To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
The construction survey and control are the critical steps in assuring construction quality of a suspension bridge superstructure.
施工测量控制是悬索桥上部结构施工中保证施工质量的关键环节。
Therefore, studies one kind to suit in the large-scale bridge building construction high accuracy control surveys and constructs the survey method to be extremely essential.
为此，研究一种适合于大型桥梁工程建设的高精度控制测量及施工测量的方法非常必要。
With reference to the gravity survey, this paper describes the schemes of control network layout used with global positioning system (GPS) technique for Donghai Bridge project over sea.
结合重力测量，介绍利用GPS技术进行东海大桥跨海工程控制网的布设技术方案。
GPS has been playing a very important role which can not be taken by the traditional survey techniques in long distance sea-spanning bridge construction.
在远距离跨海桥梁工程施工中，GPS定位技术正发挥着常规地面测量技术无法承担的重要作用。
In bridge construction, the major task of survey lies in the accurate setting out of abutment location, pier location, and the components of the crossing structure.
在桥梁建设中，测量工作的主要任务是精确地放样桥墩桥台的位置和跨越结构的各个部分。
The paper put in writer's suggestions about field work in survey and design of bridge site through the practice of it.
本文通过作者对桥位测设的实践总结，就桥位测设外业工作的几个问题发表自己的看法。
The coordinate calculating of cast_in_place bridge construction survey in overpass supper structure transition curve is a problem.
指出了大型立交桥上部构造施工测量的难点之一是缓和曲线段现浇粱施工测量的坐标计算。
The application of CAD technology in survey and design of the highway bridge promotes the technological progress of road transport industry.
介绍CAD技术在公路桥梁勘察设计中的应用，促进了公路交通行业的技术进步。
The article proposes to clear away the earth and stones covering the two springs of arch of the bridge and then survey and determine with accuracy its clear span.
该文建议挖开掩盖赵州桥拱脚的石块和泥土，找到两拱脚，精确测定净跨径。
A description is given of working principles and method of optic fiber sensing survey technology based on its successful application to Wuzhong Yellow River Super Large Bridge.
光纤传感测试技术在国内桥梁建设中的应用刚刚起步，结合该项技术在吴忠黄河特大桥上的成功应用实例，阐述了光纤传感测试技术的原理和方法。
A description is given of working principles and method of optic fiber sensing survey technology based on its successful application to Wuzhong Yellow River Super Large Bridge.
光纤传感测试技术在国内桥梁建设中的应用刚刚起步，结合该项技术在吴忠黄河特大桥上的成功应用实例，阐述了光纤传感测试技术的原理和方法。
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