Subsidence control method by inversely-inclined slicing and upward mining for ultra-thick steep seams

作     者：Huayang Dai Peng Li Nurpeissova Marzhan Yueguan Yan Chongliang Yuan Tursbekov Serik Junting Guo Yryszhan Zhakypbek Konbay Seituly Huayang Dai;Peng Li;Nurpeissova Marzhan;Yueguan Yan;Chongliang Yuan;Tursbekov Serik;Junting Guo;Yryszhan Zhakypbek;Konbay Seituly

作者机构：School of Geosciences and Surveying EngineeringChina University of Mining and Technology-BeijingBeijing 100083China State Key Laboratory of Coal Resource and Safe MiningChina University of Mining and Technology-BeijingBeijing 100083China Satbayev UniversityAlmaty 050013Kazakhstan Yaojie Coal and Power Group Company LtdLanzhou 730080China Al-Farabi Kazakh National UniversityAlmaty 050040Kazakhstan China Energy Investment CorporationBeijing 100000China 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2022年第32卷第1期

页      面：103-112页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：sponsored by the National Natural Science Foundation of China(Nos.51574242 and 5097412) 

主　　题：Ultra-thick steep coal seam Horizontal slicing Subsidence control method Inversely-inclined slicing and upward mining Application study 

摘      要：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 *** 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 *** application of the method in No.3 Mine in Yaojie mining area has yielded the expected result.