ANALYSIS OF CONTROLLED COAL DISCHARGE AT MINING OF THICK FLAT COAL SEAMS USING SELF-CAVING TECHNOLOGY

被引：0
|
作者：
Klishin, S., V [1 ]
机构：
[1] NA Chinakal Inst Min, Novosibirsk, Russia
来源：
PROCEEDINGS OF THE TULA STATES UNIVERSITY-SCIENCES OF EARTH | 2021年 / 4卷
关键词：
underground coal mining; thick coal seam; discharge technology; self-caving; rock mass; bulk material; numerical modeling; Discrete Element Method;
D O I：
10.46689/2218-5194-2021-4-1-389-399
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
By the Discrete Element Method in a three-dimensional formulation, a numerical analysis of the areal coal discharge during the underground mining of thick flat coal seams using self-caving technology has been carried out. The kinematic flow patterns of mined rock depending on the number and location of the outlet openings are given, the zones of their mutual influence are determined. The change of coal extraction indicators depending on the number of outlets and the distance between them are demonstrated.
引用
收藏
页码：389 / 399
页数：11
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