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Analysis of the Site-Monitored Data from a Double-Route Tunnel

ZHOU Yi-tao1,2, XUE Xiao-hui1,2, WANG Sheng-tao1,2, XIAO Wan-ming3(1.Graduate School, Shijiazhuang Railway Institute, Shiiiazhuang 050043, China;2.School of Civil Engineering, Shijiazhuang Railway Institute, Shiiiazhuang 050043, China;3.The Tunnel Group Co.Ltd. of the Railway Ministry of China, Luoyang 471009, China)  
Being a shallow-submersion double-route tunnel, the Jinshazhou Tunnel of the Wu-Guang Passenger-Transportation Railway, whose surrounding rock is complex, is constructed with the bench cut method of NATM. In order to further revise and improve the original design, and effectively guide the following construction, a staged analysis method is applied to analyzing the site monitored data from the construction by the bench cut method, which is proved to help better guide construction and more accurately predict the extremes.
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