新加坡明挖隧道监控量测及自动化数据分析平台的应用

Application of Monitoring and Measurement and Automatic Data Analysis Platform for Open-cut Tunnels in Singapore

监控量测在明挖隧道基坑开挖施工过程中起到保证施工安全和确保工程质量的重要作用。本文以新加坡樟宜机场第三跑道明挖隧道为例,对围护结构横向位移、地表沉降、地下水位、地下水压力、钢支撑应变及钢支撑轴力等监测项目进行介绍,并利用自动化数据分析平台实时预警,预防危险事故的发生。进一步说明监控量测在明挖隧道施工中的重要作用,为国内基坑施工监控量测技术信息化的发展提供指导思路。

Monitoring and measurement plays an important role in ensuring construction safety and engineering quality in the process of excavation of open-cut tunnel foundation pits.Taking the cut-and-cover tunnel of the third runway of Singapore Changi Airport as an example,this paper introduces the monitoring items such as lateral displacement of the envelope structure,surface subsidence,groundwater level,groundwater pressure,steel support strain and steel support axial force,and uses automated data analysis.The platform provides real-time early warning to prevent the occurrence of dangerous accidents.This paper further explains the important role of monitoring and measurement in open-cut tunnel construction,and provides guidance for the development of domestic foundation pit construction monitoring and measurement technology informatization.