采矿与安全工程学报2017，Vol.34Issue(5)：838-844,7.DOI:10.13545/j.cnki.jmse.2017.05.003
近距离下保护层矸石充填开采可行性理论分析
Theoretical feasibility study on backfilling with gangue in close low protective seam mining
摘要
Abstract
In order to improve the applicability of low protective seam mining, backfill mining is ap-plied to low protective seam mining. The roof deformation law is obtained by using theoretical analysis on the roof movement in backfill coal seam mining with gangue. The theoretical criterion of applying the low protective seam mining is established based on the premise that up coal seam floor maintaining stability. Based on the project of low protective seam mining in a coal mine located in Guizhou, it is de-signed the parameters of low coal seam backfill mining. Impacts of the low coal seam mining on up seam are analyzed. The result shows that not only the low protective coal seam can be mined out with-out any influence on the up coal seam, but also the fractures in up coal seam could be developed well, if reasonable backfilling parameters are chosen for the low coal seam mining.关键词
弹性地基理论/矸石充填开采/下保护层开采/岩块失稳判据Key words
elastic-foundation theory/mining and backfill with gangue/low protective coal mining/instability criterion of rock block分类
矿业与冶金引用本文复制引用
周泽,朱川曲,李青锋,欧懿..近距离下保护层矸石充填开采可行性理论分析[J].采矿与安全工程学报,2017,34(5):838-844,7.基金项目
国家自然科学基金项目(51474104) （51474104）
湖南省煤矿安全开采技术重点实验室开放基金项目(201403) （201403）
