1.天津大学水利工程仿真与安全国家重点实验室,天津 300072
2.天津大学岩土工程研究所,天津 300072
姬海波(1991-),男,硕士研究生。主要从事海洋土力学方面的研究。Email:646796717@qq.com
王建华(1955-),男,教授,博导。主要从事土动力学与海洋岩土工程方面的研究。Email: tdwjh@eyou.com
收稿:2018-10-05,
修回:2019-01-14,
纸质出版:2020-10-15
移动端阅览
姬海波,王建华,范怡飞.桩靴贯入与拔出引起的邻近桩附加及残余荷载分析[J].防灾减灾工程学报,2020,40(05):732-740.
JI Haibo,WANG Jianhua,FAN Yifei.Analysis of Additional and Residual Loads of an Adjacent Pile Induced by Spudcan Penetration and Extraction[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(05):732-740.
姬海波,王建华,范怡飞.桩靴贯入与拔出引起的邻近桩附加及残余荷载分析[J].防灾减灾工程学报,2020,40(05):732-740. DOI: 10.13409/j.cnki.jdpme.2020.05.007.
JI Haibo,WANG Jianhua,FAN Yifei.Analysis of Additional and Residual Loads of an Adjacent Pile Induced by Spudcan Penetration and Extraction[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(05):732-740. DOI: 10.13409/j.cnki.jdpme.2020.05.007.
自升式钻井船桩靴贯入与拔出土层后会导致周围土体发生不可恢复的大变形,从而使邻近平台桩基础受到附加荷载作用。目前,对于钻井船插拔桩引起的附加荷载少有分析,且没有较成熟的计算方法。为此,建议了一种分析钻井船插拔桩附加荷载的方法。该方法首先通过耦合欧拉⁃拉格朗日(CEL)大变形有限元算法计算出桩靴贯入与拔出土层时邻近桩的水平位移;然后依据计算出的桩身水平位移,利用正交函数最小二乘法确定桩身位移分布函数,进而依据主动桩的
p
―
y
关系曲线及梁的弯曲理论确定出桩身受到的附加荷载;最后利用非线性地基梁模型,分析附加荷载作用下的桩身内力响应。通过对软粘土中钻井船插拔桩离心模型试验的数值仿真模拟,验证了这种分析附加及残余荷载方法的可行性。
Unrecoverable deformation of the surrounding soils will be induced by the jack-up spudcan penetration and extraction in the seabed, leading to additional loads on the adjacent platform piled foundation. At present, there is little research and mature calculation method of the additional loads induced by spudcan penetration and extraction. Therefore, in this paper, a method of calculating the additional loads induced by spudcan penetration and extraction is established. First, the lateral deflection of adjacent pile is obtained using the Coupled Euler-Lagrange (CEL) finite element method when spudcan penetration and extraction from stratum, Then, according to the pile deflection distributions along the shaft extracted from the numerical model, the function of the pile deflection distribution is obtained by the means of least square method of orthogonal functions. Furthermore, the additional loads is determined through the
p
―
y
relation curve of the active pile and the beam bending theory. Finally, the pile response along the shaft is calculated by applying additional loads on the non-linear foundation beam model. The feasibility of the proposed method to analyze the additional and residual loads is verified by numerical simulation of a centrifuge model test of spudcan penetration and extraction in soft clay.
Stewart D P . Influence of jack-up operation adjacent to a piled structure [C]// Proceedings of the International symposium on Frontiers in Offshore Geotechnics , Perth, Australia , 2005 : 543 - 549 .
Xie Y . Centrifuge model study on spudcan-pile interaction[D] . Singapore : Department of Civil Environmental Engineering, National University of Singapore . 2009 .
兰 斐 . 钻井船插桩对邻近平台桩基影响的数值分析 [D]. 天津 : 天津大学 , 2015 .
Lan F . Numerical analyses on effects of the spudcan penetration on piles of adjacent platform [D]. Tianjin : Tianjin University , 2015 . (in Chinese)
郭绍曾 , 刘 润 , 洪兆徽 , 等 . 插桩过程对邻近平台桩基础的影响研究 [J]. 地震工程学报 , 2015 , 37 ( 2 ): 446 - 452 .
Guo Sh Z , Liu R , Hong Zh H , et al . Influence of spudcan penetration on pile foundations on adjacent platform [J]. China Earthquake Engineering Journal , 2015 , 37 ( 2 ): 446 - 452 . (in Chinese)
Qiu G , Sascha H . Controlled installation of spudcan foundations on loose sand overlying weak clay [J]. Marine Structures , 2011 , 24 ( 4 ): 528 - 550 .
Li Y , Zhou Y R , Tao J H , et al . Numerical study of spudcan penetration induced loading on an adjacent jacket pile in soft clay [C]// Proceedings of the 25th International Ocean and Polar Engineering Conference , Hawaii, USA , 2015 : 692 - 699 .
李 亚 , 李书兆 , 张 超 . 黏土中自升式钻井船插桩对邻近桩基影响的分析方法 [J]. 岩土力学 , 2018 , 39 ( 5 ): 1 891 - 1 900 .
Li Y , Li Sh Zh , Zhang Ch . An approach to analyze effects of spudcan penetration of a jack-up rig on adjacent piles in cohesive soils [J]. Rock and Soil Mechanics , 2018 , 39 ( 5 ): 1 891 - 1 900 . (in Chinese)
American Petroleum Institute . Geotechnical and Foundation Design Considerations [M]. Washington D S : ANSI/API Recommended Practice 2GEO First Edition , 2011 .
范逸飞 , 王建华 , 戴笑如 . 基于土体的大变形分析钻井船插桩对邻近桩的影响 [J]. 岩土工程学报 , 2018 , 40 ( 1 ): 446 - 452 .
Fan Y F , Wang J H , Dai X R . Analysis of effects of spudcan penetration on adjacent piles based on soil LDFE calculation [J]. Chinese Journal of Geotechnical Engineering , 2018 , 40 ( 1 ): 446 - 452 . (in Chinese)
Fan Y F , Wang J H . Lateral response of piles subjected a combination of spudcan penetration and pile head loads [J]. Ocean Engineering , 2018 , 156 : 468 - 478 .
Tho K K , Chun F L , Yean K C . Eulerian finite simulation of spudcan-pile interaction [J]. Canada Geotechanics , 2013 , 50 ( 6 ): 595 - 608 .
Wang J H , Fan Y F , Ma J P . Numerical simulation of effects of the spudcan penetration on pile groups of jacket platforms [C]// Proceedings of the 27th International Ocean and Polar Engineering Conference , Sanfransisco, USA , 2017 .
常锦才 , 赵 龙 , 杨倩丽 . 正交多项式的数据拟合方法 [J]. 河北理工大学学报(自然科学版) , 2011 , 33 ( 4 ): 79 - 84 .
Chang J C , Zhao L , Yang Q L . Data fitting method based on orthogonal polynomials [J]. Journal of Hebei Polytechnic University (Natural Science Edition) , 2011 , 33 ( 4 ): 79 - 84 . (in Chinese)
Wang J H , Fan Y F , Dai X R , et al . Effects of eulerian domain size in CEL model on calculated results of spudcan-pile interaction [C]// Proceedings of the 26th International Ocean and Polar Engineering Conference , Rhodes Greece , 2016 .
王建华 , 兰 斐 . 钻井船插桩对邻近桩影响的耦合欧拉-拉格朗日有限元方法研究 [J]. 岩土力学 , 2016 , 37 ( 4 ): 1 127 - 1 136 .
Wang J H , Lan F . A coupled Eulerian-Lagrange FEM for analyzing the effects of spudcan penetration on an adjacent pile [J]. Rock and Soil Mechanics , 2016 , 37 ( 4 ): 1 127 - 1 136 . (in Chinese)
戴笑如 , 王建华 , 范逸飞 . 钻井船插桩CEL数值模拟中的若干问题 [J]. 岩土力学 , 2018 , 39 ( 6 ): 1 001 - 1 009 .
Dai X R , Wang J H , Fan Y F . Several issues of numerical simulation of the spudcan penetration based on CEL method [J]. Rock and Soil Mechanics . 2018 , 39 ( 6 ): 1 001 - 1 009 . (in Chinese)
Zhao J , Jang B S , Duan M L , et al . Simplified numerical prediction of the resistance profile of spudcan foundation sediments with interbeded mediun loose sand layer [J]. Applied Ocean Research , 2016 , 55 : 89 - 101 .
SNAME . Guidelines for site specific assessment of mobile jack-up units [S]. New Jersey : Society of Naval Architects and Marine Engineers , 2002 .
Matlock H . Correlation for design of laterally loaded piles in soft clay [C]// Proceedings of 2nd Offshore Technology Conference , Houston, USA , 1970 : 577 ⁃ 594 .
Hibbitt D , Karlsson B , Sorensen P , et al . ABAQUS 6 . 13 user subroutines reference guide [M]. USA : HKS Co , 2013 .
0
浏览量
0
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
苏公网安备32010202012147号
