水利与建筑工程学报2024,Vol.22Issue(1) :126-133,155.DOI:10.3969/j.issn.1672-1144.2024.01.017

复杂条件下深水沉井基础偏位数值模拟分析

Numerical Simulation and Analysis of Foundation Offsetness of Deepwater Sinking Well Under Complex Conditions

石云冈 徐霞飞 田鹏 李婷 钟卫 金宇轩
水利与建筑工程学报2024,Vol.22Issue(1) :126-133,155.DOI:10.3969/j.issn.1672-1144.2024.01.017

复杂条件下深水沉井基础偏位数值模拟分析

Numerical Simulation and Analysis of Foundation Offsetness of Deepwater Sinking Well Under Complex Conditions

石云冈 1徐霞飞 2田鹏 3李婷 1钟卫 1金宇轩1
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作者信息

  • 1. 湖南省交通科学研究院有限公司,湖南长沙 410015
  • 2. 湖南省益常北线高速公路建设开发有限公司,湖南长沙 410007
  • 3. 湖南路桥建设集团有限责任公司,湖南长沙 410007
  • 折叠

摘要

为了深入了解复杂条件下深水沉井基础偏位问题,采用大型岩土仿真分析软件midas GTS对多种工况下深水沉井的下沉受荷过程进行仿真模拟,并通过对比现场监控结果,对沉井偏位情况进行分析并总结沉井偏位的作用规律,分析依托工程沉井发生偏位的原因,计算评估各种纠偏方式的作用效果.结果表明:车辆荷载是引起沉井顺桥向偏位的主要原因之一;沉井整体偏移将随外侧堆土高度的增加而增大,二者呈正相关,但非线性相关;通过堆土回填调整沉井高差能逐步回调偏差达到沉井纠偏的目的.该分析结果可为深水沉井纠偏、防护方式的确定提供依据及理论支撑.

Abstract

This work uses the large-scale geotechnical simulation analysis software midas GTS to simulate the sinking process of deepwater sunken wells under various working conditions.By comparing the on-site monitoring results,the deviation of sunken wells is analyzed.The action laws of the deviation of the open caisson were summarized,the rea-sons for the deviation of the engineering open caisson were analyzed,and the effectiveness of various correction meth-ods was calculated and evaluated.The specific conclusions of the article are as follows.Vehicle load is one of the main reasons for the deviation of the caisson along the bridge direction.The overall displacement of the caisson will increase with the increase of the height of the outer soil pile,and the two are positively correlated,but the relationship is non-linear.By adjusting the height difference of the open caisson through soil backfilling,the deviation can be gradually adjusted to achieve the purpose of correcting the deviation of the open caisson.To provide a basis and theoretical sup-port for the determination of deviation correction and protection methods for deepwater sunken wells.

关键词

深水/沉井基础/智能监控/纠偏/数值模拟

Key words

deep water/sinking well foundation/intelligent monitoring/correction/numerical simulation

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基金项目

湖南省交通科技项目(202215)

出版年

2024
水利与建筑工程学报
西北农林科技大学

水利与建筑工程学报

影响因子:0.383
ISSN:1672-1144
参考文献量12
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