Influence of the time after construction on static load testing of pre-cast driven-in piles

• Autorzy: Rybak J.
• Konferencja: Proceedings of the 14th French-Polish Colloguium "Soli and Rock Mechanics. soil Mechanics - Geomaterials" Grenoble, August 29-31, 2007
• Języki publikacji: EN

Abstrakty

EN

After the foundation piles have been installed in the ground, the increase of their load capacity may be observed. It occurs due to the dissipation of groundwater pore pressures (reconsolidation of the soil) and the reestablishment of internal bindings around the pile. Hence, the standards and regulations recommend that the pile load capacity tests should be carried out from several days to several dozen days after the piles have been constructed. The article presents the results of capacity tests performed before the standard-conditioned time limit, with reference to the soil types. The subject has been exemplified on the basis of foundation work during making several roads in Poland since 2004.

Słowa kluczowe

EN

reconsolidation of the soil; capacity tests; standard-conditioned time

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2008
• Tom: Vol. 30, nr 1-2
• Strony: 181--188
• Opis fizyczny: bibliogr. 7 poz.,

Twórcy

autor

Rybak J.

• Institute of Geotechnics and Hydroengineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

• [1] BRZOZOWSKI T., BLOCKUS M., Pile dynamic testing. Seminar: Pile foundation design (in Polish), Gdańsk University of Technology, 2004, 25.06.2004.
• [2] HOLEYMAN A.E., Pile monitoring, testing and data processing. Piling and Deep Foundations, Conference Proceedings, DFI EFFC, Amsterdam, 2006, 86–100.
• [3] JARDINE R.J., STANDING J.R., CHOW F.C., Some observations of the effect of time on the capacity of piles driven in sand, Géotechnique, 2006, Vol. LVI, No. 4.
• [4] KÖNIG F., GRABE J., Time dependent increase of the bearing capacity of displacement piles. Piling and Deep Foundations, Conference Proceedings, DFI EFFC, Amsterdam, 2006, 709–717.
• [5] SKOV R., DENVER H., Time dependence of bearing capacity of piles, Proc. Third International Conference on the Application of Stress-Wave Theory to Piles, Ottawa, 25–27 May, 1988, 879–888.
• [6] SVINKIN M.R., SKOV R., Set-up effect of cohesive soils in pile capacity, 2005, http://www.vulcanhammer.net/svinkin/set.php
• [7] PN-83/B-02482 Foundations. Bearing capacity of piles and pile foundations.