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The application of screw displacement piles (SDP) is still increasing due to their high efficiency and many advantages. However, one technological problem is a serious disadvantage of those piles. It relates to the generation of very high soil resistance during screw auger penetration, especially when piles are installed in non-cohesive soils. In many situations this problem causes difficulties in creating piles of designed length and diameter. It is necessary to find a proper method for prediction of soil resistance during screw pile installation. The analysis of screw resistances based on model and field tests is presented in the paper. The investigations were carried out as part of research project, financed by the Polish Ministry of Science and Higher Education. As a result of tests and analyses the empirical method for prediction of rotation resistance (torque) during screw auger penetration in non-cohesive subsoil based on CPT is proposed.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
49--56
Opis fizyczny
Bibliogr. 10 poz., rys.
Twórcy
autor
- Gdansk University of Technology, Department of Geotechnics, Geology and Maritime Engineering, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland
Bibliografia
- [1] BUSTAMANTE M., GIANESELLI L., Design of auger displacement piles from in situ tests, Proceedings of International Geotechnical Seminar on Deep Foundations on Bored and Auger Piles, BAP II, Balkema, Rotterdam 1993, pp. 21–34.
- [2] BUSTAMANTE M., GIANESELLI L., Installation parameters and capacity of screwed piles, Proceedings of International Geotechnical Seminar on Deep Foundations on Bored and Auger Piles, BAP III, Balkema, Rotterdam 1998, pp. 95–108.
- [3] KRASIŃSKI A., Model tests of screwed piles, Proc. of the XIV Danube-European Conf. on Geotechnical Engineering, Bratislava, Slovak Republic, June 2–4, 2010, 237+CD.
- [4] KRASIŃSKI A., Field tests of screw displacement piles and columns SDP and SDC, Drogi i Mosty, 2011a, No. 1–2, pp. 21–58 (in Polish).
- [5] KRASIŃSKI A., Results of field tests of screw displacement pile and columns, Inżynieria Morska i Geotechnika, 2011b, No. 6, pp. 510–530 (in Polish).
- [6] KRASIŃSKI A., Bearing capacity and interaction with soil of screw displacement piles, Final report of research project No. N N506 432936 for the Polish Ministry of Science and Higher Education, Gdansk (in Polish, not published), 2011c.
- [7] KRASIŃSKI A., Proposal for calculating the bearing capacity of screw displacement piles in non-cohesive soils based on CPT results, Studia Geotechnica et Mechanica, 2012, Vol. XXXIV, No. 4, pp. 41–51.
- [8] MAERTENS J., HUYBRECHTS N., Belgian screw pile technology. Design and recent developments, Swets & Zeitlinger B.V., Lisse, The Netherlands, 2003, p. 372.
- [9] NESMITH W.M., Static capacity analysis of augered, pressure- injected displacement piles, Proc. of the Int. Deep Foundation Congress 2002, Geotechnical Special Publication, 2002, No. 116, Vol. 2, ASCE, pp. 1174–1186.
- [10] NESMITH W.M., Installation effort as an indicator of displacement screw pile capacity, Deep Foundation on Bored and Auger Piles, BAP IV, Van Impe (ed.), Millpress, Rotterdam 2003, pp. 177–181.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-763f2e20-6889-4de7-aeaa-1ffcccb9e52b