Tunnels et ouvrages souterrains

Tunnels and Underground Structures

Safety is a priority from the outset

We have many years of experience in planning, designing and building complex underground structures, in interaction with existing structures. Our acknowledged expertise in the design, construction methods and management of underground projects is based on powerful calculation models enabling us to take on major rail and road infrastructure projects, hydropower plants and waste storage facilities.

Combined skills

Our skills are particularly sought after for road and rail tunnels as well as underground works belonging to public bodies, franchisees, private companies or enterprises active in Europe and around the world. Our combined skills in geotechnics, design of structures and electromechanical facilities, enables the production of works meeting the rising demands for performance, reliability and safety.

PDF to download

Brochure Geotechnical Engineering

Projects you might be interested in…

Discover some projects of BG...

> All projects

The website encountered an unexpected error. Please try again later.
Error: Call to a member function getGeneratedLink() on string in emblematik_preprocess_file_link() (line 650 of themes/BG21/emblematik.theme). 
emblematik_preprocess_file_link() (Line: 287)
Drupal\Core\Theme\ThemeManager->render() (Line: 436)
Drupal\Core\Render\Renderer->doRender() (Line: 201)
Drupal\Core\Render\Renderer->render() (Line: 450)
Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 78)
__TwigTemplate_31a3838b248f933006958367c3e40d0b8e6655d08ff4cda93e95b86393739009->doDisplay() (Line: 405)
Twig\Template->displayWithErrorHandling() (Line: 378)
Twig\Template->display() (Line: 390)
Twig\Template->render() (Line: 65)
twig_render_template() (Line: 384)
Drupal\Core\Theme\ThemeManager->render() (Line: 436)
Drupal\Core\Render\Renderer->doRender() (Line: 449)
Drupal\Core\Render\Renderer->doRender() (Line: 201)
Drupal\Core\Render\Renderer->render() (Line: 157)
Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 578)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 158)
Drupal\Core\Render\Renderer->renderPlain() (Line: 525)
Drupal\node\Plugin\Search\NodeSearch->indexNode() (Line: 489)
Drupal\node\Plugin\Search\NodeSearch->updateIndex() (Line: 121)
search_cron()
call_user_func_array() (Line: 392)
Drupal\Core\Extension\ModuleHandler->invoke() (Line: 250)
Drupal\Core\Cron->invokeCronHandlers() (Line: 136)
Drupal\Core\Cron->run() (Line: 75)
Drupal\Core\ProxyClass\Cron->run() (Line: 65)
Drupal\automated_cron\EventSubscriber\AutomatedCron->onTerminate()
call_user_func() (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 100)
Symfony\Component\HttpKernel\HttpKernel->terminate() (Line: 32)
Stack\StackedHttpKernel->terminate() (Line: 687)
Drupal\Core\DrupalKernel->terminate() (Line: 22)