PHYSICO-CHEMICAL THEORY OF EFFECTIVE STRESS IN SOILS

V. I. Osipov

Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskii per. 13, bid.2, Moscow, 101000 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The paper presents a new theory of effective stresses in soils. Unlike the well-known K. Terzaghi's theory, it considers soil as a structured system with operating external and internal stresses of gravitational and physico-chemical origin. Stresses calculated with the consideration of both external and internal forces correspond to the actual effective stresses existing in a structured porous body. The article characterizes both groups of stresses and provides the equations for calculating total actual effective stresses in soils.

Key words: effective stress, actual effective stress, pore pressure, contact interaction, coagulational transitional and phase contacts, wedging forces of hydrate films, capillary pressure, open and closed porous systems.

BASIS OF MONITORING SYSTEM ARRANGEMENT IN KARST-PRONE TERRITORIES (BY THE EXAMPLE OF PERM REGION)

V. N. Kataev

Perm State University, ul. Bukireva 15, Perm, 614990 Russia.
E-mail: kataev@psu. ru

Development of karst monitoring system in any specific territory appears to be a challenge. The monitoring system demands working out a preliminary decision and solving organizational and information problems. The paper presents the blocks of measures constituting the basis of karst monitoring system; which have been implemented for the most part in Perm region. Some of these measures are planned for the future.

Key words: karst phenomena, karst hazard, forecast, karst monitoring.

SUBSTANTIATION OF MANAGING DECISIONS FOR MINIMIZING RISK OF GROUND WATER CONTAMINATION AT THE SITES OF MUNICIPAL SOLID WASTE DISPOSAL

I.V. Galitskaya, V.S. Putilina, T.I. Yuganova

Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences
Ulansky per. 13, bid. 2, Moscow, 101000 Russia.
E-mail: galgeoenv@mail. ru

A new approach to the estimation of processes developing at the sites of municipal solid waste (MSW) disposal is suggested based on the present-day ideas about the organic matter transformation in a waste body during the entire «life cycle» of landfill. The choice of managing decisions for reclamation of MSW areas and for reducing risk of groundwater contamination is substantiated. The decisions depend on the results of prediction assessment and MSW impact on the environment.

Key words: municipal solid waste, landfill, groundwater contamination, reclamation, managing decisions.

ANTHROPOGENIC CHANGES OF PERMAFROST IN THE EUROPEAN NORTH AND THEIR CONSEQUENCES

S. A. Iglovsky

Institute of Ecological Problems of the North, Russian Academy of Sciences, Ural division,
nab. Severnoy Dviny 23, Arkhangelsk, 163006 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The anthropogenic changes of permafrost are studied at the key sites in the European North, i.e., Koida settlement (Mezenskaya tundra), Nes settlement (Kanin peninsula), Shoina settlement (Kanin peninsula), Mezen settlement, lakes Vashutkini (Bol'shezemel'skaya tundra), Amderma (Yugorsky peninsula), and the northern part of the Vaigach island. Geocryological characteristics of sites are provided, and the main types of anthropogenic changes in permafrost conditions are described.

Key words: anthropogenic changes, permafrost conditions, Dvinsko-Mezenskaya plain, Kanin peninsula, Vashutkini lakes (Bol'shezemel'skaya tundra), Amderma (Yugorsky peninsula), Vaigach island, cryogenic processes.

COMPARATIVE CHARACTERISTIC OF BURIED SOIL SUBSIDENCE IN CYCLIC LOESS SEQUENCES OF EAST EUROPIAN AND CENTRAL ASIAN REGIONS, THE NORTHERN EURASIA

V.T. Trofimov, S.D. Balykova, T.V. Andreeva, A.V. Ershova

Geological Faculty, Moscow State University, Leninskie gory 1, Moscow, 199991 Russia.
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The buried soils in cyclic loess sequences of the East European and Central Asian regions are characterized. Subsidence correlation with depth, natural moisture, and porosity of buried soils is revealed. Correlation between the relative subsidence of buried soils and that of underlying and overlying loess horizons, as well as subsidence alteration by the buried soil profile is analyzed.

Key words: loess soils, key loess section, cyclite, buried soil, subsidence.

MATHEMATICAL MODEL OF MASS TRANSPORT IN AGREGATED POROUS MEDIA

M.G. Khramchenkov, R.P. Fedorin

Kazan Federal university, ul. prof. Nuzhina 1/37, Kazan, 420008 Russia.
E-mail: Maxim.Khramchenkov@ksu. ru

The article is devoted to the generation of physical-chemical model of double porosity in clayey soil. The main equations of physical-chemical double porosity mechanics are obtained. The comparison is presented and good agreement is proved between numerical simulation and experimental data.

Keywords: double porosity media, mass transport, filtration, pressure, concentration, hydro-dispersion, clay deformation.

PROBLEMS IN GEOENVIRONMENTAL ASSESSMENT OF GROUND WATER CONDITION OF THE EOCENE-QUATERNARY AQUIFER IN THE YAMAL-NENETS AUTONOMOUS OKRUG IN CONNECTION WITH THE DEVELOPMENT OF HYDROCARBON DEPOSITS

A.A. Yastrebov, Yu.A. Mamaev

Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskii per. 13, bid. 2, Moscow, 101000 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The paper shows that the regional regularities of spatial variability in geocryological conditions in the Yamal-Nenetz autonomous okrug, the permafrost massif structure, cryogenic processes and related hummocky-depressional relief, in particular, control the areal trend in runoff parameters of Eocene-Quaternary aquifer as well as pollutant migration within the region. Assessment of geosystem resistance to technogenic impact with the account of global climate warming and degrading permafrost should be based on water-balance calculation taking into consideration the depth and capacity parameters of water bodies.

Key words: environmental geoscience, cryolithozone, groundwater condition, geohazards.