Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Elisabeth Center

BASEMENTS

An intricate approach was needed by Soletanche-Bachy's Hungarian division HBM in forming three levels of underground parking at the Elisabeth Center development, working around a residential building scheduled for demolition at a later date.

Ground conditions on the 60m by 70m site in Budapest's old town or 7th district are typical of the area, with 3m of fill, overlying 3m of silty sand, a further 6m of sandy gravel and then stiff grey clay below 12m depth.

Groundwater is 4.5m below ground surface.

HBM keyed the diaphragm wall into the underlying clay around the perimeter of the proposed 9.4m deep excavation. Bored piles extended down 4m from the ground surface.

The residential building was essentially enclosed as an island within the site during top down construction, with much of the perimeter retaining wall supported by the uppermost basement floor slab and through which spoil from the excavation had to be removed. On the far side from the 'island building', HBM was able to install a single row of temporary ground anchors creating much needed space for the excavation.

PROJECT DETAILS Bored piles: 39, 1m diameter Diaphragm wall: 2,400m 2, up to 12m deep Jet grouting: 276m of 'jet piles' Ground anchors: 32, 21m long, 100t capacity 2,740m 2supporting slab 33,000m 3bulk excavation 2,400m 3concrete raft Two 12m deep pressure relief wells

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.