| 地下轨道竣工导线三维坐标法精度分析及测量方法研究 |
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| 引用本文： | 刘晓斌,江建辉,王斌.地下轨道竣工导线三维坐标法精度分析及测量方法研究[J].测绘与空间地理信息,2017(8). |
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| 作者姓名： | 刘晓斌 江建辉 王斌 |
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| 作者单位： | 1. 广东恒源空间地理信息技术有限公司,广东 惠州,516211;2. 广东省国土资源测绘院,广东 广州,510550 |
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| 摘 要： | 城市地下轨道交通竣工测量中,对轨道平顺度要求较高,常规地采用平面导线加测水准法或导线陀螺仪加测定向边法获取水平和垂直方向坐标值,具有操作复杂、进度慢、效率低等特点。本文结合深圳市地下轨道交通竣工测量工程实际,考虑地下轨道狭长的作业环境难免会产生导线网超边的现象,因此采用导线三维坐标法同步采集平面点坐标,利用三角往返观测来采集相应点上高程信息,同时,研究提高测角等级和增加角度测回数控制点位精度。试验表明,该方法可以达到规范指标要求。
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| 关 键 词： | 轨道交通 导线三维坐标 调焦镜运行误差 横向误差 纵向误差 |
Accuracy Analysis and Measurement Method of 3D Coordinate Method for Finished Conductor of Underground Track |
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| LIU Xiao-bin,JIANG Jian-hui,WANG Bin.Accuracy Analysis and Measurement Method of 3D Coordinate Method for Finished Conductor of Underground Track[J].Geomatics & Spatial Information Technology,2017(8). |
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| Authors: | LIU Xiao-bin JIANG Jian-hui WANG Bin |
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| Abstract: | In the measurement of urban underground rail transit, the smoothness of the track is higher, and the horizontal and vertical coordinate values are obtained by using the plane wire plus the leveling method or the wire gyroscope plus the measured side method.It has the advantages of complicated operation, slow progress and low efficiency and other characteristics.Based on the actual construction of underground rail transit in Shenzhen, this paper uses the three-dimensional coordinate method of wire to collect the coordinates of the plane point and collect the elevation information at the corresponding point by triangulation.At the same time, considering the underground track long and narrow operating environment, it is difficult to avoid the phenomenon of super-edge wire, to improve the angle of measurement and increase the angle of the number of control point''s accuracy.Experiments show that the method can meet the requirements of the specification. |
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| Keywords: | rail transit wire three-dimensional coordinates focusing lens operating error lateral error longitudinal error |
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