Abstract
The paper presents the results of scientific research and engineering calculations of rational designs parameters of airfield cover for cold regions of Russia using airstrip in Yuzhno-Sakhalinsk airport as the example. This airport is located in severe climatic and complex engineering-geological conditions. A deep seasonal freezing occurs everywhere. Applying extruded polystyrene plates in the structure construction makes it possible to significantly reduce frost heave and reduce foundation deformation. Performing numerical modeling of structures using «FEM models» geotechnical software complex allowed to quantify the processes of freezing and thawing in the annual cycle for the construction conditions. Based on the research results, designed constructive measures to ensure the operational reliability of the proposed rational engineering solutions for airstrips in the northern territories of the Russian Far East.
Highlights
Development is a solution range of engineering, scientific and settlement-applied tasks
The work purpose is to obtain a rational design of an airstrip cover using modern technologies and advanced materials provides the required parameters for bearing capacity and operational reliability in complex engineering-geological and severe climatic conditions in the northern territories of Russia [1,2]
Solving thermophysical problems for rational design in predetermined operating conditions, a mathematical model «Termoground» was used to numerical simulation of freezing, frost heave and thawing processes in the annual cycle [5,6]
Summary
Development is a solution range of engineering, scientific and settlement-applied tasks. Experimental research were conducted in the experimental section equipped with temperature sensors installed in the test sections at various depths of freezing under normal conditions and using extruded polystyrene foam. Development Conducted over the past two years research course data showed a stabilization of the temperature regime in the area of using extruded polystyrene plates. Experimental To confirm the experimental research requires a joint evaluation of thermal and stress-strain state of soil in the freezing-thawing process. In achieving the goals and tasks performed geotechnical numerical simulation of the stress-strain state under the loads and thermodynamic processes during freezing-thawing in an annual cycle for designs options of airfield landing strips foundation
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