![一种留小煤柱沿空掘巷围岩控制方法](/CN/2013/1/33/images/201310167156.jpg)
基本信息:
- 专利标题: 一种留小煤柱沿空掘巷围岩控制方法
- 专利标题(英):Gob-side entry driving surrounding rock control method using remaining small pillars
- 申请号:CN201310167156.4 申请日:2013-04-23
- 公开(公告)号:CN103244180A 公开(公告)日:2013-08-14
- 发明人: 苏海 , 张百胜 , 修成智 , 宁剑 , 刘海滨 , 姜精鹏 , 杨锐明 , 李安洪 , 郭志林 , 张玉东 , 刘臻保 , 李亚鹏
- 申请人: 山西潞安环保能源开发股份有限公司 , 太原理工大学
- 申请人地址: 山西省长治市高新开发区城北街65号
- 专利权人: 山西潞安环保能源开发股份有限公司,太原理工大学
- 当前专利权人: 山西潞安环保能源开发股份有限公司,太原理工大学
- 当前专利权人地址: 山西省长治市高新开发区城北街65号
- 主分类号: E21F17/00
- IPC分类号: E21F17/00 ; F42D3/04
The invention discloses a gob-side entry driving surrounding rock control method using remaining small pillars. The method includes: distributing blast holes of different angles and depths in a working face conveying chute during extraction on an upper region working face, preforming a weak face in a certain area of a basic roof to damage completeness of a basic roof rock stratum by deep hole presplitting, and allowing a suspension arch of the basic roof to break at predetermined positions under the action of roof pressure after extraction of the working face. Therefore, the length of the hanging arch of the lateral basic roof of a gob is shortened, gob lateral abutment pressure is reduced, roadway pressure is relieved during gob-side entry driving in a lower region using remaining small pillars, and maintenance of a roadway is facilitated.
公开/授权文献:
- CN103244180B 一种留小煤柱沿空掘巷围岩控制方法 公开/授权日:2015-04-22
IPC结构图谱:
E | 固定建筑物 |
--E21 | 土层或岩石的钻进;采矿 |
----E21F | 矿井或隧道中或其自身的安全装置,运输、充填、救护、通风或排水 |
------E21F17/00 | 在其他地方没有涉及到的用于矿井或隧道的方法或装置 |