Context of the project<\/h2><\/div>This project will allow the transfer of the place du March\u00e9 Neuf surface parking facility to a 5-basement level underground car park<\/a> with space for 410 vehicles.<\/p>\n<\/div>Description of the project<\/h2><\/div>The width of this 70m long structure varies from 30 to 42m. It comprises two 15m wide bays providing a central traffic lane with angled parking spaces off either side. The 2 bays are separated by a single row of round columns for user safety and convenience.<\/p>\n<\/div>
Our solution<\/h2><\/div>Retaining structure – earthworks<\/strong><\/p>\nThe upper levels were constructed inside a retaining wall<\/a> installed before the earthworks were commenced. This 7m deep wall consists of metal stanchions anchored into bored piles<\/a>. During the earthworks, the stanchions are supported by 7m long nails while the ground between the stanchions is supported using timber lagging. The lower levels were constructed inside a nailed shotcrete wall constructed progressively as excavation work advanced<\/p>\nInternal structure<\/strong><\/p>\nThe internal structure was built from the bottom up:<\/p>\n
\n- the foundations were laid followed by construction of the central row of columns,<\/li>\n
- the beams and the floors were then constructed.<\/li>\n<\/ul>\n
The 15m prefabricated honeycomb slab floors rest on a bearing structure anchored into the walls and tied into the row of columns. Traditional formwork was used for the up and down rotunda.<\/p>\n
The upper slab is constructed using 15t prefabricated beams and prestressed floor support slabs.<\/p>\n<\/div>
![](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/08\/Parking-Marche-Neuf_Termine-slider-1024x436.jpg\")
<\/span><\/li>![](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/08\/Parking-Marche-Neuf_fouille-paroi-slider-1024x436.jpg\")
<\/span><\/li><\/ul><\/div><\/div><\/div><\/div>Type of project:<\/h3><\/div>![\"Car](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/03\/Parking-souterrain.png\")
<\/a><\/span>Car park<\/h4><\/div><\/div><\/div>Location:<\/h3><\/div>France<\/p>\n<\/div>
Subsidiary of Soletanche Bachy:<\/h3><\/div>Soletanche Bachy France<\/a><\/p>\n<\/div>Project owner:<\/h3><\/div>QPARK France<\/a> (Saint Germain stationnement S.A.S.)<\/p>\n<\/div>Prime contractor:<\/h3><\/div>Cabinet Thierry Beaulieu<\/p>\n<\/div>
Works period:<\/h3><\/div>04\/2005 \u2013 05\/2007<\/p>\n<\/div>
Types of techniques:<\/h3><\/div>![\"Retaining](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/03\/Ecran-de-soutenement.png\")
<\/a><\/span>Retaining wall<\/h4><\/div><\/div><\/div>![\"Civil](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/03\/Reprise-en-sous-oeuvre.png\")
<\/a><\/span>Civil engineering<\/h4><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Key figures of the project<\/p><\/h2><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div>0<\/span><\/div>nails<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>0<\/span>m\u00b2<\/span><\/div>of earthworks<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Related techniques<\/h2><\/div><\/div><\/div><\/i>See all the techniques<\/span><\/a><\/div><\/div><\/div>- <\/span><\/a><\/span>
Civil engineering<\/a><\/h3><\/div><\/div><\/div><\/div><\/div> We optimise the management and dimensioning of your project.\u00a0 Soletanche Bachy offers a [...]<\/p><\/div>
<\/i>Find out more<\/span><\/a><\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2022\/05\/5CY6181_plancher-prefa_SPIA_Yves-Chanoit_vignette-1.jpg\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div><\/div><\/li>\n- <\/span><\/a><\/span>
Retaining structures<\/a><\/h3><\/div><\/div><\/div><\/div><\/div> We help you to carry out vertical excavation in total safety.\u00a0 Soletanche Bachy [...]<\/p><\/div>
<\/i>Find out more<\/span><\/a><\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2022\/05\/CH_20200907_007-vignette.jpg\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div><\/div><\/li>\n<\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Our projects<\/h2><\/div><\/div><\/div><\/i>See all our projects<\/span><\/a><\/div><\/div><\/div>
This project will allow the transfer of the place du March\u00e9 Neuf surface parking facility to a 5-basement level underground car park<\/a> with space for 410 vehicles.<\/p>\n<\/div> The width of this 70m long structure varies from 30 to 42m. It comprises two 15m wide bays providing a central traffic lane with angled parking spaces off either side. The 2 bays are separated by a single row of round columns for user safety and convenience.<\/p>\n<\/div> Retaining structure – earthworks<\/strong><\/p>\n The upper levels were constructed inside a retaining wall<\/a> installed before the earthworks were commenced. This 7m deep wall consists of metal stanchions anchored into bored piles<\/a>. During the earthworks, the stanchions are supported by 7m long nails while the ground between the stanchions is supported using timber lagging. The lower levels were constructed inside a nailed shotcrete wall constructed progressively as excavation work advanced<\/p>\n Internal structure<\/strong><\/p>\n The internal structure was built from the bottom up:<\/p>\n The 15m prefabricated honeycomb slab floors rest on a bearing structure anchored into the walls and tied into the row of columns. Traditional formwork was used for the up and down rotunda.<\/p>\n The upper slab is constructed using 15t prefabricated beams and prestressed floor support slabs.<\/p>\n<\/div> France<\/p>\n<\/div> Soletanche Bachy France<\/a><\/p>\n<\/div> QPARK France<\/a> (Saint Germain stationnement S.A.S.)<\/p>\n<\/div> Cabinet Thierry Beaulieu<\/p>\n<\/div> 04\/2005 \u2013 05\/2007<\/p>\n<\/div> Key figures of the project<\/p><\/h2><\/div> We optimise the management and dimensioning of your project.\u00a0 Soletanche Bachy offers a [...]<\/p><\/div> We help you to carry out vertical excavation in total safety.\u00a0 Soletanche Bachy [...]<\/p><\/div>Description of the project<\/h2><\/div>
Our solution<\/h2><\/div>
\n
<\/span><\/li><\/span><\/li><\/ul><\/div>Type of project:<\/h3><\/div>
<\/a><\/span>Car park<\/h4><\/div><\/div><\/div>
Location:<\/h3><\/div>
Subsidiary of Soletanche Bachy:<\/h3><\/div>
Project owner:<\/h3><\/div>
Prime contractor:<\/h3><\/div>
Works period:<\/h3><\/div>
Types of techniques:<\/h3><\/div>
<\/a><\/span>Retaining wall<\/h4><\/div><\/div><\/div>
<\/a><\/span>Civil engineering<\/h4><\/div><\/div><\/div>
Related techniques<\/h2><\/div><\/div><\/div>
Civil engineering<\/a><\/h3><\/div>
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div><\/div><\/li>\nRetaining structures<\/a><\/h3><\/div>
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div><\/div><\/li>\n<\/ul>Our projects<\/h2><\/div><\/div><\/div>
![](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/09\/CH_25012011_014_Digue-Cusset_C.Helsy-vignette.jpg\")
<\/a><\/span><\/div><\/div><\/li>\n![](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/08\/3205-Trial-First-HC05-Barge-ABS_juin17-vignette.jpg\")
<\/a><\/span><\/div><\/div><\/li>\n![](\"https:\/\/www.soletanche-bachy.com\/wp-content\/uploads\/sites\/18\/2023\/08\/k20120719_8155\u00a9-MVB-Andras-Nemeth_Vignette.jpg\")
<\/a><\/span><\/div><\/div><\/li>\n<\/ul><\/div><\/div><\/div><\/div><\/div>