In:
Bautechnik, Wiley, Vol. 97, No. 12 ( 2020-12), p. 878-885
Abstract:
Excavation pit and foundation of a research center During planning and construction of the excavation pit and foundation of the new research center of Roche in Basel (Switzerland), several challenges have been solved by applying automated procedures and digital methods in civil engineering. The project is located in an urban area on the periphery of the industrial and research site of Roche with sensitive neighbouring buildings. Above ground, the research center consists of four buildings with heights increasing from west to east between 18 and 115 m. These four buildings share a 140 m long, 70 m wide and 22 m deep six‐storey basement. At site, a diaphragm wall was constructed in the 1970s for an excavation pit with the same dimensions. This 45‐year‐old diaphragm wall has been reactivated as excavation pit support for cost‐ and time‐saving reasons and the existing basement had to be replaced by a new one. The existing diaphragm wall was secured with up to five anchor layers to withstand the earth pressure and the 12 m high water pressure in the highly permeable subsoil. The foundation was designed as a combined piled raft foundation (CPRF) with a 1.5 m thick raft and 178 heavy‐duty bored piles. The heavy‐duty bored piles with a diameter of 120 cm and lengths of 10 to 28 m were constructed 12 m below groundwater level from the bottom of the excavation pit. By automating the CPRF iteration procedure the planning expenses and the construction costs were significantly reduced.
Type of Medium:
Online Resource
ISSN:
0932-8351
,
1437-0999
DOI:
10.1002/bate.202000062
Language:
German
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2151238-3
detail.hit.zdb_id:
240073-X
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