静压桩压入过程的数值模拟

静压桩压入过程的数值模拟 English Version

基金项目: 国家自然科学基金项目( 50978086)

详细信息

1. Department of Geotechnical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; 2. School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450001, China

摘要: 在静压桩的有限元数值模拟技术中,会涉及到大变形、接触非线性等典型力学问题,这些问题是制约数值模拟成功与否的关键。论文采取桩顶施加位移边界条件的方法模拟连续稳步的静压桩贯入过程,研究了有限元计算的网格重新剖分和数据传递,通过模拟砂土地基中预制砼桩的贯入过程,表明任意拉格朗日–欧拉有限元技术和接触力学技术可以较好地解决岩土工程中的大变形和接触问题。
- 大变形 /
- 静压桩 /
- 网格移动 /
- 任意拉格朗日–欧拉描述
Abstract: Deep penetration in displacement piles involves large deformation, nonlinear contact and other mechanical difficult issues. They are key technical problems in numerical modelling. An arbitrary Lagrangian–Eulerian method is used to overcome these problems. The penetration is simulated by the given continual displacement boundary at the top of jacked piles. The grid remesh algorithm and data transmission are studied. The penetration of premoulded piles in sand is analysed, and it is proposed that the arbitrary Lagrangian–Eulerian method is an effctive way to solve large deformation in penetration problem.
- large deformation /
- jacked pile /
- mesh moving /
- arbitrary Lagrangian-Eulerian description

[1]	张明义 . 静力压入桩的研究与应用 [M]. 北京：中国建筑工业出版社 , 2004. (ZHANG Min-yi. Study and application of jack-in pile[M]. Beijing: China Architecture and Building Press, 2004. (in Chinese))
[2]	Van den Berg P. Analysis of soil penetration[D]. Technische Universiteit Delft, 1994.
[3]	SHENG Dai-chao, NAZEM Majidreza, CARTER John P. Some computational aspects for solving deep penetration problems in geomechanics[J]. Comput Mech, 2009, 44 : 549 – 561.
[4]	Ted Belytschko. 连续体和结构的非线性有限元 [M]. 庄茁 , 译 . 北京 : 清华大学出版社 , 2002. (Ted Belytschko. Nonlinear finite elements for continua and structures[M]. ZHUANG Zhuo, tran. Beijing: Tsinghua University Press, 2002. (in Chinese))
[5]	SHENG Dai-chao. Frictional contact for pile installation[C]// IUTAM Symposium on Computational Contact Mechanics. WRIGGERS Peter, NACKENHORST Udo, eds: 239 – 255.
[6]	费康 , 张建伟 . Abaqus 在岩土工程中的应用 [M]. 北京：中国水利水电出版社 , 2010. (FEI Kang, ZHANG Jian-wei. Application of Abaqus in geotechnical engineering[M]. Beijing: China WaterPower Press, 2010. (in Chinese))

1.	梁旭之，郑世伦，刘斌，王云进，肖平. 矿区道路排水设施设计研究. 能源与环保. 2022(06): 279-284 . 百度学术
2.	唐辉明. 重大滑坡预测预报研究进展与展望. 地质科技通报. 2022(06): 1-13 . 百度学术
3.	张伏光，聂卓琛，陈孟飞，冯怀平. 不排水循环荷载条件下胶结砂土宏微观力学性质离散元模拟研究. 岩土工程学报. 2021(03): 456-464 . 本站查看
4.	李涛，高颖，张嘉睿，李殿鑫，陈伟，张鹏，李博，梅奥然. 陕北保水采煤背景下MICP再造隔水土层的试验研究. 煤炭学报. 2021(09): 2984-2994 . 百度学术
5.	田威，李腾，贾能，张旭东，贺礼. 固化剂在黄土路基工程中的研究进展. 公路. 2021(11): 45-52 . 百度学术
6.	戴轩，霍海峰，程雪松，郭旺，冯兴. 高水压作用下水砂耦合流失的DEM-CFD分析. 工业建筑. 2020(11): 82-90 . 百度学术