黑龙江科技大学学报2025，Vol.35Issue(3)：380-387,394,9.DOI:10.3969/j.issn.2095-7262.2025.03.006
煤矿深部开采地应力分布规律及影响因素
In-situ stress distribution and influence factors in deep coal mining
摘要
Abstract
This paper aims to explore the distribution patterns of in-situ stress and its dominant con-trolling factors in deep mining.The study involves setting the monitoring points at the East-1 central sta-tion,Central-3 mining district haulage way,and West main haulage roadway based on actual geological and mining conditions,conducting the in-situ stress measurements by using KX-2002 hollow inclusion stress cells,and inverting the initial stress field through multivariate linear regression method.The results show that the vertical stress increases linearly with burial depth,while the horizontal stress exhibits signif-icant spatial heterogeneity.The in-situ stress field demonstrates horizontal tectonic stress dominance,with the ratio of maximum horizontal principal stress to vertical stress ranging from 1.52 to 1.59;and the sig-nificant spatial differentiation characteristics are observed in triaxial stresses(x,y,z directions).The in-situ stress distribution is primarily controlled by dual factors:burial depth and geological structures,and the principal stresses show significant linear positive correlations with burial depth(gradient range:0.057-0.174 MPa/m).There is a high-stress concentration zone(39.63 MPa)in the northwestern mining area and a low-stress zone(6.47 MPa)in the western region,and these distribution patterns ex-hibit significant coupling relationships with fold morphology and fault structures.关键词
深部地应力/地应力反演/空心包体测量法Key words
deep in-situ stress/in-situ stress inversion/hollow inclusion method分类
矿山工程引用本文复制引用
李琳琳,王冬伟,王一伟,刘振文..煤矿深部开采地应力分布规律及影响因素[J].黑龙江科技大学学报,2025,35(3):380-387,394,9.基金项目
国家自然科学基金项目(52074110) （52074110）
