Study on construction surveying control network of South-to-North Water Diversion Middle Route Project
Jiang Benhai · Yangtze River · 2010
According to the characteristics of South-to-North Water Diversion Middle Route Project such as large scale,a large amount of structures and long water diversion route,we comprehensively introduce the technologies of large-scale and high-accuracy construction surveying control network of hydraulic project,including: study on schemes of construction surveying control system,accuracy and grade determination of construction control network,selection of construction control network coordinate system for long-distance water diversion project,research on stability of various survey mark types under different geological conditions,stability analysis and incompatibility problem study of national control points,balancing calculation of GPS short side hybrid network and study on application software,correcting calculation of lunisolar gravitation and study on application software,establishment of technological standards of construction survey.The successful establishment of construction surveying control network of South-to-North Water Diversion Middle Route Project provides timely and reliable surveying support and technical service.