EXPERIMENTAL INVESTIGATION ON THE INVERT STABILITY OF OPERATING RAILWAY TUNNELS WITH DIFFERENT DRAINAGE SYSTEMS USING 3D PRINTING TECHNOLOGY

Experimental investigation on the invert stability of operating railway tunnels with different drainage systems using 3D printing technology

In recent years, the invert anomalies of operating railway tunnels in water-rich areas occur frequently, which greatly affect the transportation capacity of the railway lines.Tunnel drainage system is a crucial factor to ensure the invert stability by regulating the external water pressure (EWP).By means of a three-dimensional (3D) printing model,

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