Research And Application Of New Austrian Tunneling Method Tunnel Deformation Monitoring System

Since1999, the construction of rail transit in China has entered a period ofvigorous development, by the end of2012, there are15urban rail transit have been putinto operation. At the same time, there are more than1500Km rail transportation are ina tight construction. the operation of urban rail transit Rapidly and timelyhas broughtgreat convenience to people’s travel,However, due to the high cost of its investment,construction difficult, tight deadlines factors exist objectively, but also makes the Urbanrail transit construction has a greater risk. Specifically，Subway construction in thecomplex geological conditions underground space, due to the balance of the originalground stress broken by construction, so that security incidents can happen easily like atunnel cave collapsed, flooding, ground subsidence. As a precaution to establish along-term effective subway tunnel construction safety pre-Warning system to monitorthe deformation of the tunnel structure and the surrounding environment is verynecessary.However, there are many drawbacks for traditional monitoring methods, includingmonitoring means, data management and analysis, Can not meet the requirements of thenational advocacy information construction.The thesis is divided into six chapters and the first chapter is the introduction. Thesecond chapter analyzed the deformation cause of the tunnel structure, based on theNew Austrian Tunneling Method,describes the deformation of the influence factors,putforward response to the large deformation encountered in the construction process，Finally, summed up the problem of site monitoring.The third chapter is deformation monitoring system design based on NATM. Afterdemonstrated the feasibility of the system implementation, According to userrequirements and system data source and its characteristics, The system database andthe database table structure is designed，Finally completed the system function moduledivision.The fouth chapter is deformation monitoring system implementation based onNATM. Expounds the hardware and software necessary to support of systemimplementation, and on this basis, Implements the system of data acquisition andanalysis of the two big functions. Which is responsible for data collection to monitorsubsystem, the acquisition of data, including monitoring auxiliary information, geometric deformation information, Stress information etc.Auxiliary information inputproject database as the monitoring log,Geometric deformation informationis collectedautomaticly by the Lecia TM30measuring robot;Analyzer Responsible for monitoringdata analysis, it is divided into real-time monitoring, data analysis, early warning andreport forms output module.The fifth chapter is deformation monitoring system application in the jinshantemple station of metro line6chongqing.Thesis introduced the application of the systemcombining with engineering examples. The author proposed a united analysis Methodfor tunnel deformation monitoring, given the recommendations to curb deformed trendbased on typical situations.The sixth chapter is the conclusion and prospect. Summarizes the paper’s mainwork and innovation point, put forward the deficiency of the research, someSuggestions for further research were proposed and prospected.