文献类型：期刊文献

英文题名：Experimental Study on the Interaction between Backfill and Surrounding Rock in the Overhand Cut-and-Fill Method

作者：Liang, Wei Li, Ke Luo, Jiashun Zhe, Yalei Xu, Mengtang Feng, Fushou

第一作者：Liang, Wei

通信作者：Liang, W[1]

机构：[1]Guizhou Inst Technol, Inst Min Engn, Guiyang 550003, Peoples R China;[2]Hunan Univ Sci & Technol, Sch Resource Environm & Safety Engn, Xiangtan 411201, Peoples R China;[3]Tech Univ Clausthal, Inst Subsurface Energy Syst, D-38678 Clausthal Zellerfeld, Germany;[4]Kunming Univ Sci & Technol, Fac Land Resources Engn, Kunming 650093, Yunnan, Peoples R China

第一机构：贵州理工学院矿业工程学院

通信机构：corresponding author), Guizhou Inst Technol, Inst Min Engn, Guiyang 550003, Peoples R China.|贵州理工学院矿业工程学院;贵州理工学院;

年份：2022

卷号：12

期号：8

外文期刊名：MINERALS

收录：;Scopus(收录号：2-s2.0-85137768773);WOS:【SCI-EXPANDED(收录号:WOS:000846522200001)】；

基金：This research was funded by the Guizhou Provincial Science and Technology Projects (No. QKHZC [2021] General 407), the New Talent Training Project of Guizhou Institute of Technology (No. GZLGXM-29), the National Natural Science Foundation of China (No. 52104123), and the China Scholarship Council (No. 202108525011).

语种：英文

外文关键词：backfill mining; physical model; strata deformation; backfill-surrounding rock interaction

摘要：Backfilling is commonly used in underground mines to improve the stability of overlying strata. The performance of the backfill and its interaction with surrounding rock are the key issues in backfill mining research. In this paper, the displacement and stress field evolution characteristics of the overlying strata in backfill mining were analyzed by a physical model, as well as the interaction between the backfill and surrounding rock. The research results show that when backfill mining is employed, the backfill mass and the unexcavated rock mass jointly bear the loads of the overlying strata. The loads of the overlying strata are transferred to the dense backfill mass and the surrounding rock. The stress in the near-field area of the surrounding rock increases and stabilizes gradually. The backfill mass improves the stress distribution state and reduces the stress concentration of the surrounding rock, which is conducive to preventing the progressive damage of the overlying strata. In addition, the backfill mass excavation has a significant influence on the stability of the overlying strata and the surrounding rock stress field. The backfill mass is a passive force-bearing structure that can effectively manage the deformation of the overlying strata and the phenomenon of underground pressure.