Research On Application Technology Of Pipe Jacking Method In The Sewage Pipe Network

Pipe jacking construction technology is the method of pipeline laying construction technology in a kind of environment friendly, modern, has the construction process does not affect the ground transportation, not destroy the environment, impact on the construction area residents of small, short construction period, low cost, good safety and other advantages, has been widely used in the city the bottom line network, underground walkways, crossing the railway and highway and river channel and other underground engineering, its application prospect is very wide.In recent years, with the rapid development of city construction, extensive influence of pipe jacking construction technology method, pipe jacking construction of trenchless construction technology as one, both in the construction theory, construction technology, and construction equipment, have make a spurt of progress of development, new technology and new methods appear continuously.This paper summarizes the construction technology at home and abroad and the development of pipe jacking construction technology of pipe jacking method and technical problems encountered, analyzes the basic principle of pipe jacking construction technology of law, including the relevant equilibrium theory of pipe jacking construction composition, key technology and pipe jacking construction. Then, analyzes the key technology of pipe jacking construction method in the pipe jacking construction, including:Calculation of jacking force reduction measures, grouting work pit selection and installation, jacking mode selection etc.. On the analysis of calculation of jacking force, the force of pipe jacking construction process are analyzed, studied the factors and the influence of jacking force in pipe jacking construction, comparative analysis of the jacking force is usually used at home and abroad of the calculation theory and calculation model.On the base of analyzing the theory of pipe jacking construction technology method, combined with the example of pipe jacking construction of Nan’an District of Chongqing City. Huang Jueya area sewage pipe network project, analyses the technical difficulties encountered during pipe jacking construction of the sewage pipe network project deployment, construction process and solving methods, including work well and receive well, pipe jacking construction into the hole and pipe out of the hole, the technical measures of pipe jacking measurement control, pipe jacking construction on the ground structures influence analysis and control measures. At the same time, analysis of the sewage pipe network engineering pipe jacking construction with the economic and social benefits, combined with hydrological geology, the climate characteristic of Chongqing presents a mountainous city pipe jacking construction suggestions for future promotion, in construction technology of pipe jacking method in Chongqing area, provide a reference.