高挡土板桩墙施工期三维整体有限元数值模拟
发布时间：2018-09-09 13:30
【摘要】：针对某引江河二线船闸工程,基于ABAQUS建立了船闸地连墙板桩结构三维有限元整体分析模型,开发了相应的FRIC子程序模拟地连墙和土体的相互作用;分11级连续模拟了船闸施工期5个不同典型阶段的锚碇桩、地连墙的内力、变形以及锚杆的内力变化,并将有关数值模拟结果与现场实测结果进行了对比,二者取得了较好的一致;对锚杆的布置高程和闸室土体的开挖方式进行了优化研究。研究表明,所建立的整体分析模型能够准确地预测施工期不同阶段锚碇桩、地连墙的变形以及锚杆的内力变化情况;闸室土体的开挖过程对地连墙和锚碇桩的变位影响较大;锚杆布置在泥面到闸顶高度的2/3位置时墙体变形和内力最小。
[Abstract]:Based on ABAQUS, a 3D finite element integral analysis model of the wall plate pile structure of the shiplock is established, and the corresponding FRIC subprogram is developed to simulate the interaction between the ground connecting wall and the soil. In this paper, the internal force, deformation and the internal force of anchor rod are continuously simulated by 11 grades of Anchorage piles in five typical stages during the construction period of shiplock, and the results of numerical simulation are compared with the measured results in the field. The layout height of anchor rod and the excavation mode of the sluice chamber soil are studied optimally. The results show that the whole analysis model can accurately predict the deformation of the anchor pile, the deformation of the ground connection wall and the change of the internal force of the anchor rod during the construction period, and the excavation process of the sluice chamber soil has a great influence on the displacement of the ground connecting wall and the Anchorage pile. The deformation and internal force of the wall are minimized when the anchor rod is arranged 2 / 3 of the height from the mud surface to the top of the gate.
【作者单位】： 河海大学工程力学系;江苏省水利建设工程有限公司;江苏省水利勘测设计研究院有限公司;江苏省泰州引江河工程第二期建设局;
【基金】：国家自然科学基金项目(51579084) 江苏省水利科技重点项目资助(2013110)
【分类号】：U641.5
本文编号：2232520
[Abstract]:Based on ABAQUS, a 3D finite element integral analysis model of the wall plate pile structure of the shiplock is established, and the corresponding FRIC subprogram is developed to simulate the interaction between the ground connecting wall and the soil. In this paper, the internal force, deformation and the internal force of anchor rod are continuously simulated by 11 grades of Anchorage piles in five typical stages during the construction period of shiplock, and the results of numerical simulation are compared with the measured results in the field. The layout height of anchor rod and the excavation mode of the sluice chamber soil are studied optimally. The results show that the whole analysis model can accurately predict the deformation of the anchor pile, the deformation of the ground connection wall and the change of the internal force of the anchor rod during the construction period, and the excavation process of the sluice chamber soil has a great influence on the displacement of the ground connecting wall and the Anchorage pile. The deformation and internal force of the wall are minimized when the anchor rod is arranged 2 / 3 of the height from the mud surface to the top of the gate.
【作者单位】： 河海大学工程力学系;江苏省水利建设工程有限公司;江苏省水利勘测设计研究院有限公司;江苏省泰州引江河工程第二期建设局;
【基金】：国家自然科学基金项目(51579084) 江苏省水利科技重点项目资助(2013110)
【分类号】：U641.5
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