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K. Matsui, H. Shimada, T. Sasaoka and H. Furukawa, “Some Consideration in Underground Mining Systems for Extra-Thick Coal Seam,” Coal International, Vol. 259, No. 2, 2011, pp. 38-41.

has been cited by the following article:

• TITLE: Numerical Study on an Applicable Underground Mining Method for Soft Extra-Thick Coal Seams in Thailand

  AUTHORS: Nay Zarlin, Takashi Sasaoka, Hideki Shimada, Kikuo Matsui

  KEYWORDS: Multi-Slice Bord-and-Pillar Method; Soft Extra-Thick Coal Seams; Numerical Analyses; Flac3D

  JOURNAL NAME: Engineering, Vol.4 No.11, November 20, 2012

  ABSTRACT: The EGAT Mae Moh Mine is the largest open pit lignite mine in Thailand and it produces lignite about 16 million tons annually. In the near future, the pit limit of the mine will be reached and underground mine will then be developed through the open pit in the depth of 400 - 600 m from the surface. However, due to the challenges for underground mining such as poor geological conditions, extra thickness (20 - 30 m) of coal seams, and weak mechanical properties of coal seams and the surrounding rock, the success possibility of underground mining and an applicable underground mining method is being investigated at the present. The paper discusses the applicability of multi-slice bord-and-pillar method for the soft extra thick coal seams in the Mae Moh mine by means of numerical analyses using the 3D finite difference code “FLAC3D”.