联系测量在地铁工程中的应用研究  

The Application Research of Connection Survey on the Subway Engineering

作　　者：张献伟[1] 刘卫军[1] 杨晨 黄国红 ZHANG Xianwei;LIU Weijun;YANG Chen;HUANG Guohong(Xinjiang Institute of Engineering,Urumqi 830091,China)

机构地区：[1]新疆工程学院,新疆乌鲁木齐830091

出　　处：《测绘与空间地理信息》2021年第3期76-78,82,共4页Geomatics & Spatial Information Technology

基　　金：新疆工程学院科研育人项目——矿井联系测量高精度模型应用研究(2019xgy802112)资助。

摘　　要：城市地铁施工通常采用联系测量将平面位置、高程引入地下,常用一井定向与两井定向,本文结合工程实例在一井定向过程中采用连接三角形方法进行平面坐标系的传递,一方面在内业数据处理方中采用闭合导线约束平差的思想及方法进行处理,从而提高定向点点位精度;另一方面利用陀螺全站仪来加测地下导线边方位角的方法来提高井下定向边的定向精度。本文采用提高地下定向点点位精度与定向边的定向精度相结合的方式来确保地下隧道施工质量。Urban subway construction usually uses connection survey to introduce the plane position and elevation into the underground.The commonly used were single well orientation and dual well orientation.In this paper,the method of connecting triangle is used to transfer the plane coordinate system in the single well orientation process.On the one hand,in the indoor data processing,it adopts the idea and method of closed traverse constraint adjustment to improve the orientation spot accuracy.On the other hand,the gyro total station instrument is used to measure the orientation angle of the underground traverse edge to improve the orientation accuracy of the underground orientation edge.The quality of underground tunnel construction is ensured by improving the accuracy of underground orientation spot and accuracy of orientation edge.

关 键 词：联系测量 一井定向 连接三角形 闭合导线 

分 类 号：P25[天文地球—测绘科学与技术] TB22[天文地球—大地测量学与测量工程]