For effective ventilation Kuznetsovsky railway tunnel the longitudinal scheme of ventilation based on use of jet fans is offered. It is shown that use of the offered scheme of ventilation at influence of natural draft and piston effect of trains is impossible without an automatic control system of ventilation (ACSV). The principles of work ACSV taking into consideration natural and operational factors are proved.
In paper the technique of definition of aerodynamic resistance of the train, a being main component of a piston pressure is resulted. The urgency of the given theme is caused by essential influence of a piston pressure on distribution of fresh air on a tunnel and accordingly on safe operation of railway tunnels.
Приведены результаты исследований возможности вовлечения в отработку забалансовых слоев отрабатываемых горизонтов Старобинского месторождения калийных солей. Актуальность данной задачи обусловлена весьма интенсивным погашением запасов рудной базы РУП ПО «Беларуськалий», в то время как вовлечение в разработку новых горизонтов – процесс дорогостоящий и требующий дополнительных геолого-разведочных работ.
The paper studies the formation of synclinal type geological dislocation at the Staroobinsk potash salt deposit. Using modern three-dimensional modeling programs, a fundamental difference in the formation of the upslope and downslope synclines has been established.
