EXPERIMENTAL STUDIES OF THE TECHNOGENIC SOILS OF THE SLUDGE COLLECTOR DAMS IN THE AREA OF THE BAIKAL PULP AND PAPER MILL 

T. G. Ryashchenko^1,*, N. N. Grin’², S. I. Shtel’makh¹, N. N. Ukhova^1,**

¹Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, ul. Lermontova, 128, Irkutsk, 664033 Russia

²Irkutsk National Research Technical University, ul. Lermontova, 83, Irkutsk, 664074 Russia

*E-mail: ryashenk@crsut.irk.ru;
**E-mail: nat-ukhova@crust.irk.ru

The experimental studies of fine technogenic soils of dams surrounding nine lignin collector cells were performed according to the borehole drilling (6–10 m) data with taking samples of disturbed structure and the natural humidity in the area of the Baikal PPM. The particle-size distribution was analyzed in 69 samples by the sieve method in the laboratory of the INRTU. Soil moisture and plasticity indices were determined; and the particle-size distribution was analyzed by the pipette method for 34 samples after the separation of the coarse fractions. Each sample out of 34 was classified as arenaceous sandy loam according to the State Standard classification (GOST) 25100-2011. The comprehensive studies of 25 samples of arenaceous sandy loams were carried out at the Institute of the Earth's Crust, SB RAS. Authors propose to consider the arenaceous sandy loam as a special variety of clayey sands in accordance with the visual signs, the composition and the physical-chemical properties.  By the example of clayey sands, the study has confirmed the usefulness of predictive formulas for calculation of the plasticity index by the liquid limit. The cluster analysis revealed the joint influence of silty and clayey fractions on plasticity.

Keywords: technogenic soils, clayey sands, particle-size distribution, chemical, microelement composition, properties, plasticity, cluster analysis

REFERENCES

1. Brait, O. Problema BTsBK: IRNITU predlagayet ob'yedinit' usiliya [BPPM problem: IRNITU proposes to join efforts]. Argumenty nedeli, 2017, no. 49, pp. 12-13. (in Russian)
2. Vinogradov, A.P. Geokhimiya redkikh i rasseyannykh khimicheskikh elementov v pochvakh [Geochemistry of rare and trace chemical elements in soils]. Moscow, Izd-vo AN SSSR, 1957, 78 p. (in Russian)
3. Geokhimiya okruzhayushchei sredy [Geochemistry of the environment]. Sayet, Yu.E., Revich, B.A., Yanin, E.P., Smirnova, R.S., et al. Moscow, Nedra Publ., 1990, 335 p. (in Russian)
4. Grin', N.N., Lankin, Yu. K., Ryashchenko, T.G. Izuchenie tekhnogennykh gruntov v ramkakh proyekta rekul'tivatsii otkhodov Baikal'skogo TSBK [Study of technogenic soils in the framework of the project for reclamation of waste from the Baikal PPM]. Sergeevskie chteniya. Materialy godichnoi sessii Nauchnogo soveta RAN po problemam geoekologii, inzhenernoi geologii i gidrogeologii. Moscow, RUDN Publ., 2018, vol. 20, pp. 112–117. (in Russian)
5. Zhabrikov, S.Yu., Knat'ko, M.V., Zdobin, D.Yu. Obespechenie geoekologicheskoi bezopasnosti razmeshcheniya otkhodov v granitsakh tsentral'noi ekologicheskoi zony Baikal'skoi prirodnoi territorii [Ensuring geoecological safety of waste disposal within the boundaries of the central ecological zone of the Baikal natural reserve territory]. Sergeevskie chteniya. Materialy godichnoi sessii Nauchnogo soveta RAN po problemam geoekologii, inzhenernoi geologii i gidrogeologii. Moscow, RUDN Publ., 2018, vol. 20, pp.118–122. (in Russian)
6. Kashirskii, V.I. Normativnye dokumenty v usloviyakh perekhoda k samoreguliruemym organizatsiyam [Regulatory documents in the context of the transition to self-regulatory organizations]. Sergeevskie chteniya. Materialy godichnoi sessii Nauchnogo soveta RAN po problemam geoekologii, inzhenernoi geologii i gidrogeologii. Moscow, GEOS Publ., 2010, vol. 12. pp. 30–39. (in Russian)
7. Lomtadze, V.D. Slovar' po inzhenernoi geologii [Dictionary of engineering geology]. St/ Petersburg, SPGI Publ., 1999, 360 p. (in Russian)
8. Lukashev, V.K. Geokhimicheskie indikatory protsessov gipergeneza i osadkoobrazovaniya [Geochemical indicators of the processes of hypergenesis and sedimentation]. Minsk, Nauka i tekhnika Publ., 1972, 320 p. (in Russian)
9. Poryadin, A.F., Khovanskii, A.D. Otsenka i regulirovanie kachestva okruzhayushchei prirodnoi sredy [Assessment and regulation of the quality of the natural environment]. Moscow, Priboi Publ., 1996, 350 p. (in Russian)
10. Ryashchenko, T.G. Regional'noe gruntovedenie (Vostochnaya Sibir') [Regional soil science (Eastern Siberia). Irkutsk, Institut zemnoi kory SO RAN, 2010, 287 p. (in Russian)
11. Ryashchenko, T.G., Tirskikh, S.A. Opredelenie plastichnosti glinistykh i lyossovykh gruntov: otsenka raschetnogo metoda i rekomendatsii [Determination of plasticity of clay and loess soils: evaluation of the calculation method and recommendations]. Inzhenernye izyskaniya. 2016, no. 8, pp.10–14. (in Russian)
12. Ryashchenko, T.G., Ukhova, N.N. Khimicheskii sostav dispersnykh gruntov: vozmozhnosti i prognozy (Vostochnaya Sibir') [Chemical composition of dispersed soils: possibilities and forecasts (Eastern Siberia)]. Irkutsk, Institut zemnoi kory SO RAN, 2008, 131 p. (in Russian)
13. Khaime, N.M. Russko-angliiskii i anglo-russkii slovar' terminov, ispol'zuemykh pri inzhenerno-geologicheskikh izyskaniyakh dlya stroitel'stva [Russian-English and English-Russian dictionary of terms used in engineering and geological surveys for construction]. Kazan': Astor i Ya Publ., 2016, 96 p. (in Russian)
14. Ryashchenko, T.G., Akulova, V.V., Ukhova, N.N. Processes of loess lithogenesis during the Pleistocene–Holocene. Quaternary International, 2011, vol. 240, pp. 150–155.
15. Zimbardo, M., Ercoli, L., Megna, B. The open metastable structure of a collapsible sand: fabric and bonding. Bulletin Engineering Geology and the Environment, 2016, vol. 75, no. 1, pp. 125-139.