上海交通大学学报 ›› 2021, Vol. 55 ›› Issue (4): 365-371.doi: 10.16183/j.cnki.jsjtu.2019.268
所属专题: 《上海交通大学学报》2021年“土木建筑工程”专题; 《上海交通大学学报》2021年12期专题汇总专辑
收稿日期:
2019-09-20
出版日期:
2021-04-28
发布日期:
2021-04-30
通讯作者:
陈锦剑
E-mail:chenjj29@sjtu.edu.cn
作者简介:
金小凯(1995-),男,江苏省盐城市人,硕士生,研究方向为海洋岩土与桩基工程
基金资助:
JIN Xiaokai, CHEN Jinjian(), LIAO Chencong
Received:
2019-09-20
Online:
2021-04-28
Published:
2021-04-30
Contact:
CHEN Jinjian
E-mail:chenjj29@sjtu.edu.cn
摘要:
针对浅海环境下的单桩基础,在水槽试验室中建立砂土-桩基-波浪缩尺模型,进行波浪作用下单桩静载荷试验.测试桩周海床土孔隙水压力和不同荷载作用下的桩基沉降,分析在波浪荷载下单桩和海床土相互作用机理和单桩荷载沉降曲线特性,探讨不同桩径下桩周海床土超静孔压(ps)对单桩竖向承载力的影响.结果表明:单桩的存在会增大桩周海床土ps,同时减小桩底海床土ps;桩径越大,桩周ps越大.与无波浪影响的情况相比,波浪荷载作用下的单桩承载力较小,相同荷载水平下的桩顶沉降增加显著,且沉降增大的趋势在桩径较大时更明显.研究表明在海洋桩基的设计过程中要关注波浪荷载对桩基承载力的影响.
中图分类号:
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.
[1] | LI X J, GAO F P, YANG B, et al. Wave-induced pore pressure responses and soil liquefaction around pile foundation[J]. International Journal of Offshore & Polar Engineering, 2011, 21(3):233-239. |
[2] |
SUI T T, ZHANG C, GUO Y K, et al. Three-dimensional numerical model for wave-induced seabed response around mono-pile[J]. Ships and Offshore Structures, 2016, 11(6):667-678.
doi: 10.1080/17445302.2015.1051312 URL |
[3] |
SUI T, ZHANG C, JENG D S, et al. Wave-induced seabed residual response and liquefaction around a mono-pile foundation with various embedded depth[J]. Ocean Engineering, 2019, 173:157-173.
doi: 10.1016/j.oceaneng.2018.12.055 URL |
[4] |
QI W G, GAO F P. Equilibrium scour depth at offshore monopile foundation in combined waves and current[J]. Science China Technological Sciences, 2014, 57(5):1030-1039.
doi: 10.1007/s11431-014-5538-9 URL |
[5] |
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 |
[6] |
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 |
[7] | 胡翔, 陈锦剑. 波浪荷载下海底单桩与土共同作用的数值分析[J]. 岩土工程学报, 2015, 37(Sup.2):217-221. |
HU Xiang, CHEN Jinjian. Numerical analysis of interactive behavior between pile and seabed soil under wave load[J]. Geotechnical Engineering, 2015, 37(Sup.2):217-221. | |
[8] | 胡翔, 陈锦剑, 王建华. 短峰波作用下饱和海床中的单桩响应分析[J]. 上海交通大学学报, 2016, 50(11):1737-1741. |
HU Xiang, CHEN Jinjian, WANG Jianhua. Analysis of a single pile response in a saturated seabed under short-crested wave[J]. Journal of Shanghai Jiao Tong University, 2016, 50(11):1737-1741. | |
[9] |
EICHER J A, GUAN H, JENG D S. Stress and deformation of offshore piles under structural and wave loading[J]. Ocean Engineering, 2003, 30(3):369-385.
doi: 10.1016/S0029-8018(02)00031-8 URL |
[10] | 陈锦剑, 张忆州, 廖晨聪. 椭圆余弦波作用下考虑桩身振动的桩-土相互作用[J]. 上海交通大学学报, 2019, 53(1):89-96. |
CHEN Jinjian, ZHANG Yizhou, LIAO Chencong. Interaction between mono-pile and porous seabed under cnoidal wave and pile rocking[J]. Journal of Shanghai Jiao Tong University, 2019, 53(1):89-96. | |
[11] |
YASUHARA K. Postcyclic undrained strength for cohesive soils[J]. Journal of Geotechnical Engineering, 1994, 120(11):1961-1979.
doi: 10.1061/(ASCE)0733-9410(1994)120:11(1961) URL |
[12] |
ZHANG Y Z, LIAO C C, CHEN J J, et al. Numerical analysis of interaction between seabed and mono-pile subjected to dynamic wave loadings considering the pile rocking effect[J]. Ocean Engineering, 2018, 155:173-188.
doi: 10.1016/j.oceaneng.2018.02.041 URL |
[13] | 庄慧娜, 王星, 蒋建平. 海洋桩基在波浪荷载作用下的响应研究[J]. 科技资讯, 2013, 11(28):32. |
ZHUANG Huina, WANG Xing, JIANG Jianping. Study on the response of marine pile foundation under wave load[J]. Science Information, 2013, 11(28):32. | |
[14] | 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 study on the effect of waves on the seabed[J]. Journal of Civil Engineering, 2007, 40(9):101-109. | |
[15] |
LIN X F, ZHANG J S, WANG R S, et al. Scour around a mono-pile foundation of a horizontal axis tidal stream turbine under steady current[J]. Ocean Engineering, 2019, 192:106571.
doi: 10.1016/j.oceaneng.2019.106571 URL |
[16] | 李彦初, 梁发云. 考虑土体冲刷应力历史的单桩承载性状分析[J]. 地下空间与工程学报, 2017, 13(6):1624-1629. |
LI Yanchu, LIANG Fayun. Analysis of bearing behavior of monopile considering soil erosion stress history[J]. Journal of Underground Space and Engineering, 2017, 13(6):1624-1629. |
[1] | 刘晨晨, 张琪, 李明广, 周香莲, 黎蔚杰. 波浪与地震荷载共同作用下桩的动力响应[J]. 上海交通大学学报, 2021, 55(6): 638-644. |
阅读次数 | ||||||
全文 |
|
|||||
摘要 |
|
|||||