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Control of the beginning of accidents in railroad operation safety systems in seismically active regions using the noise technology

Aliev Telman, Babayev Tofig, Alizada Tahir, Rzayeva Narmin

Transport Problems

2019

T. 14, z. 3

155--162

On the railroads in seismically active regions, the impact of frequent weak earthquakes accelerates the initiation of defects such as wear and tear, cracks and deformation due to fatigue. An analysis of the types and stages of initiation and development of defects preceding accidents at technical facilities has shown that the registration of the beginning of the latent period of transition of objects to an emergency state based on the results of traditional technologies of analysis of measurement information in the applied control systems in the field of railway transport is delayed owing to the difficulties of noise analysis. The proposed algorithms and noise analysis technologies allow forming corresponding sets of informative attributes to control the beginning of the latent period of accidents. Their use in intelligent noise control systems will improve the safety of this mode of transportation. To this end, it is expedient to create a subsystem for noise seismic hazard warning, i.e., a subsystem for noise control of the onset of the initiation and dynamics of development of changes in the technical condition of the rolling stock, railroad tracks, bridges, tunnels, and other railroad infrastructure facilities.

Projektowanie konstrukcji z gruntu zbrojonego narażonych na oddziaływania sejsmiczne

Kazimierowicz-Frankowska K.

Inżynieria Morska i Geotechnika

2014

nr 6

881--888

Zasady projektowania sejsmicznego konstrukcji z gruntu zbrojonego. Metody obliczeniowe. Porównanie założeń pseudostatycznego i pseudodynamicznego sposobu analizy problemu. Przykładowe wyniki obliczeń. Praktyczne wnioski wynikające z analizy.

Seismic design of reinforced soil structures. Methods of calculations. Comparison of pseudostatic and pseudodynamic approaches based on the limit state analysis. Typical results of calculations. Main practical conclusions.