河南理工大学学报（自然科学版）2026，Vol.45Issue(2)：1-10,10.DOI:10.16186/j.cnki.1673-9787.2025030009
采动影响下逆断层稳定性及覆岩移动规律研究
A study on the stability of reverse faults and overlying strata movement under mining disturbance
摘要
Abstract
Objectives The stability of reverse faults and the overlying strata movement pattern under mining influence is investigated to prevent fault activation and instability triggered by mining activities.Methods Through a combination of engineering case studies,theoretical analysis,and numerical simulations,the fault activation mechanism under mining disturbance is systematically analyzed.The susceptibility of fault activation during hanging-wall and foot-wall mining operation is quantitatively assessed and the correspond-ing failure modes and fracture development patterns in the overlying strata are compared.Results The re-sults show that:(1)During hanging wall mining of the reverse fault,both normal and shear displacement vectors of the overlying rock joints approach 0,indicating minimal mining impact on strata movement and fault activation.Although stress concentration is observed near the fault but no slip displacement occurs.(2)During foot-wall mining,the maximum overlying strata settlement is 0.16 m higher than during hanging-wall mining,with greater fracture development height.The normal and shear displacement vectors of the overlying rock joints reach 0.4 m and 1.3 m,respectively.Under the influence of mining,the fault exhibits both stress concentration and activation-induced slip instability.(3)Using the activation risk index Q to evaluate the fault activation risk,foot-wall mining is found to demonstrate higher susceptibility to fault slip activation.(4)The stability criteria for faults during hanging-wall and foot-wall mining are determined to be T/F>0.087 and T/F>11.43,respectively,indicating greater instability risk during foot-wall mining.Significant differences in fault stability are observed between the two mining scenarios.(5)For foot-wall mining,a protective coal pillars with a horizontal distance exceeding 117 m between the working face and the fault is required.Conclusions These results provide critical insights for optimizing coal resource recov-ery while ensuring mining safety in areas affected by reverse fault structures.关键词
逆断层/开采扰动/活化/裂隙发育/应力集中Key words
reverse fault/mining disturbance/activation/fracture development/stress concentration分类
矿业与冶金引用本文复制引用
郭文兵,胡超群,张伊辉,葛志博..采动影响下逆断层稳定性及覆岩移动规律研究[J].河南理工大学学报（自然科学版）,2026,45(2):1-10,10.基金项目
国家自然科学基金资助项目(U21A20108) （U21A20108）
河南省国际科技合作项目(251111521200) （251111521200）
