西安科技大学学报2011，Vol.31Issue(3)：258-262,5.
煤矿上行开采覆岩运动规律研究
Overburden strata movement law for ascending mining of coal mine
张恩强 1张建忠 2刘金辉1
作者信息
- 1. 西安科技大学,能源学院,陕西,西安,710054
- 2. 教育部,西部矿井开采及灾害防治重点实验室,陕西,西安,710054
- 折叠
摘要
Abstract
To effectively exploit coal resources, ascending mining methods can be adopted for a coal mine with three layers. The motion characteristics of 5 -2coal overburden strata after being mined is obtained by the similar simulation experiments and numerical simulation. Combined with ways of “three zones” criterion, ratio method and rock balance method, the article found that caving zone height of 18m is 6 times as the mining height, the fractured zone height of 54m is 18 times as the mining height,the largest floor rock of the 4 -2 coal roof fracture is 10cm, with a crack is closed in the sink basin, concluding that the coal mine 4-2ascending mining is feasible.关键词
上行开采/相似模拟/上覆岩层Key words
ascending mining/ resemble simulation/ overlayer strata分类
矿业与冶金引用本文复制引用
张恩强,张建忠,刘金辉..煤矿上行开采覆岩运动规律研究[J].西安科技大学学报,2011,31(3):258-262,5.
