{"id":33510,"date":"2026-06-30T14:23:00","date_gmt":"2026-06-30T12:23:00","guid":{"rendered":"https:\/\/www.soletanche-bachy.com\/soletanche-bachy-france-regeneration-du-tunnel-de-beaucaire\/"},"modified":"2026-08-12T14:46:16","modified_gmt":"2026-08-12T12:46:16","slug":"soletanche-bachy-france-rehabilitation-of-the-beaucaire-tunnel","status":"publish","type":"post","link":"https:\/\/www.soletanche-bachy.com\/en\/soletanche-bachy-france-rehabilitation-of-the-beaucaire-tunnel\/","title":{"rendered":"Soletanche Bachy France: Rehabilitation of the Beaucaire Tunnel"},"content":{"rendered":"

30\/06\/2026<\/p>\n<\/div>

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Soletanche Bachy France: Rehabilitation of the Beaucaire Tunnel<\/h1><\/div>
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Soletanche Bachy France is involved in the rehabilitation of the Beaucaire Tunnel, a railway structure weakened by time.<\/p>\n<\/div>

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A century-old structure at the heart of a modernization program<\/strong><\/h2><\/div>

Located on the Tarascon\u2013S\u00e8te line, the Beaucaire Tunnel is undergoing a major operation as part of the French railway network regeneration program. Built in 1837 in Burdigalian Miocene molasse, this 300-meter single-tube structure accommodates two tracks and represents a key link in the Mediterranean rail corridor.<\/p>\n

After nearly two centuries of operation, the tunnel features sections of unlined vault requiring urgent structural intervention. This project illustrates a recurring challenge across the French network: preserving a legacy of aging infrastructure while adapting it to modern safety and performance standards.<\/p>\n<\/div>

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Project objectives<\/strong><\/p>\n

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The operation pursues two complementary goals:<\/p>\n

Short term \u2014 safety and durability<\/strong>
The treatment of unlined vault sections is the project\u2019s top priority. The objective is to eliminate instability risks, strengthen the tunnel lining, and ensure the long-term durability of the structure.<\/p>\n

Medium term \u2014 adaptation for rail freight (by 2030)<\/strong>
The project is part of a forward-looking approach: preparing the tunnel for a larger clearance gauge, a prerequisite for accommodating next-generation freight trains. This upgrade anticipates the growth of rail freight, a key driver in the transition toward lower-carbon mobility.<\/p>\n<\/div>

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Specialized techniques deployed for a complex project<\/strong><\/h3><\/div>
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The work involves a range of advanced civil engineering and underground construction expertise:<\/p>\n