A review of cavability evaluation in longwall top coal caving

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Longwall Top Coal Caving has been considered as one of the most effective technologies for the extraction of underground thick coal seams. A large number of studies on the applicability of Longwall Top Coal Caving into new mine sites have linked the success of its application to the geomechanical understanding of the cavability of the top coal. The paper aims to improve the knowledge of the top coal cavability evaluation. A range of parameters that affect the top coal cavability were first identified. Afterward, a number of cavability assessment methods and classifications were reviewed. The result is important in that it assists researchers in developing an advanced and reliable tool for the top coal cavability evaluation.




Le, T. D., Mitra, R., Oh, J., & Hebblewhite, B. (2017). A review of cavability evaluation in longwall top coal caving. International Journal of Mining Science and Technology, 27(6), 907–915. https://doi.org/10.1016/j.ijmst.2017.06.021

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