Mathematical model of ventilation process interrupted by a rock burst

Authors: W. Dziurzyński, A. Krach

In this articlc prescnted are considerations regarding thc impact of shock or rock burst on performancc of mine ventilation networks.

A practical approach being applied to control such venti-lation systems is to usc a mcthod of forecasting of the vcnting (aeration) process of mine ventilation network, with application of computer simulation of thc occurring phenomena.

The new issue that has not been taken into consideration until now in application of forecasting method of the air and methane mixture's spreading in mine excavation network, is a mathematic description of phenomena caused by rock burst, as well as impact of a sudden inflow of methane on the air and methane mixture's spreading and methane concentration distribution.

Presented here is a mathematical model, with consideration of a phenomenon called after-blow, as well as transportation of the air and methane mixture after the shock or rock burst.