Surrounding rock control of gob-side entry driving with narrow coal pillar and roadway side sealing technology in Yangliu Coal Mine

被引:46
作者
Zha Wenhua [1 ]
Shi Hao [1 ]
Liu San [1 ]
Kang Changhao [1 ]
机构
[1] Anhui Univ Sci & Technol, Sch Min & Safety Engn, Key Lab Safe & Effect Coal Min, Minist Educ, Huainan 232001, Peoples R China
基金
中国国家自然科学基金;
关键词
Narrow coal pillar; Gob-side entry driving; Surrounding rock control; Roadway side sealing technology;
D O I
10.1016/j.ijmst.2017.07.023
中图分类号
TD [矿业工程];
学科分类号
0819 ;
摘要
Gob-side entry driving can increase coal recovery ratio, and it is implied in many coal mines. Based on geological condition of 10416 working face tailentry in Yangliu Coal Mine, the surrounding rock deformation characteristics of gob-side entry driving with narrow coal pillar is analysed, reasonable size of coal pillar and reasonable roadway excavation time after mining are achieved. Surrounding rock control technology and effective roadway side sealing technology are proposed and are taken into field practice. The results showed that a safer and more efficient mining of working face can be achieved. In addition, results of this paper also have important theoretical significance and valuable reference for surrounding rock control technology of gob-side entry driving with narrow coal pillar under special geological condition. (C) 2017 Published by Elsevier B.V. on behalf of China University of Mining & Technology.
引用
收藏
页码:819 / 823
页数:5
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