2025 44 (10):  2533-2550    ISSN: 1000-6915  CN: 42-1397/O3 Cooperative evolution of the mining stress field-fracture field and disaster-forming mechanism in steeply inclined and extra-thick coal seam LAI Xingping1, 2, WANG Hao1, 2, CUI Feng1, 2, LI Haodang3, LIU Xudong3, FENG Panfei3 (1. College of Energy and Mining Engineering, Xi?an University of Science and Technology, Xi?an, Shaanxi 710054, China; 2. Key Laboratory of Western Mines and Hazard Prevention of China Ministry of Education, Xi?an University of Science and Technology, Xi?an, Shaanxi 710054, China; 3. Xinjiang Energy Co., Ltd., State Energy Group, Urumqi, Xinjiang 830002, China) Received: null  Revised: null  Online: null Supporting info