采矿与安全工程学报2017，Vol.34Issue(1)：39-46,8.DOI:10.13545/j.cnki.jmse.2017.01.006
充填采煤沿空留巷顶板下沉量预测分析
Forecast analysis of roof subsidence in gob-side entry for backfill mining
摘要
Abstract
For a relatively accurate prediction formula for roof subsidence in gob-side entry for backfill mining,With solid backfill workface gob-side entry 1316 as the engineering background,based on mul-tivariate regression analysis and the analysis of strata movement characteristic of the gob-side entry for backfill mining,with eight main influence factors of filling ratio,mining height,span roadway,en-try-side support strength,entry-side support width,hard rock thickness ratio,mining depth,and length.of working face,the roof subsidence in gob-side entry was analyzed through multivariate nonlinear re-gression analysis with orthogonal experimental design,FLAC3D numerical simulation,and SPSS and a nonlinear formula for predicting roof subsidence in gob-side entry is obtained.The predict formula was verified through field measurement in workface 1316,and the results have shown that the model pro-duced from multivariate regression analysis has a high accuracy.关键词
充填沿空留巷/顶板下沉量预测/充实率/巷旁支护体强度/巷旁支护体宽度Key words
gob-side entry retaining with solid backfilling/prediction for roof subsidence/filling ratio/entry-side support strength/entry-side support width分类
矿业与冶金引用本文复制引用
殷伟,陈志维,周楠,韩晓乐,李百宜..充填采煤沿空留巷顶板下沉量预测分析[J].采矿与安全工程学报,2017,34(1):39-46,8.基金项目
江苏省“青蓝工程”项目(苏教师(2014)23号) （苏教师(2014）
国家自然科学基金创新研究群体项目(51421003):2014年中国矿业大学重大项目培育工程专项项目(2014ZDPY02) （51421003）
