昆山市中环快速化改造工程施工控制网的建立

Establishment of Construction Control Network for Kunshan City Middle Ring Expressway Reconstruction Project

昆山市中环快速化改造工程通过在既有道路上进行快速化改造成高架桥,全长约44.4 km,呈环形布置,工程体量大、线路长,精度要求高。通过建立首级施工控制网的工程实例,探讨特大型高架桥梁施工控制网的建立方法,为提高控制网精度采用的对策,以及常规观测数据及GPS数据的联合处理。主要介绍了施工控制网技术方案的设计、实施及数据处理过程。通过详细的方案设计及合理的实施手段,所建施工控制网达到了项目的精度要求。

The Kunshan city middle ring expressway reconstruction project is for reconstruction of the existing road into a ring viaduct with total length of about 44.4 km and it has large workloads, long routes and high accuracy requirement. We established examples of head construction control network, discussed the methods for establishing the super large viaduct construction control network, measures for improving the precision of control network, and the joint processing of regular observation data and the GPS data. This paper mainly introduces the design, implementation and data processing of the construction control network technology scheme. By way of detailed scheme design and reasonable implementation method, the construction control network meets the precision requirement of the project.