摘要
沪蓉西高速公路铁罗坪斜拉桥190m主塔为目前国内山区斜拉桥中最高的主塔,位于V字形山谷中,昼夜温差大,主塔施工受气候及环境影响大,施工控制测量是塔柱施工质量控制的关键之一。为了确保能够顺利地按照设计要求完成190m高主塔的施工,施工中通过研究国内其它高墩施工的测量技术,结合现场具体情况,总结出一套满足山区斜拉桥高墩测量的控制技术,特别深入研究探讨了对塔柱索导管采用GPS差分定位技术,供同类型桥梁施工借鉴。
The 190m high pylon of the cable-stayed bridge is the highest pylon located in the mountainous area in China,which is the main pylon of the Luo Ping cable-stayed bridge of the Shanghai-Chengdu Expressway.The site in the V-shape valley has a large temperature difference between day and night,which affect on the main pylon construction.he construction control survey is one of the key ttechnologiesfor the tower construction quality.ensure the construction for this high pylon,referred to the domestic research on the high pylon construction measurement technology,considered the specific situation,this paper summed up the measurement technology for cable-stayed bridge with high pylons in mothe mountainous rea,especially for the GPS differential positioning technology for cable theter.It can be a reference for the same type of bridge construction.
出处
《上海公路》
2011年第3期43-45,61,共4页
Shanghai Highways
关键词
测量控制
立体坐标
GPS差分定位技术
全自动激光垂准仪
Measuring control
Three-dimensional coordinates
GPS differential positioning technology
Automatic laser collimator
