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首页> 外文会议>International Conference on Advances in Building Technology Vol.2, Dec 4-6, 2002, Hong Kong, China >A FAST GPS-BASED SYSTEM FOR SURVEY CHECK OF ROAD ALIGNMENTS
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A FAST GPS-BASED SYSTEM FOR SURVEY CHECK OF ROAD ALIGNMENTS

机译：基于GPS的快速道路定位检查系统

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摘要

Survey check of road alignments is an important quality assurance procedure in road construction. Before the kerb lines are actually laid, engineering surveyors have to set out road alignment reference marks and indicators. The positions of these indicators would be checked independently by consultant surveyors to ensure that they are set out according to design parameters. Many surveying methods can be adopted to set out and carry out survey check of road alignments. The most commonly used appreach is by radiation with a total station [see e.g. Uren J. and Price W.F., (1978), Schofield W. (1993)]. This conventional surveying method has the disadvantage of requiring a sufficient number of intervisible control points near the survey area. To fulfill this requirement, sufficient control points have to be maintained inside the project area throughout the project period, which is a difficult task for surveyors in complicated construction site environments. When consultant surveyors carry out the survey check of road alignments with the conventional method, they always encounter the same difficulty that request for survey check of setting out work is in a rather short notice, the results of which have to be reported as quickly as possible in order not to delay the progress, however, time is required to re-establish control points and to carry out data processing of survey check results. In order to alleviate this pressure imposed on consultant surveyors, a fast GPS-based system for survey check of road alignments is proposed. This system combines the GPS positioning techniques with an automatic database search and computational algorithm. With the high precision GPS Real-Time Kinematic (RTK) [ see e.g. Hefmann W. (1992), Leick, A. (1995) and Mi.sra P. et al. (2001)] positioning results fit into the processing engine, survey check results can be reported on-site.
机译：道路线的测量检查是道路施工中重要的质量保证程序。在实际铺设路缘线之前，工程测量师必须设置道路准线参考标记和指示器。顾问测量师将独立检查这些指标的位置，以确保根据设计参数列出这些指标。可以采用许多测量方法来设置和执行道路路线的测量检查。最常用的覆盖范围是通过全站仪辐射[例如参见Uren J.和Price W.F.（1978），Schofield W.（1993）]。这种传统的测量方法的缺点是，在测量区域附近需要足够数量的可交互控制点。为了满足此要求，在整个项目期间，必须在项目区域内保持足够的控制点，这对于复杂的施工现场环境中的验船师而言是一项艰巨的任务。当顾问测量师使用传统方法进行道路线形的测量检查时，他们总是遇到同样的困难，即要求在短时间内通知进行立项工作的测量检查，必须尽快报告结果。但是，为了不延迟进度，需要时间来重新建立控制点并进行调查检查结果的数据处理。为了减轻施加于顾问测量师的压力，提出了一种基于GPS的快速系统，用于对道路线的测量进行检查。该系统将GPS定位技术与自动数据库搜索和计算算法结合在一起。借助高精度GPS实时运动技术（RTK）[参见例如Hefmann W.（1992），Leick，A.（1995）和Mi.sra P.等人。 （2001年）]定位结果适合处理引擎，调查检查结果可以在现场报告。

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