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We are focusing on exploring a new driving force for growth by concentrating
on diversification of business such as overseas resources development, engineering business etc.

Domestic Resources Development

Introduction

Kyungdong has experiences accumulated for decades and overall technical skills to operate mines.

Kyungdong has developed the coal layer very successfully from the complicated geological structure for over 40 years that geological folds
and faults have been developed, and difficult geological conditions have left valuable experiences and technical skills to Kyungdong after decades have passed
in all processes of production such as survey, digging through, treatment of pumice stone and coal mining etc.

The coal mining method in a type of sub-level caving which is one of the coal mining methods in a type of caving
in the pit can be said to be a representative coal mining method of Kyungdong.

It is not the existing traditional sub-level caving method and plays
a huge role in improving productivity by creating active changes according to geological conditions that vary in each mining site.

Dimension of Pit (Steel Arch-Typed Support)

  • Double Tracked Haulage Way
    (4.8m x 3.5m)
  • Single Tracked Haulage Way and Cross Haulage Way
    (3.8m x 2.8m)
  • Coal Mining Working Site
    (3.2m x 2.4m)
Width(M) Average Calorie
(kcal)		 Total extension
of coal mine(Km) 		Operation Depth (ML) Temperature at
Working Site
(℃)
Top Bottom Main Operation
3.5 ~ 5 5,200 56 250 -440 -220 28
  • 01 Larger Frame of Shaft
    (Mechanization, Ventilation,
    Advantageous for Transport)
    • Dimension of Shaft :
      Double Track 4.8×3.5,
      Single Track 3.8×2.8
  • 02 Maximization of Transport
    Efficiency
    • Conveyor System from
      Working Site to Surface
      (B/C : 7,985M, C/C : 144 units)
  • 03 Maximization of
    Mechanization Efficiency
    • Coal Mining : Long Hole Boring
      Machine, Super Coal Miner
    • Digging : Pneumatic 2-Boom
      drill, Hydraulic Drilling/S.D.L,
      Side dump loader
  • 04 Operation of Central
    Intensive Control Center
    • The first digital control device
      in the country to identify and
      adjust the status of shaft and
      surface
    • Automatic Gas Detection,
      Ventilation (Fan), Transport,
      Mechanical and Electric
      System Control (Transmission
      by Optical Cable)

Production Process

  • 01 Boring to Explore Coal
  • 02 Constructing Haulage Way
  • 03 Constructing Coal Mining Way
  • 04 Caving
  • 05 C/C Transport
  • 06 Transport by Vehicle with Condenser
  • 07 HOPPER in Shaft
  • 08 B/C Transport