城市地铁控制网稳定性分析及应用  

Analyzing stability of city subway control network and its application

作　　者：张广伟[1] 李鹏[1] 宫辉[1] 

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101

出　　处：《测绘科学》2008年第4期98-99,共2页Science of Surveying and Mapping

摘　　要：城市地铁控制网是城市地铁工程的基准,是工程施工质量安全的保障,其稳定与否直接影响到联系测量及贯通误差的计算。本文研究了控制网的稳定性分析方法,结合北京地铁五号线某段控制网,利用两期平面观测数据对控制网进行稳定性分析,保证了隧道的安全贯通。As the datum of city subway engineering, control network ensures the quality and safety of the engineering. The stable or not of the control network play an important part in connective survey and piercing error calculation. The analysis method of network is researched in the paper. Based on the two-period data of Beijing fifth line subway, the stability of network is analyzed, the break- through of the tunnel is ensured.

关 键 词：城市地铁控制网 稳定性分析 平均间隙法 变形椭圆法 

分 类 号：P25[天文地球—测绘科学与技术]