Instruments and Control
VŠB-TU Ostrava, 6.5.2003
| Annotation of paper No. 48 |
|---|
| Title: | Utilization of mathematical modeling for protection of inhabitants against the methane leakage from the underground of the mines closed |
| Author(s): | GOTTFRIED, Jan |
| Text: | The dangerous outlets of gas in the Ostrava region have been still actual, and, that is why, in the framework of grant task we have focused on the area of Jaklovec mine where a whole number of dangerous situations has been registered. Before commencement of mathematical modeling we had not complex mine and geological documentation (maps) for our disposal. That is why, in our preliminary model, we have implemented substantially higher resistance, res. lower permeability in perpendicular direction on the medium dip seams. It followed from these input values that it will be necessary to exhaust on bore holes JD 14 and JD 3 for ensuring the effective influencing of the locality. The subsequent suction test which has been realized thanks to the initiative of VIP s.r.o., has confirmed that for influencing of the locality the exhausting on the bore hole JD 14 is sufficient. The relevant values of the mathematical modeling results and course of verification are given in this contribution. |