Deformation mechanism and ''stress relief-support reinforcement'' synergistic control of gob-side roadway under thick and hard directly overlying roof
1College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, China
2Shandong Energy Group Co., Ltd., Jinan 250101, China
3Yankuang Energy Group Co., Ltd., Jining 272000, China
4State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102209, China
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