地铁车站内CPⅢ平面控制网网形设计

Design of CPⅢ Plane Control Network Form in Metro Station

将高速铁路精密控制测量体系特别是CPⅢ控制网测量技术引入城市轨道交通建设,改进了传统的地铁控制网和轨道精调作业方法,极大地提高了轨道的平顺性,但在地铁车站内布设CPⅢ控制网极易受到站台遮挡。为了顺利布设轨道控制网、提高地下车站内CPⅢ控制网的相对精度,提出了整体构网的方法。

The micromanipulation survey system of high-speed railway, especially CPIII control network survey technology is introduced into the construction of urban rail transit. It can improve the conventional metro control network and rail accurate adjustment work, and greatly improve the smoothness of rail. But the setup of CPIII control network in the metro station will be easy shielded by the platform. In order to smoothly set up the rail control network and improve the relative precision of CPIII control network in the underground station, the method of integral structure network is proposed.