西安科技大学学报2015，Vol.35Issue(6)：732-737,6.DOI:10.13800/j.cnki.xakjdxxb.2015.0610
充填开采上覆岩层移动变形研究
Research on filling mining overburden movement deformation
摘要
Abstract
In order to improve the effect of the overlying strata movement with filling mining and to find out the rules in the filling mining overburden movement,in the engineering background of Shanxi coking coal xinyang mine,the paper analyses three key factors of filling mining surface subsidence,roof-to-floor convergence before backfilling,the gap between the backfilling body and roof,and the compression a-mount of the backfilling body. The result shows the main ways to control the overlying strata movement are to increase the strength of filling body and the final compression ratio of backfilling materials. And more efficiency way is to change the final compression ratio of backfilling materials. This paper also a-dopts the numerical simulation analysis on overlying strata movement situation under different strength of filling body and the final compression ratio of backfilling materials,getting the subsidence curve under a certain compression ratio and establishing the formula about equivalent mining height,bedrock height, and the maximum vertical displacement with the help of regression analysis. This formula has a positive prospect to predict filling mining maximum ground deformation and to guide the rational filling.关键词
充填开采/岩层移动/数值模拟/回归分析Key words
filling mining/strata movement/numerical simulation/regression analysis分类
信息技术与安全科学引用本文复制引用
杨宝贵,杨捷,王玉凯,杨向向..充填开采上覆岩层移动变形研究[J].西安科技大学学报,2015,35(6):732-737,6.基金项目
"十一五"国家科技支撑计划资助项目(2009BAB48B02) （2009BAB48B02）
