黑龙江科技大学学报2025，Vol.35Issue(6)：922-929,8.DOI:10.3969/j.issn.2095-7262.2025.06.009
褶皱构造区工作面特征点的支承应力演化规律
Evolution law behind supporting stress at characteristic points of working face in folded structure zone
摘要
Abstract
This paper attempts to explore the evolution law behind supporting stress of the working face in the folded structure zone.The study establishes a single fold structure model by FLAC3D numerical simulation to study the evolution law behind the supporting stress in the structural area with different cur-vatures and different propulsion distances.The results indicate that under different curvatures of the fold structure,the abutment stress in the working face exhibits the zoning characteristics.As the curvature in-creases,the stress unloading zone in the anticline area,controlled by the ridge point,gradually transfers to a stress concentration zone at the inflection point,while the inflection point in the syncline area evolves into the dominant peak stress zone,with its progressive enhancement of the stress concentration level.When the curvature is0.007 8 m-1,with the distance advancing,the abutment stress in the anticline ar-ea tends to distribute more uniformly,showing a trend of evolution from non-uniform to uniform distribu-tion,whereas the abutment stress in syncline area demonstrates a continuous enhancement with a tenden-cy toward non-uniform distribution.关键词
褶皱构造/曲率/特征点/支承应力Key words
fold structures/curvature/characteristic points/supporting stresses分类
矿业与冶金引用本文复制引用
Liu Jianyu,Wu Pan,Liu Huanhuan,Shan Lei..褶皱构造区工作面特征点的支承应力演化规律[J].黑龙江科技大学学报,2025,35(6):922-929,8.基金项目
国家自然科学基金项目(52174075) （52174075）
