The paper deals with assessment of impact freezing-thawing process on slope stability. Numerical simulation using coupled thermal–hydraulic–mechanical analysis (software “Geostudio 2012”, Canada) was implemented to make accurate time-dependent forecast safety factor and defined probable failure mechanism earth structures in cold climate. Results modelling showed value decreased from 2.15 1.13 when structure's is thawing. Significant increase hydraulic gradient (from 0.1 14) observed the toe dam.

The capacity of electric air conditioning and heating systems is growing rapidly, as the nameplate PV power plants. While demand for cooling has a positive correlation with solar irradiance, an opposite relation. In this study, different approaches to design (aggregation; thermal, battery, implicit storage) control (frequency conversion; variable adaptive load) their effects on efficiency off-grid active thermal stabilisation system based solar-powered heat pump are analysed. case considered...

: Electric air conditioning and heating systems capacity is growing rapidly. So does the nameplate of PV power plants. While demand in cooling has a positive correlation with solar irradiationirradiance, an opposite relation. In this study, different approaches to design (aggregation; energy storagethermal, battery implicit storage) control (frequency conversion; variable adaptive load) their effects on efficiency off-grid active thermal stabilisation system based solar-powered heat pump are...

Ice cellars are a traditional way of long-term storage meat and fish near the places their commercial production in Arctic during warm season. Due to degradation permafrost, these structures state disrepair everywhere. Using example Chukchi national village Lorino, where hunting sea animals is preserved, we have considered options for solving problem preserving caught meat. Economic assessments show that use permafrost facility reasonable storing more than 100 tons products; smaller volumes,...

Abstract In a cold climate design of dams, clay barrier liners on landfills, and structures frost-susceptible soils is challenge for geotechnical engineers. During service life the frost heave may reach 15-20% depth penetration an uplift movement are accompanied by formation layered or lattice cryogenic texture. When thawing, macro- micropores formed instead ice lenses. Basically pores oriented predominantly along front. They reason horizontal water permeability increase, consequently,...

It is hard to overestimate the role of winter roads in land logistics northern regions. In recent years, climate change has not only significantly reduced service life roads, but also made them less predictable. This forces transportation increase intensity, often at expense safety, or stop that suddenly, leaving vehicles and equipment unused for long periods disrupting project deadlines. Therefore, extending reducing dependence on local weather conditions a very urgent task. To solve it, we...

Assessment of frost susceptibility clay soils is challenge for civil and road engineering.Inaccurate classification can result to damage roads, pipelines building foundations.The most reliable way get valid value heave deformations measure it in in-situ.The article deals with results in-situ measurements penetration via automatic monitoring system.The main idea the system temperature layered at same time.Due embedded magnetic marks sensors probes are defined as a function changing field.The...

2 Российский государственный гидрометеорологический университет 3 г.Обнинск Рассматривается оценка экономической полезности информационной деятельности гидро метео ро

The impact of the freezing-thawing process on soils, accompanied by frost heaving and changes physico-mechanical properties water permeability, leads to a decrease in reliability designed structures such as dams, landfill caps, pavements. existing apparatuses for study are systematized according their purpose (measured parameters), design features experimental conditions. authors pointed out directions improving laboratory equipment presented developed innovative studying both heave its...

The article presents the results of analysis rheology properties sandy-clay tailings (wastes) kimberlite ore dressing diamond deposit (Russia, Arkhangelsk region). coefficient secondary compression as main parameter soil's creep is defined by implementing standard one-dimensional consolidation test. linear correlation between initial void ratio and were obtained. For numerical simulation tailing's behaviour subject to its in Soft Soil Creep (SSC) model (time independent behaviour) PLAXIS...

In areas of the European North with a low population density and poorly developed transport infrastructure, it is difficult to organize waste removal storage at large landfills, therefore many settlements have small landfills municipal solid (MSW), practice placing them in swamps very common, which leads migration pollutants into adjacent rivers. Environmental monitoring nearby such hampered by high costs periodic water sampling chemical composition analyses. It possible decrease number...

Abstract European North with a low population density and poorly developed transport infrastructure, it is difficult to organize waste removal storage at large landfills, therefore many settlements have small landfills of municipal solid (MSW), the practice placing them in marshes very common, which leads migration pollutants into adjacent water bodies. Systematic monitoring environmental vicinity such hampered by high costs periodic sampling chemical composition analyses. It possible...

Abstract Frost heaving is a challenge for geotechnical engineers in cold climate. heave depends on two factors: the freezing rate and velocity of water migration from unfrozen to frozen soil. The article deals with existing apparatus exploring frost which are systematized according their purpose (measured parameters), design features experimental conditions. authors proposed ways improving laboratory equipment presented newly developed studying both its consequences. presents apparatuses...

Abstract Shallow foundations with thermal insulation can be used in the construction of low-rise buildings. Thermal prevents freezing soils under foundation. The article presents results determining conductivity sand addition crushed brick and concrete rubble. research was carried out a specially designed unit, which consists two climatic chambers connected to each other. soil sample is maintained into special cell. Heat flow temperature sensors are placed sample. Before testing numerical...