Increasing the Accuracy in Determining the Basis Foundation Compressibility

  • Authors

    • Nataliia Kostochka
    • Iryna Miroshnychenko
    • Oleksandr Nalyvayko
    2018-06-20
    https://doi.org/10.14419/ijet.v7i3.2.14404
  • compression device, soil porosity coefficient, soil deformation modulus, soil compressibility index, compressibility, soil base, settlement, reliability.
  • The disadvantages of the standard soil deformation characteristics are analyzed. Impact of different factors on the determination accuracy of soil characteristics is estimated. Devices to determine soil deformation parameters in the conditions of one axial compression aimed at increase in reliability of the soil compressibility evaluation results are improved; the mentioned improving eliminate disadvantages of the compression device that is absence of the soil sample lateral expansion and friction with ring walls decreasing the soil sample lateral expansion and reduces real soil compressibility. Results of the soil tests in the standard and improving device are compared with each other. Soil compressibility index is based. Such index represents the relative change in the soil sample porosity coefficient during the compression tests. There is increase in prediction accuracy of the building soil foundations settlements. To increase prediction accuracy soil compressibility index and account of the influence of pressure on the soil deformation parameters and soil porosity changing from the compressible thickness depth are used. Statistical analyze of the random variables of the soil base settlements, which are predicted by the both methodic are made.

     

     

  • References

    1. [1] EN 1997-2:2007. Eurocode 7: Geotechnical Design. Ground investigation and testing. European Committee for Standardization, Brussels. – 2007. – 202 p.

      [2] DBN V.2.1-10-2009. Osnovy ta fundamenty budivel i sporud. Osnovni polozgennia proektuvannia – K.: Minregionbud Ukrainy. – 2009. – 107 s.

      [3] Spravochnik heotekhnika. Osnovaniia, fundamenty i podzemnye sooruzheniia / Pod red. V.A. Ilicheva i R.Ð. Mangusheva. – Ðœ.: Izd-vo ÐСВ, 2014. – 728 s.

      [4] Boldyrev, G.G. Metody opredeleniia mekhanicheskih svoistv hruntov. Sostoianie voprosa: monohrafiia / G.G. Boldyrev. – Penza: PGUAS, 2008. – 696 s.

      [5] Tsytovych N.Ð. Mekhanika hruntov: Kratkii kurs / N.Ð. Tsytovych. – Ðœ.: Knyzhnii dom «LYBROKOM», 2009. – 272 s.

      [6] Braja, M. Das Shallow foundations. Bearing capacity and settlement / Braja M. Das. – CRC Press. Taylor & Francis Group, 2009. – 327 p.

      [7] Tuhaenko Yu.F. Transformatsiia napriazhenno-deformiruemoho sostoianiia hruntov osnovaniia i ee uchet pri proektirovanii fundamentov: monohrafiia / Yu.F. Tuhaenko. – Odessa: Astroprint, 2011. – 120 s.

      [8] Mechi, J. Geotechnical Engineering Examples and Solutions Using the Cavity Expanding Theory / J. Mechi. – Budapest: Hungarian Geotechnical Sosiety. – 2013. – 221 p.

      [9] Vazquez, M. A simplifed model for collapse using suction controlled tests / M. Vazquez, J. Justo, P. Durand // Proc. of the 18th Intern. Conf. on Soil Mechanics and Geotechnical Engineering. – Paris. – 2013. – P. 1203 – 1206.

      [10]Ovando-Shelley, E. Some Geotechnical Properties to Characterize Mexico City Clay / E. Ovando-Shelley // Extreme Soil Mechanics: The Challenge of dealing with soft soils. – Volume prepared by ISSMGE Technical Committee # 214. – Mexico: Copyright. – 2013. – P. 13 – 31.

      [11]Vynnykov, Yu.L. Problemy vyznachennia modulia deformatsii zamoklykh lesopodibnykh gruntiv / Yu.L. Vynnykov // Zb. nauk. prats (haluzeve mashynobud., bud-vo). Vyp. 3 (28). – Poltava: PNTU, 2010. – S. 62 – 68.

      [12]Vynnykov Yu.L. Matematychne modeliuvannia vzaiemodii fundamentiv z ushchilnenymy osnovamy pry yikh zvedenni ta nastupnii roboti: Monohrafiia / Yu.L. Vynnykov. – Poltava: PoltNTU imeni Yuriia Kondratiuka, 2016. – 280 s.

      [13]Vynnykov, Yu.L. Pidvyshchennia dostovirnosti pokaznykiv styslyvosti osnovy za danymy kompresiinykh vyprobuvan gruntiv / Yu.L. Vynnykov, N.A. Kostochka // Resursoekonomni materialy, konstruktsii, budivli ta sporudy: Zb. nauk. pr. Vyp. 27. – Rivne: NUVHP, 2013. – S. 407 – 414.

      [14]Innovative solutions in the field of geotechnical construction and coastal geotechnical engineering under difficult engineering-geological conditions of Ukraine / M. Zotsenko, Y. Vynnykov, M. Doubrovsky, V. Oganesyan, V. Shokarev, V. Syedin, A.Shapoval, M. Poizner, V. Krysan, G. Meshcheryakov // Proc. of the 18th Intern. Conf. on Soil Mechanics and Geotechnical Engineering. – Paris. – 2013. – Vol. 3. – P. 2645 – 2648.

      [15]Zotsenko N.L. Long-Term Settlement of Buildings Erected on Driven Cast-In-Situ Piles in Loess Soil / N.L. Zotsenko, Y.L. Vinnikov // Soil Mechanics and Foundation Engineering. – July 2016, Vol. 53, Issue 3, P. 189 – 195 (First Online: 31 August 2016. DOI: 10.1007/s11204-016-9384-6. © Springer Science+Business Media New York 2016). http://link.springer.com/article/10.1007/s11204-016-9384-6 (Print ISSN 0038-0741; Online ISSN 1573-9279; Publisher Name Springer US).

      [16]Vynnykov Yu.L. Vyznachennia osidannia osnovy budivel za pokaznykom styskannia gruntu / Yu.L. Vynnykov, N.A. Kostochka, I.V. Miroshnychenko // Mosty ta tuneli: teoriia, doslidzhennia, praktyka: zbirnyk nauk. prats Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu imeni akademika V. Lazariana, 2015, №8. – S. 4 – 13.

  • Downloads

  • How to Cite

    Kostochka, N., Miroshnychenko, I., & Nalyvayko, O. (2018). Increasing the Accuracy in Determining the Basis Foundation Compressibility. International Journal of Engineering & Technology, 7(3.2), 209-214. https://doi.org/10.14419/ijet.v7i3.2.14404