Mumbai-Ahmedabad Bullet Train On Right Track: Ghansoli Tunnel Excavation Complete
10 months ago

Mumbai-Ahmedabad Bullet Train On Right Track: Ghansoli Tunnel Excavation Complete

News 18  

In a significant development for the Mumbai-Ahmedabad bullet train project, a 394-meter-long Additionally Driven Intermediate Tunnel at Ghansoli has been successfully excavated. The 26-meter-deep inclined ADIT will support the construction of a 3.3-km tunnel segment using the New Austrian Tunnelling Method, allowing simultaneous tunnelling approximately 1.6 meters on each side. These include Surface Settlement Points, Optical Displacement Sensors or tilt meters for displacement measurement in both axes, By Reflect Target for 3D target monitoring, Strain Gauges for detecting micro strains on the tunnel surface, and Seismographs for monitoring Peak Particle Velocity and seismic waves. To construct this tunnel, TBMs with cutter heads of 13.6 meters in diameter will be used, significantly larger than the typical 6-8 meter diameter heads used in urban metro tunnels, which accommodate only one track.

History of this topic

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