![Saint Martin Base Tunnel, 5.000 mts of excavation achieved for the Turin-Lyon High Speed Railway | Ghella Saint Martin Base Tunnel, 5.000 mts of excavation achieved for the Turin-Lyon High Speed Railway | Ghella](https://www.ghella.com/sites/default/files/2018-09/smlp_milestone.jpg)
Saint Martin Base Tunnel, 5.000 mts of excavation achieved for the Turin-Lyon High Speed Railway | Ghella
![Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy](https://c8.alamy.com/comp/TRJXH8/lyon-turin-tav-high-speed-railway-tunnel-construction-site-saint-martin-la-porte-savoie-auvergne-rhne-alpes-region-france-TRJXH8.jpg)
Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy
![Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Southern section between Saint-Martin -de-la Stock Photo - Alamy Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Southern section between Saint-Martin -de-la Stock Photo - Alamy](https://c8.alamy.com/comp/KK4MK9/saint-martin-de-la-porte-savoy-south-eastern-france-works-of-the-turinlyon-KK4MK9.jpg)
Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Southern section between Saint-Martin -de-la Stock Photo - Alamy
![Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy](https://c8.alamy.com/comp/TRJXED/lyon-turin-tav-high-speed-railway-tunnel-construction-site-saint-martin-la-porte-savoie-auvergne-rhne-alpes-region-france-TRJXED.jpg)
Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy
![Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy](https://c8.alamy.com/comp/TRJXDK/lyon-turin-tav-high-speed-railway-tunnel-construction-site-saint-martin-la-porte-savoie-auvergne-rhne-alpes-region-france-TRJXDK.jpg)
Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy
![PDF] Back-analysis of the extreme squeezing conditions in the exploratory adit to the Lyon-Turin base tunnel | Semantic Scholar PDF] Back-analysis of the extreme squeezing conditions in the exploratory adit to the Lyon-Turin base tunnel | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/049ba83488f4e4f426c9b594a3e05defb91c1f6e/3-Figure4-1.png)
PDF] Back-analysis of the extreme squeezing conditions in the exploratory adit to the Lyon-Turin base tunnel | Semantic Scholar
![Squeezing rock" reduces the tunnel cross section as well evidenced in... | Download Scientific Diagram Squeezing rock" reduces the tunnel cross section as well evidenced in... | Download Scientific Diagram](https://www.researchgate.net/publication/301649225/figure/fig7/AS:668312920936479@1536349625969/Squeezing-rock-reduces-the-tunnel-cross-section-as-well-evidenced-in-the-Saint-Martin.jpg)
Squeezing rock" reduces the tunnel cross section as well evidenced in... | Download Scientific Diagram
![Squeezing rock reduces the tunnel cross section in the Saint Martin La... | Download Scientific Diagram Squeezing rock reduces the tunnel cross section in the Saint Martin La... | Download Scientific Diagram](https://www.researchgate.net/publication/297145924/figure/fig1/AS:336929607438338@1457341686172/Squeezing-rock-reduces-the-tunnel-cross-section-in-the-Saint-Martin-La-Porte-access-adit.png)
Squeezing rock reduces the tunnel cross section in the Saint Martin La... | Download Scientific Diagram
![Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy](https://c8.alamy.com/comp/TRJXH5/lyon-turin-tav-high-speed-railway-tunnel-construction-site-saint-martin-la-porte-savoie-auvergne-rhne-alpes-region-france-TRJXH5.jpg)
Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy
![Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Here, opening of several accesses to the tu Stock Photo - Alamy Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Here, opening of several accesses to the tu Stock Photo - Alamy](https://c8.alamy.com/comp/KK4MHX/saint-martin-de-la-porte-savoy-south-eastern-france-works-of-the-turinlyon-KK4MHX.jpg)
Saint-Martin-de-la-Porte (Savoy, south-eastern France): works of the TurinÐLyon high-speed railway tunnel. Here, opening of several accesses to the tu Stock Photo - Alamy
![Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy](https://c8.alamy.com/comp/TRJXGT/lyon-turin-tav-high-speed-railway-tunnel-construction-site-saint-martin-la-porte-savoie-auvergne-rhne-alpes-region-france-TRJXGT.jpg)
Lyon-Turin (TAV) High-speed railway tunnel construction site, Saint-Martin La Porte, Savoie, Auvergne-Rhône-Alpes Region, France Stock Photo - Alamy
![Squeezing rock reduces the tunnel cross section in the Saint Martin La... | Download Scientific Diagram Squeezing rock reduces the tunnel cross section in the Saint Martin La... | Download Scientific Diagram](https://www.researchgate.net/publication/276078398/figure/fig5/AS:363874344816647@1463765812937/Squeezing-rock-reduces-the-tunnel-cross-section-in-the-Saint-Martin-La-Porte-access-adit.png)