Research On The Mechanic Properties Through Observation In Field And Numerical Analysis Of The Construction Process Of Doble-arch Highway Tunnel With Soft And Weak Surrounding Rocks

Based on the concrete engineering of dunshang double-arch highway tunnel, This paper researches the mechanic properties of double-arch highway tunnel with soft and weak surrounding rocks through on-the-spot arrangement of the test components. With the aid of 2D-σ program, this paper make a simulated analysis of the whole construction process with three kinds of construction methods and also contrasts with the test results on the spot. The analysis results provide a scientific basis and technical guidance for the construction optimization of double-arch highway tunnels.