issn.0258-2724.2018.03.013

三维波浪作用下钢吊箱围堰下放过程受力研究

doi: 10.3969/j.issn.0258-2724.2018.03.013

基金项目:

四川省应用基础研究重大前沿项目 2017JY0003

国家自然科学基金资助项目 51178397

详细信息

作者简介:
黄博(1992-), 男, 博士研究生, 研究方向为桥梁结构动力学及桥梁风浪耦合动力学, E-mail:bohuang-swjtu@my.swjtu.edu.cn

中图分类号: U445.556
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- 文章访问数: 493
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- 被引次数: 0
出版历程
- 收稿日期: 2016-09-28
- 刊出日期: 2018-06-25

Study of Three-Dimensional Wave Forces on Lowering of Steel-Suspending Cofferdam

摘要

摘要: 为了解跨海大桥桥台施工过程中哑铃型钢吊箱围堰与波浪的相互作用，研究了围堰下放过程中所受的波浪力.基于RANS方程和k-ε湍流方程建立了波浪-围堰相互作用三维数值模型，并采用流体体积法捕捉自由液面.该模型不但考虑了钢护筒对围堰周围波浪场影响，而且考虑了围堰的整个动态下放过程.结果表明：钢护筒的存在以及围堰动态下放过程均会对围堰周围波浪场产生显著影响，考虑钢吊箱围堰动态下放过程时的受力较固定淹没深度处围堰的受力增大10%；随着波浪高度和波浪周期增大，钢吊箱围堰在下放过程中所受最大水平力呈现增大趋势.
- 波浪作用 /
- 围堰 /
- 三维模型 /
- 数值模拟
Abstract: In order to understand the interaction between dumbbell shaped steel boxed cofferdam and wave during the construction of the bridge across the sea. The interaction between a steel-suspending cofferdam and wavesis studied, to investigate the influence of waves on the construction progress of the large dumbbell cofferdam. A numerical model for wave-cofferdam interactions is established, in which the Reynolds-averaged Navier-Stokes equations and k-ε model are used to generate waves, while the VOF(volume of fluid) method is used to trace the water surfaces. The influence of the steel tube and the lowering of the cofferdam on the wave field around the cofferdam are considered. The numerical simulation results show that the steel tube and lowering of the cofferdam have significant effects on the wave field around the cofferdam. Consideration of the lowering of the steel-suspending-cofferdam, the wave forces on the cofferdam will be 10% larger than that on the cofferdam with a certain submerged depth. With increments of the wave height and wave period, the wave forces acting on the lowering steel-suspending cofferdam tend to increase.
- wave effect /
- cofferdams /
- three-dimensional models /
- numerical simulation

HTML全文

图 1 围堰几何尺寸(单位:m)

Figure 1. Dimensions of the cofferdam (unit: m)

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图 2 波浪-围堰相互作用

Figure 2. Sketch of wave-cofferdam interactions

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图 3 30 s时波面图

Figure 3. Water surface at 30 s during wave transportation

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图 4 不同网格尺寸比例对应的最大水平波浪力

Figure 4. Variations of horizontal wave force versus different meshsizes

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图 5 数值模型y-z平面的网格划分

Figure 5. Sketch of mesh generation for the y-z plane of the numerical model

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图 6 围堰周围波浪压力场随时间变化

Figure 6. Variations of the wave pressure around the cofferdam over time

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图 7 围堰周围流速矢量分布

Figure 7. Distributions of velocity around the cofferdam

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图 8 不同工况下钢吊箱围堰所受波浪力的变化

Figure 8. Variations of wave forces on the steel-suspending-cofferdam under different conditions

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图 9 围堰所受最大水平力随波高变化

Figure 9. Variations of maximum horizontal wave force on cofferdam versus wave heights

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图 10 围堰所受最大水平力随周期的变

Figure 10. Variations of maximum horizontal wave force on cofferdam versus wave periods

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表 1 数值计算结果与实验结果的比较

Table 1. Comparison between numerical results and experimental data

kN
波浪力		频率/s^-1, 波高/cm
波浪力		4.33, 15.87	4.83, 16.20	5.24, 15.89	5.71, 10.19	6.28, 6.25	6.98, 3.98
F_x=ρgA₁a²	实验值	4.54	4.58	5.12	5.54	5.22	5.19
F_x=ρgA₁a²	计算值	4.68	4.49	5.23	5.77	5.41	5.02
F_y=ρgA₁a²	实验值	1.26	0.99	0.85	0.74	0.77	0.71
F_y=ρgA₁a²	计算值	1.29	1.05	0.84	0.69	0.79	0.70

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参考文献(15)

徐伟, 徐赞云, 吴佳云.随机波浪力下超大型钢吊箱围堰动力响应分析[J].沈阳工业大学学报, 2012, 34(4):461-468. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203730089

XU Wei, XU Zanyun, WU Jiayun. Dynamic response analysis on ultra-large steel suspension box cofferdam under random wave force[J]. Journal of Shenyang University of Technology, 2010, 34(4):461-468. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203730089

谢小松, 徐伟, 宋灿, 等.深水高桩承台哑铃状钢吊箱在地震作用下的响应分析[J].结构工程师, 2005, 21(6):43-45. doi: 10.3969/j.issn.1005-0159.2005.06.010

XIE Xiaosong, XU Wei, SONG Can, et al. Responseanalysis of elevated pile foundation dumbbell-shapesteel suspending cofferdam in deep water under seismicaction[J]. Structural Engineers, 2005, 21(6):43-45. doi: 10.3969/j.issn.1005-0159.2005.06.010

徐伟, 宋灿, 骆艳斌, 等.深水高桩承台钢吊箱在风荷载作用下的动力性能分析[J].工业建筑, 2007, 37(7):82-84. doi: 10.3321/j.issn:1000-8993.2007.07.024

XU Wei, SONG Can, LUO Yanbin, et al. Analysisof dynamic property of elevated pile foundation steelsuspending cofferdam in deep water under wind load[J]. Industrial Construction, 2007, 37(7):82-84. doi: 10.3321/j.issn:1000-8993.2007.07.024

XU Fei, LI Shucai, ZHANG Qianqing, et al. Analysis and design implications on stability of cofferdam subjected to water wave action[J]. Marine Georesources & Geotechnology, 2016, 34:181-187. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cf06e53d72eac82bbcb2135c45811c5d

祝兵, 康啊真, 邢帆, 等.三维波浪与圆端形吊箱围堰相互作用的数值模拟[J].桥梁建设, 2013, 43(6):82-87. http://d.old.wanfangdata.com.cn/Periodical/qljs201306014

ZHU Bing, KANG Azhen, XING Fan, et al. Numerical simulation of interaction between three-dimensional wave and round-end boxed cofferdam[J]. Bridge Construction, 2013, 43(6):82-87. http://d.old.wanfangdata.com.cn/Periodical/qljs201306014

方庆贺.跨海近岸桥梁极端波浪作用研究[D].哈尔滨: 哈尔滨工业大学, 2012. http://www.wanfangdata.com.cn/details/detail.do?_type=degree&id=D238698

康啊真, 祝兵, 邢帆.基于坐标和IBM的大型圆柱波浪力数值模拟[J].西南交通大学学报, 2014, 49(2):233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008

KANG Azhen, ZHU Bing, XING Fan. Numerical simulation of wave force on large circular cylinder based on coordinate and immersed boundary method[J]. Journal of Southwest Jiaotong University, 2014, 49(2):233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008

刘浪, 杨万理, 李乔.深水桥梁墩水耦合抗震分析方法研究[J].西南交大学报, 2015, 50(3):449-453. http://www.cnki.com.cn/Article/CJFDTOTAL-XNJT201503010.htm

LIU Lang, YANG Wanli, LI Qiao. Seismic analysis method of deep-water bridge pier and water coupling[J]. Journal of Southwest Jiaotong University, 2015, 50(3):449-453. http://www.cnki.com.cn/Article/CJFDTOTAL-XNJT201503010.htm

陶建华, 刘连武.波浪和水流对大直径圆柱的共同作用力[J].水动力学研究与进展, 1993, 8(3):265-272. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000002596331

TAO Jianhua, LIU Lianwu. Wave-current forces on alarge vertical cylinder[J].Journal of Hydrodynamics, 1993, 8(3):265-272. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000002596331

GHAMRY E I. Wave forces on a dock[R].Berkeley: University of California, Hydraulic Engineering Laboratory, 2006.

DOUGLASS S L, CHEN Q, OLSEN J M, et al. Wave forces on bridge decks[R]. Washington D. C.: Federal Highway Administration, Office of Bridge Technology, 2006.

XIAO H, HUANG W, TAO J, et al. Numerical modeling of wave-current forces acting on horizontal cylinder of marine structures by VOF method[J]. Ocean Engineering, 2013, 67(3):58-67. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=c07beaae99764b5289d05af756faec96

LARSEN J, DANCY H. Open boundaries in short wave simulations-a new approach[J]. Coast Eng., 1983, 7(3), 85-97. doi: 10.1016-0378-3839(83)90022-4/

HIRT C W, NICHOLSB D. Volume of fluid (VOF) method for the dynamics of free boundaries[J]. J. Comput. Phys., 1981, 39:201-225. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=0520120202876601

赵海涛, 滕斌, 李广伟, 等.竖直截断圆柱一阶波浪力的实验研究[J].中国海洋平台, 2003, 18(4):12-17. doi: 10.3969/j.issn.1001-4500.2003.04.003

ZHAO Haitao, TENG Bin, LI Guangwei, et al. An Experimental study of first-harmonic wave force on vertical truncated cylinder[J]. China Offshore Platform, 2003, 18(4):12-17. doi: 10.3969/j.issn.1001-4500.2003.04.003

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文章访问数: 493
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三维波浪作用下钢吊箱围堰下放过程受力研究

doi: 10.3969/j.issn.0258-2724.2018.03.013

作者简介: 黄博(1992-), 男, 博士研究生, 研究方向为桥梁结构动力学及桥梁风浪耦合动力学, E-mail:bohuang-swjtu@my.swjtu.edu.cn

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Study of Three-Dimensional Wave Forces on Lowering of Steel-Suspending Cofferdam

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目录

作者简介:
黄博(1992-), 男, 博士研究生, 研究方向为桥梁结构动力学及桥梁风浪耦合动力学, E-mail:bohuang-swjtu@my.swjtu.edu.cn