黑龙江科技大学学报2025，Vol.35Issue(3)：388-394,7.DOI:10.3969/j.issn.2095-7262.2025.03.007
倾斜煤层回采工作面底板应力的演化规律
Stress evolution law behind working face baseplate in inclined coal seam
刘树林 1赵圣雷 1林大力 1徐金国 2陈飞 2宋玥3
作者信息
- 1. 黑龙江科技大学 安全工程学院,哈尔滨 150022||黑龙江龙煤鸡西矿业集团有限责任公司,黑龙江 鸡西 158100
- 2. 山西和顺天池能源有限责任公司,山西 晋中 030600
- 3. 黑龙江科技大学 矿业工程学院,哈尔滨 150022
- 折叠
摘要
Abstract
This paper intends to investigate the baseplate stress evolution law and its influence on the safe production in working face in the process of mining inclined coal seam.The study works by establis-hing a stress distribution model of the inclined coal seam baseplate through theoretical analysis and FLAC3D numerical simulation software;and analyzing the baseplate stress evolution law in the inclined coal seam mining face from the angles of working face inclination and direction.The results show that the vertical stress in the lower lane of the working face is always greater than that in the upper lane,and the stress concentration range in the lower lane is larger than that in the upper lane.Along the direction of the working face at 25-180 m,the maximum vertical stress of the floor increases from 26.28 to 28.24 MPa gradually;at the same time,the stress concentration area also expands from 16 m to 26 m.When the working face advances to 110 m,the baseplate stress reaches a stable state and the vertical dis-placement of the baseplate reaches 180 mm.关键词
倾斜煤层/回采工作面/底板应力演化Key words
inclined coal seam/working face/stress evolution of baseplate分类
矿山工程引用本文复制引用
刘树林,赵圣雷,林大力,徐金国,陈飞,宋玥..倾斜煤层回采工作面底板应力的演化规律[J].黑龙江科技大学学报,2025,35(3):388-394,7.
