Caving mechanisms of loose top-coal in longwall top-coal caving mining method

被引：80
|
作者：
Wang, Jiachen [1 ]
Yang, Shengli [1 ]
Li, Yang [1 ]
Wei, Like [2 ]
Liu, Haohao [1 ]
机构：
[1] China Univ Min & Technol, Coll Resources & Safety Engn, Beijing 100083, Peoples R China
[2] China Coal Res Inst, Inst Mine Safety Technol, Beijing, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2014年 / 71卷
基金：
中国国家自然科学基金;
关键词：
Top-coal caving; The mechanism of the top-coal caving; The top-coal recovery ratio; The marker method;
D O I：
10.1016/j.ijrmms.2014.04.024
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The top coal caving mining method, developed steadily in the past two decades, has become the main method for thick seam coal mining in China. In recent years, the core research areas in the top-coal caving mining are the mechanisms of top-coal caving and the improvement of top-coal recovery ratio. In this paper, the mechanisms of the top-coal caving are illustrated by a large number of physical simulation experiments and numerical modelings of actual cases. The marker method, which has sufficient accuracy to calculate the top-coal recovery ratio, is also described in detail. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：160 / 170
页数：11
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