基于移动三维激光扫描的盾构隧道监测技术

我国城市轨道交通飞速发展,主要采用盾构法施工建设。盾构隧道结构安全监测是城市轨道交通运营监测的主要工作之一。传统盾构隧道监测主要采用全站仪、水准仪、收敛仪等测量设备。传统监测手段存在效率低、周期长、成本高、成果类型单一等缺点。针对传统监测不足,文章引入移动三维激光扫描的新型盾构隧道监测技术,通过移动三维激光扫描技术快速获取隧道结构信息,从而实现隧道结构健康状态的快速、全面监测。工程实例表明,该技术具有监测速度快,成果类型丰富等优点,较传统方法更加符合轨道交通监测行业需求。

Shield tunnel monitoring technology based on mobile 3D laser scanning

The rapid development of China's urban rail transit mainly goes with shield construction.Shield tunnel structure safety monitoring is one of the main tasks of urban rail transit operation monitoring.Traditional shield tunnel monitoring mainly uses total station,level,convergence meter and other measuring equipment.Traditional monitoring methods have the disadvantages of low efficiency,long cycle,high cost,and single type of results.Aiming at the shortage of traditional monitoring,this paper introduces a new type of shielded tunnel monitoring technology with mobile three-dimensional laser scanning.The fast-moving three-dimensional laser scanning technology can quickly obtain the tunnel structure information,so as to achieve rapid and comprehensive monitoring of the health status of the tunnel structure.Engineering examples show that this technology has the advantages of fast monitoring speed and rich results types,which is more in line with the needs of the rail transit monitoring industry than traditional methods.