Construction surveying control system for middle route of South-to-North Water Diversion Project
Yan Jian-guo · Shuili shuidian ke-ji jinzhan · 2007
An introduction was given to the area of surveying control,the constitution of the surveying control net and the method for its establishment for the first stage of the middle route construction of the South-to-North Water Diversion Project.The method for accuracy determination of the control net was discussed,and some related main technical problems were presented,including the general scheme of the control net for the project with overlength water transfer route,the incompatibility of result of the national triangulation and measures for its treatment,high-accuracy GPS short-side hybrid net adjustment model and corresponding software compilation,refining of geoidal surface and the application of RTK technique to the South-to-North Water Diversion Project,development of data management system for engineering survey,and the verification of main technical indexes for engineering survey.