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DRILLING IN THE SALTWOOD TUNNEL
- SRS design bespoke 7 station drilling rig
- 2,300 holes, 35mm diameter, up to 1,000mm deep
- 105 holes per hour
- Interlocks prevent drilling while moving
Saltwood Tunnel lies on the main rail route to the Channel Tunnel crossing near Folkestone. The tunnel had to be strengthened as part of the preparation for the Channel Tunnel Rail Route, but it carried a very busy piece of railway with twin ‘third rail’ tracks into Dollands Moor Sidings. The tunnel could only be made available for engineering work once a week for 5 hours, with occasional longer track possessions...
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