Subsidence control method by inversely-inclined slicing and upward mining for ultra-thick steep seams
Dai H. Li P. Marzhan N. Yan Y. Yuan C. Serik T. Guo J. Zhakypbek Y. Seituly K.
January 2022China University of Mining and Technology
International Journal of Mining Science and Technology
2022#32Issue 1103 - 112 pp.
Ultra-thick steep coal seam mining will inevitably lead to the increase of greater and violent ground subsidence and deformation. A subsidence control method by inversely-inclined slicing and upward mining is proposed in this paper. By this method, the sequence of collapse of overlying strata and the direction of propagation of strata movement are changed, the extent of roof-side deformation thereby is lessened, and boundary angle of roof-side subsidence is reduced by 5°–10°. The mechanism of this mining method for control of strata movement has been evidenced by numerical simulation and experiments with similarity materials. A subsidence prediction model based on the variation of mining influence propagation angle can be used to evaluate the surface movement and deformation of the mining method. The application of the method in No.3 Mine in Yaojie mining area has yielded the expected result.
Application study , Horizontal slicing , Inversely-inclined slicing and upward mining , Subsidence control method , Ultra-thick steep coal seam
Text of the article Перейти на текст статьи
School of Geosciences and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China
State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology-Beijing, Beijing, 100083, China
Satbayev University, Almaty, 050013, Kazakhstan
Yaojie Coal and Power Group Company Ltd, Lanzhou, 730080, China
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
China Energy Investment Corporation, Beijing, 100000, China
School of Geosciences and Surveying Engineering
State Key Laboratory of Coal Resource and Safe Mining
Satbayev University
Yaojie Coal and Power Group Company Ltd
Al-Farabi Kazakh National University
China Energy Investment Corporation
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026