桥梁工程首级控制网测量关键技术探讨

首级控制网测量是桥梁工程顺利对接的关键技术之一，为保证桥梁工程施工质量,必须建立高精度控制网。根椐国家测量规范要求,结合某桥梁工程实例，探讨了首级控制网布设过程中的布网要求,以及平面控制测量和高程控制测量的关键技术及方法。经工程检验,该控制网布测方法能有效满足工程精度要求，对类似工程具有较强的操作性和借鉴意义。

Discussion on key survey technology of first order control network for bridge works

The first order control network survey is one of key technologies in smooth connecting of bridges. In order to ensure construction quality of bridge works, the high accuracy control network must be established. In the combination with a practical bridge case, the arrangement requirement of the first order control network as well as the key technologies and methods of horizontal control survey and vertical control survey are discussed. The result check proves that the arrangement method of the control network can effectively meet the requirement of construction.