지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 267 - 276 (10page)
이용수
초록· 키워드
오류제보하기
This study investigates the effect of key stratum on the mining abutment pressure of a coal seam. Firstly, a total of 42 configurations with different key stratum thicknesses and heights have been numerically simulated by the Universal Distinct Element Code (UDEC) software. Then, through the analysis of two sets of parameters derived from the simulation results, the peak abutment pressure and the range of influence, shows that the effect of key stratum on the abutment pressure is conditional. For a relatively small key stratum thickness, less than 159 m, the effect on the abutment pressure is negligible unless the key stratum height is higher than the critical height of 421 m. On the other hand, for the key stratum thickness bigger than 159 m, the abutment pressure is affected irrespective of the key stratum height. Finally, in order to verify the simulation results, the abutment pressure of a field model has been analyzed. The analysis shows that the abutment pressure of the field model with a key stratum is 42% higher than that of the model without any key stratum. The stress at the field model has increased from the virgin stress of 14.6 MPa to the stress of 21.5 MPa. Meanwhile, the stress concentration coefficient has changed from 1 to 1.5, which caused the coal and gas burst disaster. The results of this study can be very useful to explain the reason for the occurrence of some dynamic disasters affected by the key stratum.
목차
등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
Cha, W. H. / 2004 / Numerical simulation on the pressure distribution law in the surrounding rocks of fully mechanized mining field / Ground Pressure and Strata Control 4:1~3
Hosseini, N. / 2011 / Studying the stress redistribution around the longwall mining panel using passive seismic velocity tomography and geostatistical estimation / Arabian Journal of Geosciences 6:1407~1416
Liu, J. J. / 2008 / Analysis and simulation on the distribution parameters of the stresses on the front of mining field / Journal of China coal society 33:743~747
Lu, Y. / 2008 / Development law of advanced abutment pressure of coal seam / Journal of Liaoning Technical University 27:184~187
Mao, X. B. / 1998 / The breaking law of the key strata in the mining overlying rocks / Journal of China University of Mining and Technology 27:39~42
Hosseini, N. / 2011 / Studying the stress redistribution around the longwall mining panel using passive seismic velocity tomography and geostatistical estimation / Arabian Journal of Geosciences 6:1407~1416
Liu, J. J. / 2008 / Analysis and simulation on the distribution parameters of the stresses on the front of mining field / Journal of China coal society 33:743~747
Lu, Y. / 2008 / Development law of advanced abutment pressure of coal seam / Journal of Liaoning Technical University 27:184~187
Mao, X. B. / 1998 / The breaking law of the key strata in the mining overlying rocks / Journal of China University of Mining and Technology 27:39~42
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
An Exploratory Study on Strata Residential Properties Problems in Peninsular Malaysia and How They Are Resolved
한국주거학회 국제학술대회논문집
2015 .04
-
An Exploratory Study on Strata Residential Properties Problems in Peninsular Malaysia and How They Are Resolved
한국주거학회 학술대회논문집
2015 .04
-
초등예비교사의‘지층과 암석’에 대한 프로젝트 학습이 자기주도적 학습능력 및 환경감수성에 미치는 효과
대한지구과학교육학회지
2016 .01
-
말레이시아 주택의 구분소유권에 관한 탐색연구
한국주거학회논문집
2015 .12
-
전수층 무응답 편향보정 추정법에 관한 연구
응용통계연구
2020 .08
-
핵심역량중심교육 관점에서 지층관련 초등과학교과서의 지식과 예비초등 교사들의 개념 연구
대한지구과학교육학회지
2021 .01
-
Where art thou “the great hiatus?”− review of Late Ordovician to Devonian fossil-bearing strata in the Korean Peninsula and its tectonostratigraphic implications
Geosciences Journal
2017 .01
-
Mechanism of the dynamic pressure caused by the instability of upper chamber coal pillars in Shendong coalfield, China
Geosciences Journal
2017 .01
-
Revision of the sequence stratigraphy and nomenclature of the Miocene strata in the Ulleung Basin, offshore Korea
대한지질학회 학술대회
2019 .10
-
Protection scope and gas extraction of the low-protective layer in a thin coal seam: lessons from the DaHe coalfield, China
Geosciences Journal
2018 .01
-
시추공내에서의 지층 분포에 따른 지하수 내 라돈 및 이화학적 특성
대한지질학회 학술대회
2018 .10
-
층별 응답률 사용한 멱배정 방법의 확장
응용통계연구
2021 .10
-
탄성파 층서단위 표준화와 해저 심부 지질도 작성의 방향성 논의
대한지질학회 학술대회
2016 .10
-
Surface crack and sand inrush disaster induced by high-strength mining: example from the Shendong coal field, China
Geosciences Journal
2018 .01
-
Rock burst risk in an island longwall coal face by stress field
Geosciences Journal
2018 .01
-
초등예비 교사의 스토리텔링 기법 적용이 과학개념 습득 및 과학교수효능감에 미치는 효과
대한지구과학교육학회지
2017 .08
-
제주도 퇴적층 내 석영입자의 기원 추정: 광 여기 루미네선스 신호와 지화학적 접근
대한지질학회 학술대회
2024 .10
-
삼척시 하군천리에 분포하는 태백산분지 최하부층에 대한 퇴적상 분석
대한지질학회 학술대회
2018 .10
-
문경층군 탄산염암층에서 산출된 캄브리아기 유관절 완족동물에 관한 연구
한국고생물학회 정기총회 및 학술발표회
2018 .02
-
Geochemical fingerprinting of basaltic glass in tephra deposits underlying the human footprints-bearing strata in Jeju Island, Korea : Provenance of tephra and age of the human footprints : 테프라 기원지와 사람 발자국의 형성시기
지질학회지
2015 .04
이 논문의 저자 정보
최근 본 자료
댓글(0)
0