Ocena nośności pali CFA z podstawą poszerzoną metodą iniekcji strumieniowej

Leszek Rafalski; Czesław Szymankiewicz; Daniel Słowikowski; Dariusz Petyniak

doi:10.7409/rabdim.021.015

Published: 2021-09-29

Vol. 20 No. 3 (2021)

Evaluation of bearing capacity of CFA piles with bases widened by means of jet grouting

Leszek Rafalski , Czesław Szymankiewicz , Daniel Słowikowski , Dariusz Petyniak

Section: Articles

https://doi.org/10.7409/rabdim.021.015

Abstract

The paper presents the results of tests of continuous flight auger (CFA) piles with bases widened by means of jet grouting. During construction of bridge structures of the S8 expressway at the Salomea interchange in Warsaw, an experimental CFA pile with a widened jet grouted base was constructed and its ultimate bearing capacity was 1.5 times greater than the bearing capacity of the reference pile, and its allowable load was 1.65 times greater than the allowable load of the reference pile. It was observed that the full base resistance of this pile was mobilized at displacements corresponding to approximately 0.1 of the diameter of the pile. During construction of bridge structures of the S8 expressway on the bypass of Marki, load tests were performed on 17 CFA piles with widened jet grouted bases. It was determined that the average design value of bearing capacity of the piles was 1.23 greater than the average design value of loading specified in the design documentation and the average ultimate bearing capacity was 1.78 greater than the average design load. The average ratio of design bearing capacity determined from the load test equaled 1.23 and the average ratio of the ultimate bearing capacity equaled 1.89. Based on the experimental trials, the principles for calculation of bearing capacity of CFA piles with widened jet grouted bases were formulated.

Keywords:

bearing capacity, CFA piles, jet grouting, widened base.

Most read articles by the same author(s)

Marcin Dreger, Mieczysław Przygoda, Cezary Kraszewski, Michał Mitrut, Leszek Rafalski, Mariusz Wojdal, Bentonite-loess slurry for construction of diaphragm walls and bored piles , Roads and Bridges - Drogi i Mosty: Vol. 19 No. 2 (2020)
Cezary Kraszewski, Leszek Rafalski, Michał Ćwiąkała, Marcin Dreger, Effect of applied stress increments of the secondary deformation modulus and the ratio between the secondary and primary moduli of sandy gravel and crushed aggregate in static plate load tests , Roads and Bridges - Drogi i Mosty: Vol. 19 No. 4 (2020)
Michał Ćwiąkała, Joanna Korzeniowska, Cezary Kraszewski, Leszek Rafalski, Testing the concentration of trace metals in soils near roads with varied traffic intensity , Roads and Bridges - Drogi i Mosty: Vol. 18 No. 2 (2019)
Mirosław Graczyk, Józef Rafa, Leszek Rafalski, Adam Zofka, New analytical solution of flow and heat refraction problem in multilayer pavement , Roads and Bridges - Drogi i Mosty: Vol. 13 No. 1 (2014)
Michał Ćwiąkała, Beata Gajewska, Cezary Kraszewski, Leszek Rafalski, Recapitulation of research on frost susceptibility of unbound mixtures for pavement structures , Roads and Bridges - Drogi i Mosty: Vol. 15 No. 4 (2016)
Beata Gajewska, Marcin Gajewski, Cezary Kraszewski, Leszek Rafalski, Investigations of resilient moduli of selected hydraulically bound mixtures (HBM) under cyclic load , Roads and Bridges - Drogi i Mosty: Vol. 11 No. 4 (2012)
Tomasz Kula, Leszek Rafalski, Identification of the number of overloaded vehicles on the basis of data from chosen weigh-in-motion preselection stations , Roads and Bridges - Drogi i Mosty: Vol. 20 No. 3 (2021)

Download files

PDF

Citation rules

Rafalski, L., Szymankiewicz, C., Słowikowski, D., & Petyniak, D. (2021). Evaluation of bearing capacity of CFA piles with bases widened by means of jet grouting. Roads and Bridges - Drogi I Mosty, 20(3), 253–265. https://doi.org/10.7409/rabdim.021.015

Cited by / Share

References

Gwizdała K.: Fundamenty palowe. Technologie i obliczenia. Tom 1. Wydawnictwo Naukowe PWN, Warszawa, 2010
Google Scholar

Gwizdała K.: Współczesne technologie pali. Seminarium - Zagadnienia posadowień na fundamentach palowych, Gdańsk, 2004
Google Scholar

Kłosiński B., Szymankiewicz Cz.: Wpływ iniekcyjnego naprężania podstaw pali na ich nośność. Inżynieria i Budownictwo, 57, 12, 2001, 702-706
Google Scholar

Patent PL 202253: Sposób zwiększania nośności fundamentów głębokich. Uprawniony – Instytut Badawczy Dróg i Mostów, rok uzyskania prawa 2008
Google Scholar

Fontanella E., Callisto L., Desideri A.: An interpretation of jet grouting effects on the retaining structures of a deep excavation and on adjacent buildings. Proceedings of Conference “Geotechnical Aspects of Underground Construction in Soft Ground”, Roma, May 2011, Taylor and Francis Group, London, 2012, 941-948, DOI: 10.1201/b12748-124
Google Scholar

Shen S.L., Wang Z.F., Hopribulsuk S., Kim Y.H.: Jet grouting with a newly developed technology: The Twin-Jet method. Engineering Geology, 152, 1, 2013, 87-95, DOI: 10.1016/j.enggeo.2012.10.018
Google Scholar

Njock P.G. A., Chen J., Modoni G.: A review of jet grouting practice and development. Arabian Journal of Geosciences, 11, 16, 2018, article no. 459, DOI: 10.1007/s12517-018-3809-7
Google Scholar

Szymankiewicz Cz.: Poszerzanie podstaw pali metodą iniekcji strumieniowej. Inżynieria i Budownictowo, 69, 3, 2013, 115-120
Google Scholar

Słowikowski D., Bartoszek Z., Szymankiewicz Cz.: Pale z iniekcyjnie poszerzaną podstawą (pale IS). Geoinżynieria: drogi, mosty, tunele, 59, 2, 2017, 50-52
Google Scholar

Patent PL 226652: Sposób zwiększania nośności fundamentów głębokich oraz urządzenie do zwiększania nośności fundamentów głębokich. Uprawnieni – Instytut Badawczy Dróg i Mostów oraz Polbud-Pomorze Sp. z o.o., rok uzyskania prawa 2017
Google Scholar

PN-83/B-02482:1983 Fundamenty budowlane. Nośność pali i fundamentów palowych
Google Scholar

PN-EN 1997-1:2008 Eurokod 7 – Projektowanie geotechniczne – Część 1: Zasady ogólne
Google Scholar

Bzówka J.: Współpraca kolumn wykonywanych techniką iniekcji strumieniowej z podłożem gruntowym. Wydawnictwo Politechniki Śląskiej, Gliwice, 2009
Google Scholar

Leszek Rafalski

lrafalski@ibdim.edu.pl

Affiliation:

Road and Bridge Research Institute, 1 Instytutowa St., 03-302 Warsaw

Czesław Szymankiewicz

Affiliation:

Road and Bridge Research Institute, 1 Instytutowa St., 03-302 Warsaw

Daniel Słowikowski

Affiliation:

"Polbud-Pomorze" Limited Liability Company., Łącko 18, 88-170 Pakość

Dariusz Petyniak

Affiliation:

Road and Bridge Research Institute, 1 Instytutowa St., 03-302 Warsaw

Evaluation of bearing capacity of CFA piles with bases widened by means of jet grouting

Abstract

Keywords:

Similar Articles

Most read articles by the same author(s)

Downloads

Leszek Rafalski

Czesław Szymankiewicz

Daniel Słowikowski

Dariusz Petyniak