| 全站仪测量地铁盾构隧道建筑限界及椭圆度方法研究 |
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| 引用本文： | 谭磊,刘继尧,尹鹏涛,魏英华.全站仪测量地铁盾构隧道建筑限界及椭圆度方法研究[J].城市轨道交通研究,2017(12):87-89. |
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| 作者姓名： | 谭磊 刘继尧 尹鹏涛 魏英华 |
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| 作者单位： | 北京市市政工程研究院,100037,北京;北京市建设工程质量第三检测所有限责任公司,100037,北京 |
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| 摘 要： | 详细介绍了使用全站仪检测地铁盾构隧道建筑限界及椭圆度的方法,并通过应用实例验证了方法的可靠性和准确性。通过全站仪对盾构隧道断面进行快速的测量,依靠此方法加以后期处理即可获得准确的建筑限界和椭圆度信息,避免了对隧道断面仪等专业设备的依赖,可以借助常用的全站仪实现同样的功能。在数据处理中利用两倍方差作为阈值进行了异常点的剔除,在拟合计算过程中采用多次迭代计算,确保了计算结果的可靠性。
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| 关 键 词： | 全站仪测量 地铁盾构隧道 建筑限界 椭圆度 |
Construction Clearance and Ovality of the Total Station Measured Shield Tunnel |
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| Abstract: | The shield tunnel construction clearance and ovality measured by total station device are introduced in detail,the reliability and correctness of this method is proved by practical application cases.The total station device could measure the cross section of shield tunnel quickly,and the processed data could reflect correct information on the construction clearance and ovality,thus the professional instruments like tunnel profiler could be replaced.In data processing,two times variance is used as the threshold to exclude outliers for the accuracy and reliability of this method. |
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| Keywords: | total station measure metro shield tunnel construction clearance ovality |
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