2005•Journal of the Southern African Institute of Mining and MetallurgyOpen access

Development of a new mathematical model for prediction of surface subsidence due to inclined coal-seam mining (

Keyvan Asadi, Shahriar, Goshtasbi, K. Najm

Abstract

Subsidence phenomenon as an unwanted consequence of underground mining can cause problems for environment and surface structures in mine area. Surface subsidence prediction for inclined and steep seams has been given less attention than horizontal seams due to the difficulties involved in the extraction of such coal-seams. This paper introduces a new profile function method for prediction of surface subsidence due to inclined coalseam mining. The results of calculation with the new function indicate that the predicted value has good agreement with the measured data. Keywords: subsidence; coalmining; caving mining methods; longwall mining; profile function.

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Key concepts: Coal mining, Groundwater-related subsidence, Subsidence, Mining engineering, Longwall mining, Geology, Extraction (chemistry), Surface (topology)