Critical construction measurement techniques and application of large-diameter and long-distance pipe jacking
Pipe jacking construction measurement is an important component of pipe jacking construction technology,which aims to measure the spatial position of the top pipe machine in real-time,guide the excavation of the top pipe ma-chine along the design axis,and ensure smooth penetration.Taking a a sewage discharge pipeproject in Shanghai as the background,combing with the characteristics of large-diameter and long-distance curved pipe jacking of the project,the paper introduces critical pipe jacking measurement techniques from aspects of ground control survey,pipe jacking con-struction and guidance survey,testifies its feasibility and guarantees the pipe jacking construction quality as well.
construction surveycurve pipe jackinglarge diameterlong distance