某桥梁深水基础施工中钢护筒变形原因分析及对策  

Analysis and Countermeasure for Deformation of Steel Casing in Deep Water Foundation Construction of a Bridge Project

作　　者：姚帅彪 商朋朋 李浩师 赵磊[1] YAO Shuaibiao;SHANG Pengpeng;LI Haoshi;ZHAO Lei(School of Highway,Chang an University,Xi an 710064,China)

机构地区：[1]长安大学公路学院,陕西西安710064

出　　处：《沈阳大学学报（自然科学版）》2019年第1期66-72,共7页Journal of Shenyang University：Natural Science

摘　　要：针对在实际施工过程中出现的水中钢护筒的变形问题,运用有限元软件对某渡改桥工程深水中钢护筒部分的变形进行模拟分析发现,焊缝撕裂作用下有限元模拟的变形与实际施工情况的变形结果一致.考虑到施工过程中有一段时间的停工,认为桩基塌孔是其变形的主要原因.Aiming at the deformation of the steel casing in the water in the actual construction process,the finite element software is used to simulate the deformation of the steel casing in the deep water of a crossing bridge project.The deformation of the lower finite element simulation is consistent with the deformation result of the actual construction.Considering that there is a period of work stoppage during the construction process,it is considered that the pile foundation collapse is the main reason for its deformation.

关 键 词：桥梁工程 钢护筒 深水施工 钻孔灌注桩 水中部分 变形分析 

分 类 号：U445.471[建筑科学—桥梁与隧道工程]