ICGCM Papers:
Pillar Design and Evaluation
 
 
Coal pillar design in Tabas Central Mine of Iran
29th International Conference on Ground Control in Mining
Coal pillar design in Tabas Central Mine of Iran
by
Ebrahim GhasemiKourosh ShahriarMostafa Sharifzadeh, Amirkabir University of Technology, Tehran, Italy
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[Conference] 29th International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Pillar Design and Evaluation
[Author] Ebrahim GhasemiKourosh ShahriarMostafa Sharifzadeh, Amirkabir University of Technology, Tehran, Italy
[Abstract] 

The Tabas Central Mine (TCM) is one of the underground coal mine located in Tabas coal region, in mid eastern of Iran. This mine is the first mechanized coal mine of Iran that is designed by room and pillar method. Design of pillars in underground coal mines is one of the most important issues, especially in room and pillar mining. Recently, various pillar design methods are introduced but most of them don’t regard the abutment loads. Abutment loads occur as a result of pillar recovery and gob formation. Pillar design with disregarding the abutment loads may lead to instability and failure of the system during pillar recovery operation. In this paper, a new method for coal pillar design in main panel of TCM is presented. This method is able to estimate the magnitude of the various loads that pillars might experience throughout the mining process. Also, the method reduces the pillar failure risk. Based on this method, proper pillar sizes in the above mentioned mine are obtained 11.6*11.6m.

 

Keywords: coal pillar design, room and pillar, abutment loads, pillar recovery, Tabas Central Mine.