摘要
地连墙的失稳和破坏会造成重大的经济损失和人员伤亡,因此对地连墙的变形监测尤为重要。然而,传统监测技术难以高效准确地获取地连墙分布式位移数据。针对目前地连墙深部位移监测技术的不足,本文提出了一种基于弱光栅技术的基坑围护结构变形监测方法,并将其应用到深圳某基坑工程中,对开挖过程中地连墙的变形情况实时监测,结果表明:本文提出的监测技术可实时获取地连墙的应变、弯矩、位移等变形信息,精准地确定地连墙的状态,为保障基坑工程安全顺利的施工提供一种可靠的技术手段。
The instability and damage of diaphragm wall will cause great economic losses and casualties,so the deformation monitoring of diaphragm wall is particularly important.However,the traditional monitoring technology is difficult to obtain the distributed displacement data of diaphragm wall efficiently and accurately.Aiming at the deficiency of deep displacement monitoring technology of diaphragm wall,this paper proposes a deformation monitoring method of foundation pit retaining structure based on weak FBG technology.Furthermore,the technology is applied to a Shenzhen foundation pit project to monitor the deformation of diaphragm wall in real time.The results show that:the monitoring technology proposed in this paper can obtain the strain,bending moment,displacement and other deformation information of diaphragm wall in real time,accurately determine the state of diaphragm wall,and provide a reliable technical means for ensuring the safe and smooth construction of foundation pit engineering.
作者
廖令军
莫成
岳琪迪
杨飞
刘昭
陈明银
贾立翔
LIAO Lingjun;MO Cheng;YUE Qidi;YANG Fei;LIU Zhao;CHEN Mingyin;JIA Lixiang(The Fourth Company of China Railway No.5 Engineering Group Co.,Ltd.,Shaoguan 512031,China;Suzhou NanZee Sensing Technology Ltd.,Suzhou 215123,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期1963-1969,共7页
Building Structure
关键词
位移监测
弱光栅
地下连续墙
挠度计算
自动化监测
displacement monitoring
weak FBG
diaphragm wall
deflection calculation
automatic monitoring
作者简介
廖令军,学士,高级工程师,Email:805971491@qq.com。
