港口航道与近海工程2025，Vol.62Issue(2)：74-77,4.DOI:10.16403/j.cnki.ggjs20250216
漫滩区淤泥覆盖层厚度对墩柱的影响分析
Analysis for Impact on Abutments by Thickness of Silt Covering in Floodplain Area
高飞 1赵志强2
作者信息
- 1. 中交三航局第三工程有限公司,江苏 南京 210011
- 2. 南通市交通运输综合行政执法支队,江苏 南通 226001
- 折叠
摘要
Abstract
The constant increase of the record high water level of the Yangtze River leads to much thicker silt stratum under water,which reduces the effective height of abutments to a great extent.Based on the ring bridge approach of a steel box girder bridge at the Nanjing Bridge Park section along the shoreline of the Yangtze River,Midas Civil was firstly used to carry out the stress analysis,which produced the stress and deformation results of the whole bridge approach under the most unfavorable load conditions.And then Abaqus software was used for the local stress analysis of abutment girder consolidation points.In addition,the abutment height was modified to simulate the impact of the thickness of silt covering on the effective height of abutments in floodplain area.The results showed that the fissures easily occur at the consolidation points of abutment girders or under the hoop plates on top of the abutments.When the silt covering became thicker,the effective height of abutments decreased,and the cracking risk increases greatly.关键词
局部分析/墩梁固结/淤泥覆盖层/有限元分析Key words
local analysis/pier&beam consolidation/silt covering/finite element analysis分类
交通工程引用本文复制引用
高飞,赵志强..漫滩区淤泥覆盖层厚度对墩柱的影响分析[J].港口航道与近海工程,2025,62(2):74-77,4.
