{"id":12997,"date":"2021-03-26T12:16:52","date_gmt":"2021-03-26T11:16:52","guid":{"rendered":"https:\/\/www.soletanche-bachy.com\/?p=12997"},"modified":"2023-01-17T12:32:14","modified_gmt":"2023-01-17T11:32:14","slug":"soletanche-bachy-brings-its-technical-expertise-to-rail-and-metro-transport","status":"publish","type":"post","link":"https:\/\/www.soletanche-bachy.com\/en\/soletanche-bachy-brings-its-technical-expertise-to-rail-and-metro-transport\/","title":{"rendered":"Soletanche Bachy brings its technical expertise to rail and metro transport"},"content":{"rendered":"
March 26th, 2021<\/p>\n<\/div>
Every day, millions of us take public transport to commute to work, see our loved ones and travel around… But do you know how our subways and train networks are built? From diaphragm walls to compensation grouting, from forepoling to tunnel boring, Soletanche Bachy\u2019s teams work tirelessly to create these complex and ambitious structures. This month we invite you to explore behind the scenes of these sites!<\/strong><\/p>\n<\/div> <\/p>\n These projects are impressive in terms of their scale as well as the range of foundation techniques they require.<\/span><\/span>\u00a0<\/span><\/p>\n As in the U<\/span><\/span>nited\u00a0<\/span><\/span>K<\/span><\/span>ingdom<\/span><\/span>, for example, where our colleagues at\u00a0<\/span><\/span>Bachy<\/span><\/span><\/a>\u00a0Soletanche Limited\u00a0<\/span><\/span>are currently working on the construction of a new high-speed rail link connecting London, the Midlands, the North and Scotland. The project will serve more than 25 stations and connect around 30 million people.\u00a0<\/span><\/span>\u00a0<\/span><\/p>\n In France, the Grand Paris Express also highlights the multi-disciplinary approach required by transport infrastructure projects.<\/span><\/span>\u00a0<\/span><\/p>\n For work package T2a on southbound line 15, for example, we are involved as part of the\u00a0<\/span><\/span>Horizon\u00a0<\/span><\/span>consortium in retaining<\/a>, freezing<\/a>, injection and tunnelling<\/a> work (with<\/span><\/span>\u00a0<\/span><\/span>Bessac<\/span><\/span>\u00a0<\/span><\/span><\/a>and\u00a0<\/span><\/span>Soletanche\u00a0<\/span><\/span>Bachy<\/span><\/span>\u00a0Tunnels<\/span><\/span><\/a>) and deep foundations (with\u00a0<\/span><\/span>Soletanche\u00a0<\/span><\/span>Bachy<\/span><\/span>\u00a0<\/span><\/span>Fondations<\/span><\/span>\u00a0<\/span><\/span>Sp\u00e9ciales<\/span><\/span><\/a>).\u00a0<\/span><\/span><\/p>\n<\/div> Line 15 Lot T2A of Grand Paris Express<\/p>\n<\/div>\n<\/div> To complete this project, we drew on extensive expertise in special foundation techniques and knowledge of soils. In fact, these extraordinary structures presented ambitious challenges, such as the construction of diaphragm walls<\/a> 1.50m thick and up to 70m deep\u2026 Challenges that were successfully overcome thanks to our teams' expertise!<\/span><\/span>\u00a0<\/span><\/p>\n<\/div> Space is limited, other transport lines and public places continue to operate and, finally, the worksites are surrounded by numerous<\/span>\u00a0<\/span>nearby buildings<\/span>, who our works<\/span>\u00a0must not impact<\/span>.<\/span>\u00a0<\/span><\/p>\n In Nice, France, during construction of tramway line 2 connecting the airport to Port\u00a0<\/span><\/span>Lympia<\/span><\/span>, for the und<\/span><\/span>erground section, our teams from<\/span><\/span>\u00a0<\/span><\/span>Soletanche<\/span>\u00a0<\/span><\/span>Bachy<\/span><\/span>\u00a0<\/span><\/span>France<\/span><\/span>,\u00a0<\/span><\/span>Bessac<\/span><\/span><\/a>\u00a0and\u00a0Soletanche\u00a0<\/span><\/span>Bachy<\/span><\/span>\u00a0Tunnels<\/span><\/span><\/a><\/span><\/span>\u00a0created a 3.2km tunnel, four underground stations and two shafts. This part of the worksite, particularly Garibaldi station,\u00a0<\/span><\/span>was located in<\/span><\/span>\u00a0the heart of the 19th century city centre, with a rich architectural and historical heritage. Our teams therefore had to work in a very restricted space while actively monitoring the ancient foundations of nearby buildings.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div> Nice Tramway in France<\/p>\n<\/div>\n<\/div>Techniques for large-scale projects<\/h2><\/div>
At Soletanche\u00a0<\/span><\/span>Bachy<\/span><\/span>, we create structures all around the world that ad<\/span><\/span>d<\/span><\/span>ress regions<\/span><\/span>\u2019 various mobility challenges \u2013 f<\/span><\/span>rom subways to train stations, underground stations, tunnels, railway lines and tramways\u2026<\/span><\/span>\u00a0<\/span><\/h4>\n
<\/span><\/div>Transport: worksites that are often in cities\u2026 and cramped!<\/h2><\/div>
What makes public transport sites particularly challenging is their location in urban environments, creating constraints associated directly with the working environment<\/span><\/span>:<\/span><\/span>\u00a0<\/span><\/span>T<\/span><\/span>he city with its buildings, the city with its inhabitants<\/span><\/span>.<\/span><\/span>\u00a0<\/span><\/h4>\n
<\/span><\/div>In New Zealand, on the CRL<\/span><\/span>\u00a0<\/span><\/span><\/span>C5 worksite,<\/span><\/span><\/h4>\n