THE ZENER RHEOLOGICAL VISCOELASTIC MODELLING OF THE DYNAMIC COMPACTION OF THE ECOLOGICALLY STABILIZED SOILS

Cornelia-Florentina DOBRESCU

Abstract


This paper treats the concept of Zener linear viscoelastic modulus applied in the vibration compaction process of the soils stabilized with ecological liquid substances brought into atomization state at significant pressures and flows. In this case, by treating soils with ecological stabilizers in the process of milling, mixing and making the road layers, a suitable mixture is obtained for road layers with superior performance to the natural soil. The dynamic compaction effect with vibrating roller cylinders is determined by the stiffness of the land and the structural damping influenced dynamically by the excitation frequency and by the parametric inertial values in static mode. Thus, taking into account experimental results obtained in the laboratory and "in situ", this research highlights the behavior of soil stabilized according to the Zener model. Thus, the parametric values of the model as well as their variation are determined according to the excitation angular frequency are determined for several experimental cases obtained in the testing area.


Keywords: Zener rheological viscoelastic modelling; dynamic compaction; stabilized soils


Full Text:

PDF

References


Adam, D., Kopf, F., Theoretical analysis of dynamically loaded soils, European Workshop: Compaction of soils and granular materials, ETC11 of ISSMGE, Paris, France, 2000;

Adam, D., Kopf, F., Operational Devices for Compaction Optimization and Quality

Bejan, S., Analiza performanței procesului de compactare dinamică prin vibrații pentru structuri rutiere, PhD thesis, “Dunarea de Jos’’ University of Galati, 2015;

Bratu, P., The behavior of nonlinear viscoelastic systems subjected to harmonic dynamic excitation, The 9th International Congress on Sound and Vibration, University of Central Florida Orlando, Florida, 8 – 11 July, 2002;

Bratu, P., Dynamic response of nonlinear systems under stationary harmonic excitation, Non-linear acoustics and vibration, 11th International Congress on Sound and Vibration, 2767-2770, St. Petersburg, 5 - 8 July, 2004;

Bratu, P., Dynamic analysis in case of compaction vibrating rollers intended for road works, The 17tg International Congress on Sound& Vibration, ICSV, Cairo, 18-22 July, 2010;

Bratu, P., Debeleac, C., The analysis of vibratory roller motion, Proceedings of the VII International Triennial Conference Heavy Machinery – HM 2011, Session Earth-moving and transportation machinery, Vrnjačka Banja, Serbia, 29 June -2 July, pp.23-26, ISBN 978-86-82631-58-3, 2011;

Dobrescu C. F., Braguța E., - Optimization of Vibro-Compaction Technological Process Considering Rheological Properties, Proceedings of the 14th AVMS Conference, Timisoara, Romania, May 25–26, Springer Proceedings in Physics198, Nicolae Herisanu Vasile Marinca Editors, pp 287-293, ISSN 0930-8989 ISSN 1867-4941 (electronic) Springer Proceedings in Physics ISBN 978-3-319-69822-9 ISBN 978-3-319-69823-6 (eBook) https://doi.org/10.1007/978-3-319-69823-6, 2017;

Dobrescu C.F), Study concerning bearing assessment of natural and stabilized soils using binders with ecological benefits based on parametric correlations, Romanian Journal of Materials 2017, 47 (1), 112 -116 (Factor de impact 0,612), 2017

Dobrescu C. F., Braguța E., ”Dynamic modeling of vibro-compaction process on cohesionless granular soils” Acoustics and Vibration of Mechanical Structures“ May 25- 26, 2017 - Timișoara, Romania;

Leopa, A., Debeleac, C., Năstac, S., Simulation of Vibration Effects on Ground Produced by Technological Equipments, 12th International Multidisciplinary Scientific GeoConference SGEM2012, Conference Proceedings, Vol. 5, Vol. 5, pp. 743-750, ISSN 1314-2704, 2012;

Leopa, A., Năstac, S., Debeleac, C., Căpăţână, G.F., Potirniche, A., Identification of parameters characterizing the nonlinear behavior of viscous-elastic systems on dynamic loadings, The 8th International DAAAM Baltic Conference "Industrial Engineering “, April 19-21, Tallinn, Estonia, 2012;

Mooney, M.A., Rinehart, R.V. Field Monitoring of Roller Vibration During Compaction of Subgrade Soil, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 133, No. 3, pp. 257–265, 2007;

Mooney, M.A., Rinehart, R.V., In-Situ Soil Response to Vibratory Loading and Its Relationship to Roller-Measured Soil Stiffness, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 135, No. 8, pp. 1022–1031, 2009;

Pințoi R., Bordos R., Braguța E., - Vibration Effects in the Process of Dynamic Compaction of Fresh Concrete and Stabilized Earth, Journal of Vibration Engineering & Technologies –Volume 5, December 2017, ISSN 2321-3558.


Refbacks

  • There are currently no refbacks.


JOURNAL INDEXED IN :