Experimental Investigation of Dynamic Response of Pile-Supported Wharf in Liquefiable Ground Under Wave Action

doi:10.16183/j.cnki.jsjtu.2022.163

Abstract

Abstract:

Pile-supported wharf (PSW) is widely used in the deep-water port engineering construction, most of which are located in liquefiable ground. The effect of wave action on the working performance of PSW in liquefiable ground cannot be ignored, but few studies have been reported. This study performs the wave flume test of PSW in liquefiable ground considering the soil-structure-wave interaction. This test really reproduces the operating condition of PSW, and explores the internal response difference of wharf structure under wave. The influence of wave height on dynamic response of the PSW system is discussed systematically. The result shows that the acceleration and displacement of the PSW deck gradually increase first and finally remain relatively stable with the increase of wave action. The hydrodynamic pressure and deformation of each pile in pile group are obviously different, and the response variation is related to the pile position. The pore pressure of the soil layer in the free field and around the pile decreases with the increase of depth, and the existence of the pile group can reduce the pore pressure in the soil layer around the pile, and increase the acceleration of the soil layer. The effect of wave height on the soil layer decreases with the increase of depth. The above results can provide reference for the similar PSW test under wave and the support for the design and wave protection of PSW.

Key words: wave action, pile-supported wharf, dynamic response, liquefiable ground, model test

CLC Number:

U656.113

BI Jianwei, SU Lei, XIE Libo, ZHANG Yu, LING Xianzhang. Experimental Investigation of Dynamic Response of Pile-Supported Wharf in Liquefiable Ground Under Wave Action[J]. Journal of Shanghai Jiao Tong University, 2023, 57(11): 1442-1454.

Figures/Tables 20

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

Fig.16

Fig.17

Fig.18

Fig.19

Fig.20

References 31

[1]	EARLE M D. Extreme wave conditions during Hurricane Camille[J]. Journal of Geophysical Research, 1975, 80(3): 377-379. doi: 10.1029/JC080i003p00377 URL
[2]	YOSHIMITSU T, TOMOHIRO Y, BENITO M, et al. Initial report of JSCE-PICE joint survey on the storm surge disaster caused by typhoon Haiyan[J]. Coastal Engineering Journal, 2014, 56(1): 1450006.
[3]	邓振洲, 冯建国. 印尼某电厂码头防波堤破坏原因分析及修复方案[J]. 港工技术, 2018, 55(6): 71-74.
	DENG Zhenzhou, FENG Jianguo. Renovation plan and damage causes analysis of breakwater of a power plant terminal in Indonesia[J]. Port Engineering Technology, 2018, 55(6): 71-74.
[4]	王小雯, 张建民. 随机波浪作用下饱和砂质海床弹塑性动力响应规律[J]. 工程力学, 2018, 35(6): 240-248.
	WANG Xiaowen, ZHANG Jianmin. Elasto-plastic dynamic behaviors of saturated sandy seabed under random waves[J]. Engineering Mechanics, 2018, 35(6): 240-248.
[5]	王立忠, 潘冬子, 潘存鸿, 等. 波浪对海床作用的试验研究[J]. 土木工程学报, 2007, 40(9): 101-109.
	WANG Lizhong, PAN Dongzi, PAN Cunhong, et al. Experimental investigation on wave-induced response of seabed[J]. China Civil Engineering Journal, 2007, 40(9): 101-109.
[6]	李安龙, 李广雪, 林霖, 等. 波浪作用下粉土海床中的孔压响应试验研究[J]. 海洋通报, 2012, 31(1): 15-20.
	LI Anlong, LI Guangxue, LIN Lin, et al. Experiment study on pore pressure responses to wave action on silt seabed[J]. Marine Science Bulletin, 2012, 31(1): 15-20.
[7]	ZHANG J, JIANG Q, JENG D S, et al. Experimental study on mechanism of wave-induced liquefaction of sand-clay seabed[J]. Journal of Marine Science and Engineering, 2020, 8(2): 66-1-16. doi: 10.3390/jmse8020066 URL
[8]	钟佳玉, 郑永来, 倪寅. 波浪作用下砂质海床孔隙水压力的响应规律实验研究[J]. 岩土力学, 2009, 30(10): 3188-3193.
	ZHONG Jiayu, ZHENG Yonglai, NI Yin. Experimental study of response pattern of pore water pressure on sandy seabed under wave action[J]. Rock and Soil Mechanics, 2009, 30(10): 3188-3193.
[9]	LIU B, JENG D S, YE G L, et al. Laboratory study for pore pressures in sandy deposit under wave loading[J]. Ocean Engineering, 2015, 106: 207-219. doi: 10.1016/j.oceaneng.2015.06.029 URL
[10]	金小凯, 陈锦剑, 廖晨聪. 波浪荷载对单桩承载力影响的水槽模拟试验研究[J]. 上海交通大学学报, 2021, 55(4): 365-371.
	JIN Xiaokai, CHEN Jinjian, LIAO Chencong. Wave flume simulation experiment on influence of wave load on bearing capacity of monopile[J]. Journal of Shanghai Jiao Tong University, 2021, 55(4): 365-371.
[11]	QI W G, LI C F, JENG D S, et al. Combined wave-current induced excess pore-pressure in a sandy seabed: Flume observations and comparisons with theoretical models[J]. Coastal Engineering, 2019, 147: 89-98. doi: 10.1016/j.coastaleng.2019.02.006 URL
[12]	QI W G, GAO F P. Physical modeling of local scour development around a large-diameter monopile in combined waves and current[J]. Coastal Engineering, 2014, 83: 72-81. doi: 10.1016/j.coastaleng.2013.10.007 URL
[13]	WANG S H, WANG P D, ZHAI H L, et al. Experimental study for wave-induced pore-water pressures in a porous seabed around a mono-pile[J]. Journal of Marine Science and Engineering, 2019, 7(7): 237. doi: 10.3390/jmse7070237 URL
[14]	张启博. 波浪作用下单桩周围砂质海床瞬态响应研究[D]. 成都: 西南交通大学, 2019.
	ZHANG Qibo. Wave induced transient sandy seabed response around a single pile foundation[D]. Chengdu: Southwest Jiaotong University, 2019.
[15]	胡翔. 波浪作用下单桩与饱和海床的相互作用研究[D]. 上海: 上海交通大学, 2016.
	HU Xiang. The study on interactions between single pile and saturated seabed under the effect of wave[D]. Shanghai: Shanghai Jiao Tong University, 2016.
[16]	吕豪杰, 周香莲, 王建华. 波浪荷载作用下桩周土体孔隙水压力试验研究[J]. 上海交通大学学报, 2018, 52(7): 757-763.
	LÜ Haojie, ZHOU Xianglian, WANG Jianhua. Laboratory study of wave-induced pore pressure around the pile[J]. Journal of Shanghai Jiao Tong University, 2018, 52(7): 757-763.
[17]	ZHANG Q, ZHOU X L, WANG J H, et al. Wave-induced seabed response around an offshore pile foundation platform[J]. Ocean Engineering, 2017, 130: 567-582. doi: 10.1016/j.oceaneng.2016.12.016 URL
[18]	TONG D G, LIAO C C, JENG D S, et al. Three-dimensional modeling of wave-structure-seabed interaction around twin-pile group[J]. Ocean Engineering, 2017, 145: 416-429. doi: 10.1016/j.oceaneng.2017.09.049 URL
[19]	向宝山, 王少华, 蔡子龙, 等. 海洋环境中复合桩基水平方向波浪荷载研究[J]. 西南交通大学学报, 2018, 53(1): 102-108.
	XIANG Baoshan, WANG Shaohua, CAI Zilong, et al. Numerical study of horizontal wave load on composite pile foundation in marine environment[J]. Journal of Southwest Jiaotong University, 2018, 53(1): 102-108.
[20]	潘良, 祝兵, 张家玮, 等. 考虑多土层的波-流荷载下跨海桥梁桩基动力响应分析[J]. 铁道标准设计, 2020, 64(12): 76-82.
	PAN Liang, ZHU Bing, ZHANG Jiawei, et al. Dynamic response of pile foundation of cross sea bridge to wave-current load in multiple soil layers[J]. Railway Standard Design, 2020, 64(12): 76-82.
[21]	段伦良, 张启博, 黄博, 等. 极端波浪荷载作用下近海桥梁下方海床瞬态液化稳定性研究[J]. 岩土力学, 2017, 38(7): 2113-2118.
	DUAN Lunliang, ZHANG Qibo, HUANG bo, et al. Study of transient liquefaction stability of seabed beneath offshore bridge under extreme wave loading[J]. Rock and Soil Mechanics, 2017, 38(7): 2113-2118.
[22]	黄雯, 冯谊武, 张海龙. 波浪作用下的群桩受力及优化布置[J]. 桥梁建设, 2016, 46(3): 51-56.
	HUANG Wen, FENG Yiwu, ZHANG Hailong. Mechanical properties and optimal arrangement of group piles acted by wave forces[J]. Bridge Construction, 2016, 46(3): 51-56.
[23]	陈林雅, 郑东生, 王盼娣, 等. 基于波浪-多孔介质海床-结构物耦合模型的单桩基础波浪力分析[J]. 工程力学, 2019, 36(11): 72-82.
	CHEN Linya, ZHENG Dongsheng, WANG Pandi, et al. Analysis of wave force acting on the monopile based on wave-porous seabed-structure coupled model[J]. Engineering Mechanics, 2019, 36(11): 72-82.
[24]	ZHANG G F, JI Z S, LI T L, et al. Calculation of wave and current loads on launching offshore jacket[J]. Journal of Marine Science and Application, 2006, 5(4): 1-7.
[25]	雷欣欣. 群桩在波浪作用下的水动力特性研究[D]. 大连: 大连理工大学, 2013.
	LEI Xinxin. Research on hydrodynamic performance of pile array under wave action[D]. Dalian: Dalian University of Technology, 2013.
[26]	陈连鑫. 波浪力作用下跨海桥梁动力反应及疲劳损伤研究[D]. 大连: 大连理工大学, 2021.
	CHEN Lianxin. Study on dynamic response and fatigue damage of sea-crossing bridges under wave loads[D]. Dalian: Dalian University of Technology, 2021.
[27]	王元战, 龙俞辰, 王禹迟, 等. 离岸深水全直桩码头承载特性与简化计算方法[J]. 岩土工程学报, 2013, 35(9): 1573-1579.
	WANG Yuanzhan, LONG Yuchen, WANG Yuchi, et al. Bearing behavior and simplified calculation method of all-vertical-piled wharf in offshore deep water[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(9): 1573-1579.
[28]	王元战, 贺林林, 王朝阳. 离岸深水全直桩码头动力简化计算方法研究[J]. 岩土力学, 2014, 35(10): 2969-2976.
	WANG Yuanzhan, HE Linlin, WANG Chaoyang. Research on dynamic simplified calculation method of all-vertical-piled wharf in offshore deep-water[J]. Rock and Soil Mechanics, 2014, 35(10): 2969-2976.
[29]	肖文智, 王登婷, 冯卫兵, 等. 高桩码头上部结构波浪力物理模型试验研究[J]. 水运工程, 2012(3): 50-54.
	XIAO Wenzhi, WANG Dengting, FENG Weibing, et al. Physical model test of wave force on upper structure of high-piled wharf[J]. Port & Waterway Engineering, 2012(3): 50-54.
[30]	ZHANG Q H, SUN X P, WANG Y Z, et al. Dynamic characteristics and simplified numerical methods of an all-vertical-piled wharf in offshore deep water[J]. China Ocean Engineering, 2015, 29(5): 705-718. doi: 10.1007/s13344-015-0050-y URL
[31]	卢生军, 陈国平. 波浪上托力作用下高桩码头结构的动力分析[J]. 水运工程, 2013 (12): 52-56.
	LU Shengjun, CHEN Guoping. Dynamic analysis of high-pile wharf under wave uplift force[J]. Port & Waterway Engineering, 2013 (12): 52-56.