The Construction Monitoring Of The Box Culvert Jacking Of The Zhengyang North Road Through The Hengda Highway

Underpass existing line project construction,culvert jacking construction method has become an important method of construction.Efficient,safe,small perturbations in engineering advantages of being widely promoted and implemented.The construction process does not affect the normal operation of the existing lines,but also to prevent cracking of the road surface displacement.Different projects due to different geological conditions,the line is different,a different time period and different environmental protection requirements,and therefore different specific projects,experience of the existing project can not be fully replicated,many construction technology,monitoring technology needs to be improved.Taking Hengyang wear large scale highway projects under the North steam sun as the background,"the construction,monitoring,early warning," the main line,and the whole process of construction on the existing highway sophisticated monitoring to ensure safe operation of existing lines,and through key theories of technical analysis,engineering calculations and data binding site real-time monitoring,long-span box culvert jacking key technology to do a comprehensive study,as follows:(1)Based on project safety,quality,schedule,cost and other indicators requirements,in box culvert jacking construction technology based on the experience,the system under study steamed Yang Road through large scale highway culvert jacking summarizing the previous complete construction technology.(2)According to the geological conditions beneath the steam Zheng Yang North Road highway culvert jacking engineering,hydrological characteristics of road transport and highways,the study of factors that affect settlement construction in the high-speed road surface displacement from the theoretical level,too the effect of moving loads and vibration disturbance construction is the most important factor in the conclusion,these two factors must guard against the harm caused by the project.(3)By using the most cutting-edge real-time monitoring system for the construction of housing Jacking process real-time tracking and monitoring,while the large scale highway pavement of Settlement and displacement observation high frequency;construction monitoring analysis and research methods of science,by monitoring the results of the analysis show:the jacking process pavement settlement are less than 15mm,so you can ensure the safety of the process line during jacking operations and safety of construction workers.Research article is not only to ensure the smooth completion of the project,but also to provide a reference for other similar projects.