多种自升式海洋平台桩靴上拔过程仿真分析
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摘要
本文以自升式海洋平台桩靴为主要研究对象,运用Ansys Workbench中的Design Modeler建立桩靴与土的模型,通过LS-DYNA来模拟桩靴上拔过程,并计算了3种桩靴形式的拔桩力和研究了3种桩靴的上拔过程土体的变形,并将桩靴上拔阻力的理论计算值与数值模拟计算的结果进行比较分析。本文对未来海洋平台的发展有一定的工程意义。
In this paper, using Ansys Workbench Design Modeler to establish pile shoe and soil models as main research object. Then simulating the pile shoe pulling process by LS-DYNA. And calculate three kinds of Pile-pulling force and the deformation of soils during the three pile-jacking process. Then compare the theoretical calculation value of pile-up resistance with the result of numerical simulation and analyze. This article has a certain engineering significance for the development of offshore platforms in the future.
In this paper, using Ansys Workbench Design Modeler to establish pile shoe and soil models as main research object. Then simulating the pile shoe pulling process by LS-DYNA. And calculate three kinds of Pile-pulling force and the deformation of soils during the three pile-jacking process. Then compare the theoretical calculation value of pile-up resistance with the result of numerical simulation and analyze. This article has a certain engineering significance for the development of offshore platforms in the future.
引文
[1]李润培,王志农.海洋平台强度分析[M].上海:上海交通大学出版社,1992.
[2]孙雅楠.自升式海洋平台桩靴强度分析[D].大连:大连理工大学,2013.
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[4]唐文献,秦文龙,张建等.自升式平台桩靴结构优化设计[J].中国造船,2013(3):78-84.
[5]陈佳欣.自升式平台2种典型桩靴结构形式对比[J].船海工程,2016,45(5):146-150.
[6]高畅,曲健冰,李红涛.三桩腿自升式平台拔桩作业有限元计算方法研究[J].中国海洋平台,2016,31(2):75-81.
[7]KELLEZI L,STROMANN H.FEM analysis of jack-up Spudcan penetration for multi-layered critical soil conditions[C]//Dundee,Scotland:the BGA(British Geotechnical Association)International Conference on Foundations(ICOF),2003:411-420.
[8]KELLEZI L,HOFSTEDE H,HANSEN P B.Jack-up footing penetration and fixity analyses[J].Proc.ISFOG,2005:559-565.
[9]KELLEZI L,DENVER H,KUDSK G,et al.FE skirted footings analyses for combined loading and layered soil profile[C]//Madrid:The 14th European conf.On Soil Mech.and Geotechnical Eng,2007(2):35-38.
[10]KELLEZI L,KUDSK G,HOFSTEDE H.Skirted footings conditions[C]//Dundee,Scotland,IHS BRE Press:the BGA(British Geotechnical Association)International Conference on Foundations,2008(3):24-27.
[11]KELLEZI L,KUDSK G,HOFSTEDE H.Jack-up rig foundation design applying 3d fe structure-soil-interaction modeling[C]//Dundee,Scotland,IHS BRE Press:the BGA(British Geotechnical Association)International Conference on Foundations,2008(3):24-27.
[12]KOHAN O,BIENEN B,GAUDIN C,et al.The effect of water jetting on Spudcan extraction from deep embedment in soft clay[J].Ocean Engineering,2015,97:90-99.
[13]PURWANA O A,LEUNG C F,CHOW Y K,et al.Influence of base suction on extraction of jack-up Spudcans[J].Geotechnique,2005,55(10):741-754.
[2]孙雅楠.自升式海洋平台桩靴强度分析[D].大连:大连理工大学,2013.
[3]任宪刚,白勇.精确模拟土壤反力对桩靴性能影响的研究[J].船舶力学,2012,16(1):146-155.
[4]唐文献,秦文龙,张建等.自升式平台桩靴结构优化设计[J].中国造船,2013(3):78-84.
[5]陈佳欣.自升式平台2种典型桩靴结构形式对比[J].船海工程,2016,45(5):146-150.
[6]高畅,曲健冰,李红涛.三桩腿自升式平台拔桩作业有限元计算方法研究[J].中国海洋平台,2016,31(2):75-81.
[7]KELLEZI L,STROMANN H.FEM analysis of jack-up Spudcan penetration for multi-layered critical soil conditions[C]//Dundee,Scotland:the BGA(British Geotechnical Association)International Conference on Foundations(ICOF),2003:411-420.
[8]KELLEZI L,HOFSTEDE H,HANSEN P B.Jack-up footing penetration and fixity analyses[J].Proc.ISFOG,2005:559-565.
[9]KELLEZI L,DENVER H,KUDSK G,et al.FE skirted footings analyses for combined loading and layered soil profile[C]//Madrid:The 14th European conf.On Soil Mech.and Geotechnical Eng,2007(2):35-38.
[10]KELLEZI L,KUDSK G,HOFSTEDE H.Skirted footings conditions[C]//Dundee,Scotland,IHS BRE Press:the BGA(British Geotechnical Association)International Conference on Foundations,2008(3):24-27.
[11]KELLEZI L,KUDSK G,HOFSTEDE H.Jack-up rig foundation design applying 3d fe structure-soil-interaction modeling[C]//Dundee,Scotland,IHS BRE Press:the BGA(British Geotechnical Association)International Conference on Foundations,2008(3):24-27.
[12]KOHAN O,BIENEN B,GAUDIN C,et al.The effect of water jetting on Spudcan extraction from deep embedment in soft clay[J].Ocean Engineering,2015,97:90-99.
[13]PURWANA O A,LEUNG C F,CHOW Y K,et al.Influence of base suction on extraction of jack-up Spudcans[J].Geotechnique,2005,55(10):741-754.