一种新的城市电缆隧道变形监测方法研究  

Research on a New Deformation Monitoring Method for the Urban Cable Tunnel

作　　者：叶珉吕 周旺辉[2] 

机构地区：[1]佛山市城市规划勘测设计研究院,广东佛山528000 [2]苏州工业园区测绘地理信息有限公司,江苏苏州215027

出　　处：《城市勘测》2016年第4期123-125,共3页Urban Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(41174010)

摘　　要：传统的城市电缆隧道变形监测方法易受到监测点数量、观测时间、劳动强度、观测条件等多方面因素的制约,且属于单点式监测模式,无法对隧道整体变形趋势进行有效监测。针对上述问题,根据矩形城市电缆隧道的特点,结合三维激光扫描技术,提出一种新的基于正交整体最小二乘平面拟合的城市电缆隧道变形监测方法,通过计算拟合平面之间夹角及距离的变化,进行隧道净空水平位移及拱顶下沉趋势的分析。实例结果表明,该方法具有较高的可行性。The traditional deformation monitoring method for the urban cable tunnel is restricted by the number ofmonitoring points,observation time, labor intensity,observing conditions and other factors,and is the single-point monitoring mode,unable to fully analyze the deformation of the tunnel. In response to these problems,according to the characteristics of the rectangular urban cable tunnel, combined with 3 -D laser scanning technology, the thesis proposes a newdeformation monitoring method based on the orthogonal total least squares fitting for the urban cable tunnel,calculatingthe changes in the angle and the distance between the plane to analyze the tunnel, s horizontal displacement and subsidence of vault. Verified by the examples, it is indicating that the new s deformation monitoring method is more feasible.

关 键 词：三维激光扫描 城市电缆隧道 正交整体最小二乘 变形监测 

分 类 号：P258[天文地球—测绘科学与技术]