PARAMETRIC ANALYSIS OF VIBRATING EQUIPMENT FOR THE INSERTION OF PILES INTO THE GROUND
Abstract
Abstract: The paper presents the dynamic model for vibration insertion equipment for piles and grooved piles. For this, several constructive solutions were analysed, so that the dynamic model chosen is representative. As a consequence, the paper comprises the dynamic analysis of the system response to the action of the perturbing force generated by an inertial vibrator with four synchronized eccentric masses in-phase, to ensure a vertical unidirectional dynamic action. Finally, the paper presents the curves of variation of the amplitudes of the masses in the vibrational movement, with the optimal functional regimes.
The dynamic model in the paper was used to analyse the dynamic response for the functional optimization of the vibrodrivers on the sites located along the Danube for the consolidation of the navigation channel bed.
Keywords: dynamic model, vibrations, piles, grooved piles.
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Drucker, D., C., Prager, W., Soil mechanics and plastic analysis or limit design, Quart. Applied Math. Vol. 10 No. 2 pp. 157 – 165, 1952;
Lambe, T. W., Whitman, R. V., Soil mechanics, John Wiley&Sons, 553 pages, 1969.
Mihăilescu, Șt., Bratu, P., Goran V., Vlădeanu A., Masini de constructii [Construction machines] vol. 2 Technical Publishing House, Bucharest, Romania, 1985;
Holtz, R. D., Kovacs, W. D., Sheahan, T.C., An introduction to geotechnical engineering, Prentince Hall, 2010.
Richart, F.E., Hall, J.R., Woods, R.D., Vibrations of soils and foundations, Newmark, N.M., W.J. Hall, 414 pages, 1970.
Bratu, P. , Vibrațiile sistemelor elastic [Vibrations of Elastic Systems], Technical Publishing House, Bucharest 2000.
Polidor Bratu, Adriana Stuparu, Sorin Popa, Ovidiu Voicu, Nicolae Iacob, Gianina Spânu “The Dynamic Isolation Performances analysis of the vibrating equipment with elastic links to a fixed fixed base” – ACTA NAPOCENSIS – Applied Mathematics, mechanics and engineering, vol. 61, no. 1 (2018);
Polidor Bratu “Analysis of the dynamic regime of forced vibrations in the dynamic compacting process with vibrating rollers „ - ACTA NAPOCENSIS – Applied Mathematics, mechanics and engineering, vol. 61, no. 1 (2018).
Dobrescu C. F., Brăguța E. , Optimization of Vibro-Compaction Technological Process Considering Rheological Properties Acoustics and and Vibration of Mechanical Structures AVMS-2017, Proceedings of the 14 AVMS Conference, Timisoara, Romania, ISBN 978-3-319-69822-9, ISSN 0930-8989.
Dobrescu C. F., Brăguța E., Evaluation of strength and deformation parameters of soil based on laboratory tests, Multi-Conference on Systems&Structures (SysStruc 17) from Eftimie Murgu University in Resita November 9th-11th, 2017.
Briaud, J-L., Introduction to Soil Moduli, Geotechnical News, Bitech Publishers Ltd, Richmond, B.C., Canada, 2001
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