[1]石峻峰,陈 克,赵月悦,等. 超大沉井基础下沉施工应力与变位分析[J].湖北工业大学学报,2022,(1):96-99.
　SHI Junfeng,CHEN Ke,ZHAO Yueyue,et al. Analysis of Stress and Displacement in Sinking Construction of Super Large Open Caisson Foundation[J].,2022,(1):96-99.
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 超大沉井基础下沉施工应力与变位分析()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2022年第1期
页码:
96-99
栏目:
湖北工业大学学报
出版日期:
2022-02-28

文章信息/Info

Title:
 Analysis of Stress and Displacement in Sinking Construction of Super Large Open Caisson Foundation
文章编号:
1003-4684(2022)01-0096-04
作者:
 石峻峰1;  陈 克1;  赵月悦2;  陶 俊3
1 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068； 
2 中铁第四勘察设计院集团有限公司， 湖北 武汉 430063；
3 中铁大桥局集团第六工程有限公司， 湖北 武汉 430050
Author(s):
SHI Junfeng1;  CHEN Ke1;  ZHAO Yueyue2;  TAO Jun3
1 School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China；
2 China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063,China;
3 China Railway Major Bridge Engin. Group No. 6 Engin. Co., Ltd，Wuhan 430050，China
关键词:
 ; 沉井基础;  变位分析;  施工阶段
Keywords:
 ; caisson foundation;  displacement analysis;  construction stage
分类号:
U443
文献标志码:
A
摘要:
 基于常泰长江大桥主墩沉井基础下沉施工，运用有限元分析软件对沉井施工的首次下沉进行了数值模拟。对沉井下沉结束后的应力以及变位进行了分析，结果表明：沉井在下沉完毕后，沉井刃脚截面全面受压，最大压应力出现在刃脚与刃脚相连的隔墙位置上，沉井最外圈井壁应力在隔墙处会发生突变，但应力值整体上从长轴方向圆弧中点到短轴方向直线中点逐渐下降。同时，沉井下沉结束后，沉井位移量由上到下逐渐减小，在隔墙连接处位移量产生突变，而土体的沉降量在隔墙处大于井孔位置，在刃脚部位土体沉降最大。
Abstract:
Based on the sinking construction of caisson foundation of main pier of Changtai Changjiang Bridge, the first sinking of caisson is simulated by finite element analysis software. The stress and displacement of caisson after sinking are analyzed. The results showed that: (1) After the completion of sinking of the caisson, the cross section of the caisson blade foot is under overall compression, and the maximum compressive stress appears on the partition where the blade foot is connected to the blade foot. The shaft wall stress of the outermost ring of the caisson will suddenly change at the partition wall, but the stress value gradually decreases from the circular arc midpoint in the long axis direction to the linear midpoint in the short axis direction on the whole. (2) After the completion of caisson subsidence, the displacement of the caisson gradually decreases from top to bottom, and the displacement of the caisson suddenly changes at the partition connection, while the settlement of the soil at the partition is greater than that at the borehole, and the soil settlement at the edge foot is the largest.

参考文献/References:

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备注/Memo

备注/Memo:
［收稿日期］ 2021-03-14
［第一作者］ 石峻峰(1974-)，男，吉林辽源人， 工学博士，湖北工业大学讲师，研究方向为损伤断裂力学，结构工程，BIM技术
［通信作者］ 陈 克(1995-)，男，湖北咸宁人，湖北工业大学硕士研究生，研究方向为道路与桥梁
更新日期/Last Update: 2022-02-28