Location

Rolla, MO

Session Start Date

6-11-1999

Session End Date

6-17-1999

Keywords and Phrases

Optimization; Ventilation; Modeling; Climatization; Norming of Microclimate; Heat -risk

Abstract

The development of underground mines in Bulgaria has reached depth limit. The conventional approach for engineering the mine ventilation is unsatisfactory under the existing level of concentration and intensification of mining work under the already complicated mining and geological conditions. This necessitates the optimization of ventilation networks for achieving the required efficiency and reliability. Direct measurements in mines has created an adequate numerical mine ventilation model. This model can optimize and forecast the future development of the mine ventilation system with the help of computer software. By means of the prepared nomograms the individual parameters of the ventilating flow are optimized in accordance with the temperature of the adjacent rock surfaces surrounding the mine headings. The risk of thermal loading on workers can be determined satisfactorily. Ventilation study results for the two deep mines in Bulgaria (both exceeds 1,000 m) could also be used for other mines of similar depth and conditions in other countries.

Department(s)

Mining and Nuclear Engineering

Appears In

U.S. Mine Ventilation Symposium

Meeting Name

8th U.S. Mine Ventilation Symposium

Publisher

University of Missouri--Rolla

Publication Date

6-11-1999

Document Version

Final Version

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Jun 11th, 12:00 AM Jun 17th, 12:00 AM

Ventilation Network Optimization for Deep Mines

Rolla, MO

The development of underground mines in Bulgaria has reached depth limit. The conventional approach for engineering the mine ventilation is unsatisfactory under the existing level of concentration and intensification of mining work under the already complicated mining and geological conditions. This necessitates the optimization of ventilation networks for achieving the required efficiency and reliability. Direct measurements in mines has created an adequate numerical mine ventilation model. This model can optimize and forecast the future development of the mine ventilation system with the help of computer software. By means of the prepared nomograms the individual parameters of the ventilating flow are optimized in accordance with the temperature of the adjacent rock surfaces surrounding the mine headings. The risk of thermal loading on workers can be determined satisfactorily. Ventilation study results for the two deep mines in Bulgaria (both exceeds 1,000 m) could also be used for other mines of similar depth and conditions in other countries.