WEAKENING OF ROOF IN THICK FLAT-LYING COAL SEAMS BY IMPLEMENTING SEAM FLOOR LAYERED MINING METHODS

被引：0

作者：

Torro, V. O. ^{[1
]}

Remezov, A., V ^{[2
]}

Tatsienko, V. P. ^{[2
]}

Kuznetsov, E., V ^{[3
]}

机构：

[1] Kuzbass State Tech Univ, Mezhdurechensk Branch, Mezhdurechensk, Kemerovo Region, Russia

[2] Kuzbass State Tech Univ, Kemerovo, Russia

[3] Kuzbass State Tech Univ, Mezhdurechensk, Kemerovo Region, Russia

来源：

PROCEEDINGS OF THE TULA STATES UNIVERSITY-SCIENCES OF EARTH | 2020年 / 3卷

关键词：

Hard roof/poorly caving roof; roof rock; thick flat-lying seams; immediate mine roof cutting; roof weakening; seam floor layered mining methods; undercut layer; top coal; block deformations in undermining coal-bearing area; ungraded (pseudo-plastic) movement of undermined coal;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Heavy rock falls of coal roof cause increased pressure load on powered roof support systems during the mining of first layers in seams III and IV-V of Tomusinsky coal field. Moreover, the complex morphology of the seam creates additional difficulties in downward working of seam layers. All these factors call for validation of thick flat-lying coal seams mining methods that involve longwall face layered floor mining as an alternative to any kind of artificially induced weakening of coal roof.

引用

页码：201 / 209

页数：9