Change in the parameters the microstructure of loess soil during filtration


  • K. O. Samoilych Oles Honchar Dnipropetrovsk National University
  • T. P. Mokritskaia Oles Honchar Dnipropetrovsk National University
Keywords: aggregates, microstructure, loess, filtration.

Abstract

Increasing the level of groundwater of permanent and temporary transfer of static and dynamic loads, changing the thermal regime lead to changes in the state of the soil mass, soil properties as a complete water saturation zone and in the zone of aeration. The high vulnerability of structural and textural characteristics of soils in the man-made impact contributes to their the rapid degradation. Degradation of properties and structure of soil is the basis suffusion, subsidence and gravity of natural and industrial disasters and requires further tostudy (Mokritskaya, 2013). The purpose of research is to determine changes in the parameters of the microstructure of loess soils as a result of filtering. The object is aeolian and deluvian loams and sandy selected in the gully Yevpatorian (Dnipro). The subject is the effect of filtering water to change the microstructure of the soil. The results showed that the biggest removal particles of 0.25 — 0.05 mm observed in e PII zv soils, mostly fine particles are made of finely sand fraction, which is kind of addition to the large silty fractions. Revealed that the microstructure parameters aeolian-diluvial deposits filtering virtually no effect, unlike eluvial deposits, which due to larger content of ions Ca2+ (for e PII zv it is 0.6 mmol/100 g soils) capable of greater particle transfer. Perhaps because the aggregate method of preparation reflects changes in the quantity of unstable water aggregates but it they are not took place, filtering water through rock leads to more complex transformations mikrostukture than just the removal of particles in the lower horizons bedding. The restructuring is to ionic levels and that it reflect the standard and dispersed methods of preparation. Therefore, to identify changes in microstructural parameters for filtering technique should be used "microstructure" (Ryaschenko,  2010). As a result of filtering during the period microstructure change did not take place, the observation was carried out to stabilize the rendered particles allows us to consider these results conditionally correct.

Author Biographies

K. O. Samoilych, Oles Honchar Dnipropetrovsk National University
assiastant, Oles Honchar Dnipropetrovsk National UniversityOles Honchar Dnipropetrovsk National University
T. P. Mokritskaia, Oles Honchar Dnipropetrovsk National University
Oles Honchar Dnipropetrovsk National University

References

Abelev Yu., Abelev M., 1979. Osnovi proektyrovanyya y stroytel'stva na prosadochnikh hruntakh. [Basics of designing and constructing on subsiding soils.] M. : Stroyizdat (in Russian).
Ananev, V., Potapov, A., 2005. Inzhenernaya geologiya: Ucheb. dlya stroit. spets. vuzov [Engineering geology : Proc . for the building . specialist. universities] M: Higherwksc (in Russian)
Balandyn, Yu.,, 1984. Fyzyko-mekhanycheskoe sostoyanye lessovikh porod kak kryteryy klassyfytsyrovanyya [Physical and mechanical condition of loess rocks like Crete-ries classification // Classification criteria for dividing the loess in the genus.] M. : Nauka (in Russian).
Bochever, F., Lapshin, N., Orodovskaya, A., 1979. Zashchyta podzemnikh vod ot zahryaznenyya [Protection of groundwater against pollution]. L .: Nedra (in Russian).
Bogachenko, L., Osadcha, L., Prokopenko, T., Sіbul, T., 2015. Monitorynh zemel' ta stanu heolohichnoho seredovyshcha balky yevpatoriys'koyi (Dnipropetrovs'k) [Monіtoring land that will geologіcal environment of the gually Evpatorіyska (Dnipropetrovs'k) Vysnik Dnіpropetrovskogo University. Serіya: Geologіya. Geografіya, 23 (1). 17 – 23 doi: 10.15421-111502 (in Ukrainian).
Goldberg, V., Skvortsov, N., 1986. Pronytsaemost' y fyl'tratsyya v hlynakh [The permeability and filtration in clays] M. : Nedra (in Russian).
Hryhoryan, A., Kulachenok, B., 1965. Polevie yssledovanyya deformatsyy prosadochnoho hrunta pod opitnimy shtampamy [Field studies deformations millet-sedimentary soil under the experimental stamps]. Grounds, foundations and soil mechanics. № 3 (in Russian).
Krieger, N., 1965. Less, eho svoystva y svyaz' s heohrafycheskoy sredoy. [Lesse, its properties and the connection with the geographical environment]. M.: Nauka (in Russian).
Kyryllov, A., 1962. Yssledovanye uplotnyaemosty lessovikh hruntov pry dal'neyshey fyl'tratsyy cherez nykh vodi [Research sealability loess soil at dalneysheyfiltratsii through them water // Engineering geological properties of rocks and methods ihizucheniya]. M. : Publishing House of the USSR Academy of Sciences (in Russian).
Kyryllov, A., 1960. Vlyyanye dlytel'noy fyl'tratsyy na uplotnyaemost' lёssovikh hruntov [Effect of long-term filtration compressibility loess soi] Scientific Notes. T. XXIII / MIIVH them. Williams. M. : Kolos (in Russian).
Levchenko, A., 2011. Otchet o nauchno-yssledovatel'skoy rabote osobennosty vzaymodeystvyya osnovanyy y fundamentov na lessovikh prosadochnikh hruntakh, v uslovyyakh nasishchenyya tekhnolohycheskymy y bitovimy stochnimy vodamy [Report on the research work of the peculiarities of interaction of the foundations on loess subsiding soils, in terms of technological and sanitary sewage saturation.] Innovation SEC "Engineer" (in Russian).
Mokritskaya, T., 2010. K voprosu o modelyakh prostranstvennoho raspredelenyya pokazateley svoystv hruntov horodskykh terrytoryy. [On the question of indicators of patterns of spatial distribution of soil properties in urban areas]. Bulletin DNU. Series: Geology. Geography, t.18, 84 - 91 (in Russian).
Mokritskaya, T., 2013. Formyrovanye y evolyutsyya heolohycheskoy sredi Prydneprovskoho promishlennoho rehyona. [Formation and evolution of geological environment Pridneprovsk industrial region]. Dnipropetrovsk, Accent PP (in Russian).
Osypov, V. Y., 2013. Fyzyko-khymycheskaya teoryya еffektyvnikh napryazhenyy v hruntakh [Physico-chemical theory of effective stress in soils] St. Petersburg Publishing House of the Center for Genetic Soil – № 2. 3 – 35 (in Russian)
Ryaschenko, T., 2010. Regionalnoe Gruntovedenie (Vostochnaya Sibir) [Regional Soil (Eastern Siberia)] Irkutsk: Earth Crust SBRAS (in Russian).
Sadovenko, Y., Derevyahyna, N., 2013. Yssledovanye mekhanyzma formyrovanyya erozyonnikh deformatsyy lessovikh porod [Investigation of the mechanism of formation of erosive deformation of loess rocks] Naukovі pratsі UkrNDMІ National Academy of Sciences of Ukraine, number 13 (Chastina I), Transactions of UkrNDMI NAN Ukraine, № 13 (part I), 2013 p. 339 – 345 (in Russian).
Sherstuk N.P. and all., 2005. Zvit pro naukovo-doslidnu robotu doslidzhennya protsesiv ionnogo obminu ta rozcynennya – osadzhennya v bahatokomponentnih vodno-sol’ovykh systemah v umovah tekhnogenezu. [Report on scientific research studies of ion exchange and dissolution – precipitation in multicomponent water-salt system in technogenesis] DNU, Dnіpropetrvsk (in Ukrainian).
Volokhov, V., 1981. Ratsyonal'nie sposobi uplotnenyya lessovikh hruntov zamachyvanyem [Rational methods of sealing loess soils soak] Hydraulic engineering and reclamation . № 12 (in Russian).
Voronkevych, S.D., 2005. Osnovi tekhnycheskoy melyoratsyy hruntov [Fundamentals of technical reclamation of soils.] M. : Science World (in Russian).
Zaretskyy, Yu., 1967. Teoryya konsolydatsyy hruntov [The theory of soil consolidation.] M. : Nauka, 1967 (in Russian).
Published
2016-12-28
How to Cite
Samoilych, K., & Mokritskaia, T. (2016). Change in the parameters the microstructure of loess soil during filtration. Journal of Geology, Geography and Geoecology, 24(2), 106-113. https://doi.org/https://doi.org/10.15421/111638