Study on Surrounding Rock Control of Withdrawal Space in Fully Mechanized Caving Mining of a 19 m Extra-Thick Coal Seam. - Chen, Dongdong; Wang, Zhiqiang; Yue, Shuaishuai; Xie, Shengrong; He, Fulian; Tian, Chunyang; Jiang, Zaisheng; Liang, Dawei; Qi, Bohao (Applied Sciences (2076-3417), 2024)