About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Osipova Liliya Eduardovna candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Varsegova Evgeniya Vladislavovna candidate of physical-mathematical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Varsegov Alexander Vladislavovich engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it OJSC «Gazprom transgaz Kazan» The organization address: 420073, Russia, Kazan, A. Kutuya st., 41 |
| Title of the article | To the calculation of the distribution of damaging factors of accidents on gas pipelines |
| Abstract. | Problem statement. In the Russian Federation, a unified gas supply system with a pipe diameter of up to 2,6 m, which is subjected to significant internal and external loads during the whole period of operation. Since the main gas pipeline routes are mainly underground, they pass through residential areas, cross roads or other communications, possible accidents with gas emissions followed by fire or explosion can lead to disastrous consequences both for the environment and for the population. The calculation of the intensity of the outflow of emergency gas emissions and the determination of zones of possible dispersion of pipe and soil fragments is necessary in the investigation of the accident and the development of documents related to the safety of operation of pipeline transport, as well as in determining the amount of compensation payments. Results. For the section of the high pressure gas pipeline with a diameter of d = 1420 mm, a working pressure Pнаг = 7,5 MPa and a length of L = 120 km, a graph of the total gas outflow dynamics was calculated (the gas pipeline was guillotine, for a full cross section) and the time for complete emptying was determined. The sizes of zones (on the surface of the earth) of scattering of pipe fragments and soil fragments have been determined. Conclusions. The significance of the results obtained for the construction industry is that they allow us to estimate the scale of a possible accident already at the design stage. The found spatial distribution of the scattering parameters of pipe fragments and soil fragments (range, height and time) makes it possible to assess the impact of shock effects. |
| Keywords. | accident, gas pipeline, depressurization, flow rate, shock effect. |
| For citations: | Osipova L.E., Varsegova E.V., Varsegov A.V. To the calculation of the distribution of damaging factors of accidents on gas pipelines // Izvestiya KGASU. 2018. №4(46) P.226-226. |
