Location
New York, New York
Date
14 Apr 2004, 4:30 pm - 6:30 pm
Abstract
On the Tychy Brewery site a set of 6 tanks of the diameter varying from 5.4 m to 17 m was designed. The tanks are elements of Sewage Treatment Plant. Due to unfavourable soil conditions (plastic clay) the tanks were founded on 15 m long CFA piles with the diameter of 400 and 600 mm. In order to save construction costs piled raft foundation system was proposed. Based on the analysis and respective calculations it was assumed that raft foundations, founded of gravel fill under each tank, would bear up to 20 % to 30% of total load. The assumption allowed shortening of all piles about 3 m minimum. The loading test of 3 piles showed that approximately 80 % of total load is transferred by piles into the subsoil. In order to confirm the assumptions assumed and to measure real settlement of tanks, loading tests of all tanks were carried out by means of its gradual water filling. The comparison of the results of tank settlement measurements and respective calculations showed good agreement between calculated and measured values. The latter did not exceed permissible settlements assumed for this type of constructions and installations. In the paper soil conditions, calculations, solution of tanks foundation, field tests and results obtained are described.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Tejchman, A.; Gwizdała, K.; and Słabek, A., "Investigations of Settlement of Piled Raft Foundation" (2004). International Conference on Case Histories in Geotechnical Engineering. 33.
https://scholarsmine.mst.edu/icchge/5icchge/session01/33
Investigations of Settlement of Piled Raft Foundation
New York, New York
On the Tychy Brewery site a set of 6 tanks of the diameter varying from 5.4 m to 17 m was designed. The tanks are elements of Sewage Treatment Plant. Due to unfavourable soil conditions (plastic clay) the tanks were founded on 15 m long CFA piles with the diameter of 400 and 600 mm. In order to save construction costs piled raft foundation system was proposed. Based on the analysis and respective calculations it was assumed that raft foundations, founded of gravel fill under each tank, would bear up to 20 % to 30% of total load. The assumption allowed shortening of all piles about 3 m minimum. The loading test of 3 piles showed that approximately 80 % of total load is transferred by piles into the subsoil. In order to confirm the assumptions assumed and to measure real settlement of tanks, loading tests of all tanks were carried out by means of its gradual water filling. The comparison of the results of tank settlement measurements and respective calculations showed good agreement between calculated and measured values. The latter did not exceed permissible settlements assumed for this type of constructions and installations. In the paper soil conditions, calculations, solution of tanks foundation, field tests and results obtained are described.
