地铁隧道断面测量及质量检查方法

The Subway Tunnel Cross-section Measurement and Examination Method

地铁隧道断面测量是地铁施工建设中的重要环节,是线路调线调坡的依据,其测量成果质量必须得到保证。本文首先分析了地铁隧道断面测量工作中的难点,并结合测量技术要求,详细介绍了地铁隧道断面测量流程及采取的"高程放样法";开发的断面测量数据提取软件,实现了测量数据的自动提取及断面Excel成果自动生成;最后重点介绍了断面Excel成果的质量检查方法。

The subway tunnel cross-section measurement is one of the most important sections in the subway construction. Furthermore,it is the basis of line alignment and slope adjustment. Therefore,the quality of the measured results must be guaranteed. In this paper,the difficulties of subway tunnel cross-section measurement are analyzed firstly. Secondly,the elevation lofting method which is used in the subway tunnel cross-section measurement is described combining with the technical requirements of the survey. Additionally,the developed software in this study which realizes the automatic extraction of survey data and generation of cross-section Excel results is introduced in this paper. Eventually,the quality control methods of the cross-section Excel results are presented emphatically.