The Construction Technology Of Rail Pipe Jacking Method And Risk Management In Guangzhou City

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.This paper analyzed and summarized the rail pipe jacking construction technology of Guangzhou city has been completed,with the relevant case reviewed,the optimization design and the corresponding construction technology,ensure to maximize economic benefits and reduce the risk of security situation,and provide reference for the future implementation of the track and promotion value the traffic of pipe jacking construction under similar conditions.The author is personally engaged in the management of the construction and management of Guangzhou Metro.The pipe jacking machine project engineering,composite ground,earth pressure balance pipe jacking pipe jacking and slurrypipe jacking construction project is put forward to develop several sets of technical solutions given and demonstrated in the early research,the author detailed several sets of construction scheme on this paper,according to the order of first proposed organizing a detailed design scheme of architecture pipe jacking engineering,pipe jacking machine of Guangzhou city rail transportation pipe jacking method application and innovation of Guangzhou rail transit and pipe jacking construction engineering technology and risk management case,and the author as the main participant of the integration of technology and engineering risk management and data collection work.Firstly,through the study of relevant literature,detailed research progress at home and abroad are summarized in rectangular pipe jacking construction comprehensive technology research,research and selection of pipe jacking machine structure,and mainly study the system,comprehensive application of pipe jacking construction technology summary,perfect type,large section and rectangular section tunnel pipe jacking.Next,based on the given engineering example,analysis of the construction process to strengthen the monitoring and measurement,combined with monitoring data,supporting measures to determine a reasonable and safe implementation of pipe jacking construction safety under bad geological condition;the monitoring data to guide pipe jacking tunnel construction,realize the real information,provides for the evaluation of the safety of tunnel construction on the basis of.Finally,on the one hand,based on the six line East Lake station construction parameters for example,obtains the theory data through simulation calculation and 3D finite element analysis,compared with the actual data,focuses on the analysis of difference,and to provide reference for future construction;on the other hand,experience encountered in engineering example in the main the top tube construction summarize the problems and solutions in the process,summed up the comparative analysis of the effect of actual construction and investment,so as to improve the ability of risk management.