Modeling Top Coal Disintegration in Thick Seams in Longwall Top Coal Caving

被引：20
|
作者：
Klishin, V. I. [1 ]
Fryanov, V. N. [2 ]
Pavlova, L. D. [2 ]
Opruk, G. Yu. [1 ]
机构：
[1] Russian Acad Sci, Inst Coal, Siberian Branch, Fed Res Ctr Cola & Coal Chem, Kemerovo 650065, Russia
[2] Siberain State Ind Univ, Novokuznetsk 654007, Russia
来源：
JOURNAL OF MINING SCIENCE | 2019年 / 55卷 / 02期
关键词：
Coal seam; seam roof; top coal; stresses; disintegration; finite element method; numerical experiment;
D O I：
10.1134/S1062739119025527
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The geomechanical model of the powered roof support-top coal-roof rock system is developed. For investigation of disintegration processes in top coal of thick seam, numerical modeling with finite element discretization of a study domain is carried out using the authors' original code. The computational experiment reveals stress distribution in rock mass, as well as evaluates position, shape and size on uncontrolled caving zones in top coal.
引用
收藏
页码：247 / 256
页数：10
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