Construction Technology Research On Xitaizi Three-Layer Curved Middle Wall Twin-arch Tunnel

With the development of national economy, highway traffic transportation is increasing, the construction of highway has developed form one-lane highway to today's two-lane highway. And in mountains region in order to satisfy the requirements and circuit design topography condition requirements, multiple-arch tunnel is a special kind and is indispensable section type. Multiple-arch tunnel is multi-arch highway tunnel in the current build process based on summary demonstrates a new structure form. At present, multiple-arch tunnel construction experience and construction technology research is very short deficiency, therefore, it is necessary to multiple-arch tunnel construction site, so as to summarize the multi-arch tunnel further theoretical research to provide experience and reference value.Based on the west stands multiple-arch tunnel is expounded, combining multiple-arch tunnel current research achievements, re-enacted the west counter the multi-arch highway tunnel construction technical scheme, control the construction cost, and to ensure the construction period, do scientific construction. Secondly, analysis discussed cage mountain multiple-arch tunnel whole construction course, summarizes multiple-arch tunnel construction technique and construction experience, and draw some useful construction achievements. Focuses on multiple-arch tunnel construction technology, the analysis construction difficulties and construction of key, and surrounding rock stress and pressure etc in wall is studied. Finally, discussed the construction process of monitoring measurement data, summarize feedback information, accomplish truly monitoring site monitoring and information feedback, guarantee the construction technology of science, construction safety tunnel. Through the music wall multiple-arch tunnel construction technology in-depth analysis and research, obtained some new, typical experience and some results. These achievements and method can for the following multiple-arch tunnel research provides meaningful reference and value.