广州东圃立交改造综合测量关键技术路线探讨

Research on Key Technical Route of Comprehensive Survey of Interchange Renovation in Guangzhou Dongpu

广州东圃立交由原高速公路调整为城市快速路后,原匝道绕行长度长,占地广,对城市用地造成极大浪费,因此综合改造工程显得十分重要。本文主要介绍了综合改造辅助设计测量的前期地理信息数据获取方法,并探索通过数据整理的方式实现成果矢量数据与GIS数据的转换,同时引入地面LiDAR技术对形状怪异弧度较大的建筑外墙进行辅助竣工验收测量,为同类型的测量提供了一定借鉴。

After the adjustment of Guangzhou Dongpu interchange from former motorway to the urban expressway,the original ramp has a long bypass and covers a wide area,which is a great waste of urban land.Therefore,the comprehensive renovation project is more and more important.This paper mainly introduces the method of obtaining geographic information data for aided design survey in comprehensive renovation.It explores the conversion between the vector data and the GIS data by the means of data collation,and further introduces terrestrial LiDAR technology to the auxiliary completion acceptance measurement of external walls with strange radian.In this way,it provides some reference for the similar type of survey.