Articles published in the issue 02, 2014
SELF-COOLING FOUNDATIONS SYSTEMS ON PERMAFROST
Keywords: permafrost, metal piles, soil freezing, piling, bridges construction, thermal piers, foundations.
Abstract: This article describes self-cooling complex of systems of the foundations for railway construction, the new "hot" method of big diameter (from 1.2 to 2.4m) pile immersing to depth of more than 25m into frozen soil. Also is given the comparison of the effectiveness of deep and surface cooling, and it’s presented the results of the development of complex.
Pilavachi Ilya Nikolaevich — postgraduate student, Junior researcher of OAO CNIIS, e-mail: email@example.com
Dubinin Vladimir Grigorievich — Junior researcher of OAO CNIIS, e-mail: firstname.lastname@example.org
COSTS FORECASTING AND OPTIMIZATION - THE BASIS OF TRACK REPAIRS PLANNING
Keywords: railway track, track repair planning, railway track condition forecasting, maintenance of way optimization, life cycle cost.
Abstract: The article describes the methodology of forecasting of track condition and maintenance-of-way system optimization. Methodology is based on the analysis of databases of automated railway infrastructure control systems.
Track condition forecasting should be based on special mathematic model, considering periods of track stabilization, normal exploitation and degradation.
Maintenance of way system optimization should be based on criterion of minimal Life Cycle Costing, including costs for track laying, mid-life repairs, track maintenance work and additional costs in related railway branches, associated with condition of railway track.
Beltyukov Vladimir, associate professor of Petersburg State Transport University, Deputy head of the «Railway Track» department, e-mail email@example.com
Simonyuk Ivan, assistant lecturer, graduate student of Petersburg State Transport University, «Railway Track» department, e-mail: firstname.lastname@example.org
Andreyev Andrey, assistant lecturer, graduate student of Petersburg State Transport University, «Railway Track» department, e-mail: k26BVP1@pgups.edu
Sennikova Anna, graduate student of Petersburg State Transport University, «Railway Track» department, e-mail: k26BVP1@pgups.edu