土体参数对遮帘式板桩码头结构侧向变形的影响
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摘要
文中通过ABAQUS有限元数值软件建立遮帘式板桩码头的三维数值模型,研究不同土体参数对遮帘式板桩码头结构侧向变形的影响。研究结果表明,土体的弹性模量对结构的整体稳定性影响较大,随着弹性模量的减小,前墙和遮帘桩水平位移逐渐增大,减小的愈多,变形愈明显;土体内摩擦角和粘聚力对遮帘式板桩结构物的位移变形影响主要集中在结构物的中上部,对结构物底部的位移变形影响较小,随着内摩擦角和粘聚力的增大,前墙和遮帘桩中上部的水平位移逐渐减小,发生最大变形的位置基本不变。
In this paper, the three-dimensional numerical model of the blind-type sheet pile wharf is established by ABAQUS finite element numerical software, and the influence of different soil parameters on the lateral deformation of the curtain-type sheet pile wharf is studied. The results show that elastic modulus of the soil affects the overall stability of the structure. As the elastic modulus decreases, the horizontal displacement of front wall and covered sheet pile increases gradually, and the more the reduction, the more obvious the deformation. The influence of internal friction angle and cohesion on the displacement is mainly located in the middle and upper part of the structure,and has little effect on the displacement and deformation at the bottom of the structure. With the increase of internal friction angle and cohesion, the horizontal displacement of decreases gradually and the position of maximum deformation is basically unchanged.
In this paper, the three-dimensional numerical model of the blind-type sheet pile wharf is established by ABAQUS finite element numerical software, and the influence of different soil parameters on the lateral deformation of the curtain-type sheet pile wharf is studied. The results show that elastic modulus of the soil affects the overall stability of the structure. As the elastic modulus decreases, the horizontal displacement of front wall and covered sheet pile increases gradually, and the more the reduction, the more obvious the deformation. The influence of internal friction angle and cohesion on the displacement is mainly located in the middle and upper part of the structure,and has little effect on the displacement and deformation at the bottom of the structure. With the increase of internal friction angle and cohesion, the horizontal displacement of decreases gradually and the position of maximum deformation is basically unchanged.
引文
[1]刘文平,郑颖人,蔡正银,等.遮帘式板桩码头结构有限元分析[J].岩土工程学报,2010,32(4):573-577.
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[9]张昊,高玉峰,谭慧明,等.遮帘式板桩码头变形机制有限元分析[J].长江科学院院报,2014,31(7):81-85.
[10]焦志斌,蔡正银,王剑平,等.遮帘式板桩码头原型观测技术研究[J].港工技术,2005,(s1):56-59.
[2]张深,管人地.悬臂式板桩入土深度的ANSYS数值模拟[J].科学技术与工程,2012,12(24):297-300.
[3]李景林,蔡正银,徐光明.遮帘式板桩码头结构离心模型试验研究[J].岩石力学与工程学报, 2007,26(6):1182-1187.
[4]蔡正银,徐光明,曾友金,等.遮帘式板桩码头土压力离心模型试验研究[J].港工技术, 2005(12):51-55.
[5]崔冠辰,蔡正银,李小梅,等.遮帘式板桩码头工作机理初探[J].岩土工程学报,2012,34(4):762-766.
[6]惠炜,吴跃东,赵颖慧.基于土拱效应的遮帘桩合理桩间距分析[J].长江科学院院报,2015,32(12):67-71,86.
[7]李胜利.遮帘式板桩结构码头遮帘桩合理长度确定[J].地下空间与工程学报,2015,11(s2):591-595.
[8]司海宝.新型板桩码头结构与地基相互作用数值分析研究[D].南京:南京水利科学研究院, 2010.
[9]张昊,高玉峰,谭慧明,等.遮帘式板桩码头变形机制有限元分析[J].长江科学院院报,2014,31(7):81-85.
[10]焦志斌,蔡正银,王剑平,等.遮帘式板桩码头原型观测技术研究[J].港工技术,2005,(s1):56-59.