The Ceneri Base Tunnel (CBT) is a railway base tunnel under construction in Switzerland’s Canton Ticino. It will pass under Monte Ceneri between Camorino in the Magadino Flat and Vezia near Lugano, and will bypass the current high-level rail route through the Monte Ceneri Tunnel.
It is composed of two single-track tunnels, each of them having a length of 15.4 km. It is another part of the Swiss AlpTransit initiative NRLA. The final breakthroughs took place on 21 January 2016 (west tube) and 26 January 2016 (east tube) and the tunnel is expected to open in December 2020.
On completion, the CBT will be an important feeder in the south for the Gotthard Base Tunnel as the existing, proportionally steep track over Monte Ceneri isn’t suitable for high-speed rail or heavy freight trains. Another feeder is the Luino link along Lake Maggiore which is about to be upgraded by Italy in prospect of the opening of the Gotthard Base Tunnel. Both links meet in the Magadino Flat in the future Camorino Node.
Complementing the Gotthard Base Tunnel which was inaugurated earlier this year, the Ceneri Base Tunnel will enable the fastest journey time between Zürich and Milano to be cut to under 3h.
Effective support technology is a critical issue in tunnel construction. It is very necessary to popularize and apply an anchor system with simple operation and high anchoring quality. Anchor bolt has the functions of drilling, grouting and anchoring. It’s a kind of advanced anchor system, which can solve hole collapse problem when drilling and ensure the grouting effect under the complicated geological conditions. Anchor bolt can be arbitrarily cut, jointed, pre-stressed and release load, which has a great application value
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