장기개발 탄광의 원가절감 방안 및 기계화 연구 [1999]
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| 자료유형 | KIGAM 보고서 |
|---|---|
| 서명 | 장기개발 탄광의 원가절감 방안 및 기계화 연구 [1999] |
| 저자 | 정소걸 |
| 언어 | KOR |
| 청구기호 | KR-99-R-19-1999-R |
| 발행사항 | 한국자원연구소, 2000 |
| 초록 | 기술개발결과 및 활용에 대한 건의: - chock지보 활용으로 기계화 채탄법 개발. - 완경사탄층 채탄법 개발 및 현장적용 시험. - 현행채탄법 현장조사 및 적용채탄법 선정 The reducing coal market has been forcing the coal industry to makeexceptional rationalization and restructuring efforts since the end of the eighties.Its competition with crude oil and natural gas has added to the growingpressure of raised wages and higher production costs when the working facesget deeper.The study was conducted to improve the competitiveness of the remainingeleven coal mines after the rationalization of the coal industry. The results weresummarized as follows.1. The Jungang pit of the Dogye Coal Mine is characterized by a gentle inclinedcoal seam with an average dip of 15 degrees and a thickness of 2m, rangingfrom 0.3m to 4m. The present sublevel caving method begins with thesubdivision of the coal seam into a regular pillar by driving parallel coal raisesevery 9m. The pillars between the two neighboring raises are extracted bycutting a rib coal up to one to two meters deep by leaving 2 to 3 meter-widecenter parts as safety pillars.2. Low productivity and low recovery could be solved by replacing the sublevelcaving method with the new-board-and-pillar mining method. The parameters,such as the dip of the seam, thickness, strength of the coal and working depth,were taken into consideration for the application of the new mining method. Asystem with slusher can suitably be applied to accomplish a safe and moreeconomic extraction of the coal pillars.3. A sublevel caving method, applied in the Maro Mine, enabled the leveling upof improved mining safety as well as the productivity and the coal quality.4. The productivity was not improved solely by the mechanization of the coalmining, in the domestic coal mining industry. It depended on how each miningoperation(such as, heading, support, coal winning, and transportation) wassystematically organized. Each step throughout mining operations should havebeen carefully analyzed in order to determine better solutions for improved effectiveness.5. Over a period of four years, the following results were achieved through the mechanization of coal mining.- Annual production decreased by 1,359,000 tons.- Coefficient of the coal mining mechanization increased by 2%- Overall productivity of the coal mines increased by 0.04 torx/man/shift |
| 페이지 | 115 p. |
| 키워드 | 광업권, 채탄법 |
| 원문 | 다운로드 |
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- 한국지질자원연구원
- 등록일
- 2000-04-11
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정소걸. (2000). 장기개발 탄광의 원가절감 방안 및 기계화 연구 [1999]. 한국자원연구소.
