The Application Of Information Feedback Technology In The Construction Of Niutoushan Tunnel

With the continuous improvement of China's transportation system, the engineering geological conditions met in tunnel construction have become increasingly complex,especially in the past few years, a large number of high-speed railway tunnel projects have started construction. The past simple experience of construction and engineering analogy method can not fit for the actual needs of the construction site.So,it is necessary to reflect the variation law of the surrounding rock in the tunnel through the real-time monitoring,to make scientific prediction of the deformation of the tunnel and find more suitable scheme for the tunnel excavation and supporting. The result of preliminary treatment and analysis about the monitored data are timely feedback to the owners, design units, supervision and construction units in order to optimize the various problems in the design and construction of the tunnel.The paper based on the Niutoushan tunnel will study the application of information feedback technology in tunnel construction. The main research contents include the following three aspects:first of all, according to the actual situation of Niutoushan tunnel surrounding rock and construction conditions,to determine the tunnel monitoring scheme for Niutoushan tunnel construction and choose of scientific and reasonable arrangement of monitoring cross-section. Secondly, based on the real time monitoring of each design monitoring section,the variation law of the deformation of surrounding rock,the convergence of vault and the ground settlement are obtained by contrasting and analysing the results of the six regression models which using Origin software dealt with.Finally,tunnel excavation and support scheme be optimized by the surrounding rock change rate and deformation. The experimental results,depend on the optimization planed, show that the optimization scheme is scientific and reasonable. The successful application of information feedback technology in the tunnel has greatly reduced the risk of the construction and improve the quality of the project. Other types of engineering construction also has reference significance...