롱월채탄 적용과 메탄가스 및 지반침하 예측기술 소개 = Forecasting Technology of Methane Gas and Subsidence for Application of Longwall Mining

다국어 초록 (Multilingual Abstract)

Long-wall coal mining method is using a large scale automatic equipment for coal production and it makes tens of thousands per day at the intensive mine site. Before we carrying out long-wall mining method, many research and pre-processing are necessary to be performed. Among those processes, ventilation and exhaust system is the most important part to emit methane gas of coal bed. Methane gas emission is necessary to perform efficiently in the short or long-term during the development or pre-development period. About long-wall mining method, there are many studies of methane gas control system were conducted. The studies were using input data with variety of conditions for using artificial neural network systems which can help us to infer methane gas flow rate and concentration. And also, when we using Long-wall mining method, the subsidence is inevitable. However, if we could estimate the volume and scale of subsidence at right time, we could minimize the damage which caused by subsidence.

국문 초록 (Abstract)

롱월채탄은 대규모 자동화 기계장비를 사용하여 집약된 작업장에서 하루 수 만톤의 석탄을 생산하는 시스템이다. 롱월채탄을 수행하기 이전에 많은 조사와 전처리 과정을 수행하게 되는데 이중에서 중요한 요소가 탄층의 메탄가스 등을 배출시키기 위한 통기 및 배기시스템이다. 메탄가스배출은 개발이전 또는 개발 중 장단기 기간중에 효율적으로 수행할 필요가 있다. 롱월에서 메탄가스 제어시스템은 많은 연구가 이루어 졌으며, 주변의 여러 가지 조건들을 입력자료로 하여 최종적으로 메탄가스 유동량과 농도를 추론하는 인공신경망시스템 등을 활용하는 방법등이 있다. 또 롱월채탄은 지반침하가 필연적으로 이루어지는데, 시기적절한 침하량과 침하규모 등을 예측함으로써 지반침하에 의한 피해를 최소화 시킬 수 있다.

참고문헌 (Reference)

1 KORES, "롱월채탄"

2 Ozgen Karacan, "Methane Control Toolkit for Longwall Mines (User manual v 1.2)"

3 Kazem Orace, "Mathemetical Modeling Coal Seam Methane Drainage in Longwall Mining" 9-, 2010

4 Kazem Oraee, "Mathemathical Modeling of Coal Seam Methane Drainage in Longwall Mining"

5 Xu, B, "Longwall top coal caving method-highly effcient mining method used in Yanzhou coalfield" 169-172, 1999

6 Longwall mining in Western Pennsylvania, "Longwall mining in Western Pennsylvania"

7 GW Mitchell, "Longwall Mining" BHP 340-375,

8 Mine Subsidence Engineering Consultats, "Introduction to Longwall Mining and Subsidence"

9 Hebblewhite, B, "Alternative longwall panel layouts for use in Australian coal mines, in Seminar on Longwall Mining Design, Development and Extraction" Australian Coal Industries Research Laboratories/ Australian Coal Association 41-54, 1983