钢支撑伺服系统调节轴力对软土深基坑变形的影响  

Influence of Steel Support Servo System Adjusting Axial Force on Deformation of Soft Soil Deep Foundation Pit

作　　者：张毅 李晓波 施宇靖 ZHANG Yi;LI Xiaobo;SHI Yujing(Zhejiang Xinyingding Technology Co.,Ltd.,Hangzhou,Zhejiang 310004,China)

机构地区：[1]浙江欣盈鼎科技有限公司,浙江杭州310004

出　　处：《自动化应用》2025年第5期225-229,共5页Automation Application

摘　　要：为了解钢支撑伺服系统在典型软弱地层中对基坑变形的控制效果,以南京某地铁车站基坑工程为背景,在临近房屋区域设置伺服系统,实施不同的轴力方案。通过模拟分析实测数据及数值模型,研究其围护结构水平位移、支撑轴力变化、地表房屋沉降变化。结果表明,当伺服系统采用分阶段调整轴力时,地连墙最大水平位移减少了20.7mm,与无伺服系统相比减少了24.9%;地表沉降减少21.81mm,与无伺服系统相比减少了25.2%,基坑变形控制效果显著,初步展示了伺服系统轴力方案在地铁基坑应用的实用性。In order to understand the control effect of steel support servo system on foundation pit deformation in typical weak strata,a servo system was set up in the vicinity of a subway station foundation pit project in Nanjing,and different axial force schemes were implemented.By simulating and analyzing measured data and numerical models,study the horizontal displacement of the enclosure structure,changes in supporting axial force,and changes in surface building settlement.The results show that when the servo system adopts phased adjustment of axial force,the maximum horizontal displacement of the diaphragm wall is reduced by 20.7 mm,which is 24.9%less than that of the no servo system.The surface settlement decreased by 21.81 mm,a decrease of 25.2%compared to no servo system.The deformation control effect of the foundation pit was significant,demonstrating the practicality of the servo system axial force scheme in the application of subway foundation pits.

关 键 词：钢支撑轴力 伺服系统 基坑 变形 轴力 控制 

分 类 号：U473[机械工程—车辆工程]