V形山谷高墩大跨斜拉桥190m主塔测量控制技术研究  

Measuring control technology for 190m high pylon of a cable-stayed bridge in V-shape valley

作　　者：卜东平[1] 李玉宏[1] 

机构地区：[1]中铁一局集团第二工程有限公司,唐山063004

出　　处：《上海公路》2011年第3期43-45,61,共4页Shanghai Highways

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.

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 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]