黑龙江科技大学学报2025，Vol.35Issue(6)：875-881,7.DOI:10.3969/j.issn.2095-7262.2025.06.002
双阳煤矿二水平西一采区工作面的矿压显现规律
Ground pressure behavior law behind ultra-thin coal seam at working face of west one mining area in Shuangyang Coal Mine
摘要
Abstract
This paper aims to investigate the characteristics behind ground pressure behavior in ultra-thin coal seams.By taking a second level working face of the western mining area in Shuangyang Coal Mine as the research object,the study conducts the investigation of the ground pressure behavior com-bined with theoretical analysis and numerical simulation at the working face.The results indicate that the data of the values of initial weighting step,periodic weighting step,advanced support stress,and the peak value of the advanced support stress from the coal wall are generally consistent with the results of theory and numerical simulation.The first and periodic weighting intervals of the main roof are 51 m and 21 m in theory,respectively,while,these intervals range from 45-50 m and 20-25 m by numerical simulations;and the peak values of the advanced support stress are 26 and 27.5 MPa by theory and sim-ulation.In the mining process,the vertical stress,roof displacement,and floor displacement exhibit a positive correlation with the working face stope distance.In addition,the distribution of the vertical stress peaks varies significantly along the upper,middle,and lower sections of the working face.关键词
极薄煤层/初次垮落步距/周期垮落步距/超前支承应力Key words
ultra-thin coal seam/initial roof weighting interval/periodic roof weighting interval/ad-vanced abutment pressure分类
矿业与冶金引用本文复制引用
Liu Gang,Zan Yonglong,Yang Zhitao,Wang Dongwei,Wang Shengxuan..双阳煤矿二水平西一采区工作面的矿压显现规律[J].黑龙江科技大学学报,2025,35(6):875-881,7.基金项目
黑龙江省自然科学基金项目(202023E008) （202023E008）
