河南理工大学学报（自然科学版）2026，Vol.45Issue(3)：93-103,11.DOI:10.16186/j.cnki.1673-9787.2025100030
厚煤层开采覆岩离层注浆地表沉陷规律研究
Study on surface subsidence characteristics induced by overburden separation grouting in thick coal seam mining
摘要
Abstract
Objectives This study aims to investigate the surface subsidence characteristics of overburden separation grouting under different working face layouts.Methods The 11090 and 11080 working faces of a mine in Yimei Group were taken as the engineering background,and a combination of theoretical analysis and field monitoring was employed.Based on site conditions,the key strata and potential grouting horizons were identified.Surface movement observation stations were established to monitor subsidence under both grouted and non-grouted conditions,and the monitoring data were analyzed.Results The results show that:(1)Compared with the non-grouted 11010 working face in the same mining area,the movement angle of the 11090 working face under grouting conditions was larger,indicating that grouting effectively reduced the extent of mining-induced subsidence;(2)The isolated working face was affected by adjacent goaf ar-eas.and increasing the grouting-to-mining ratio and grouting volume can effectively protect surface struc-tures and control subsidence;(3)The working face size was an important factor affecting surface subsid-ence under both grouted and non-grouted conditions;(4)By analyzing the variation characteristics of boundary angles and applying spatial geometry,a calculation formula for the reduction of mining influence area was derived,providing a quantitative basis for evaluating subsidence control by grouting.Conclusions The findings provide important guidance for the safe and efficient application of overburden separation grouting,as well as for optimizing working face layout parameters.关键词
覆岩离层注浆/开采沉陷/厚煤层/孤岛工作面/边界角Key words
overburden separation grouting/mining subsidence/thick coal seam/isolated working face/boundary angle分类
矿业与冶金引用本文复制引用
杨恒,刘东,贾明魁,郭瑜,葛志博,郭文兵,李书文,闫浩..厚煤层开采覆岩离层注浆地表沉陷规律研究[J].河南理工大学学报（自然科学版）,2026,45(3):93-103,11.基金项目
国家自然科学基金资助项目(52574141) （52574141）
河南省国际科技重点合作项目(251111521200) （251111521200）
