Influence mechanism of thick hard strata breakage on overburden collapse and movement in ultra-large mining height faces
1Coal Mining Branch, China Coal Research Institute, Beijing 100013, China
2CCTEG Coal Mining Research Institute, Beijing 100013, China
3State Key Laboratory of Intelligent Coal Mining and Strata Control, Beijing 100013, China
4School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
5Tiandi Science and Technology Co., Ltd., Beijing 100013, China
6School of Mines, China University of Mining and Technology, Xuzhou 221116, China
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