安徽地质2026，Vol.36Issue(3)：242-245,4.
装配式钢管内支撑体系在深大基坑工程中的应用
Application of Prefabricated Steel Pipe Internal Support System in a Deep Foundation Pit
连茹青 1季郑杰1
作者信息
- 1. 安徽省地质矿产勘查局327地质队,安徽 合肥 230011||安徽工程勘察院有限公司,安徽 合肥 230011
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摘要
Abstract
This paper investigates the application of a prefabricated steel pipe internal support system in a deep foundation pit project,based on the optimization of the support structure for a comprehensive R&D building in Hefei,China.The structural response and overall stability of the support system were analyzed using Midas XD and Midas GTS-NX software.The rationality and applicability of this combined support system were verified by field monitoring data.The result shows that the deep horizontal displacement curve of the pile shaft presents a bimodal distribution along the depth,characterized by small values at the top,large values in the middle,and convergent values at the bottom.The maximum displacement occurs below the second level of support,at approximately 5/6 of the foundation pit depth.Standardized flange bolt connections enable rapid and precise assembly.Compared with traditional cast-in-place concrete supports,the prefabricated system shortens the construction period by more than 20%and reduces the project cost by 30.6%.This successful case provides a valuable reference for similar projects.关键词
装配式钢管组合/内支撑/深基坑工程/变形Key words
Prefabricated steel pipe assembly/Internal support/Deep foundation pit/Deformation monitoring分类
天文与地球科学引用本文复制引用
连茹青,季郑杰..装配式钢管内支撑体系在深大基坑工程中的应用[J].安徽地质,2026,36(3):242-245,4.
