|本期目录/Table of Contents|

[1]袁和勇,何启林,袁和旭.宜兴煤矿安全经济护巷煤柱宽度的研究确[J].中国安全生产科学技术,2013,9(9):54-58.[doi:10.11731/j.issn.1673-193x.2013.09.010]
 YUAN He yong,HE Qi lin,YUAN He xu.Determination on safe and economic midth of chain pillar in Yixing coal mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2013,9(9):54-58.[doi:10.11731/j.issn.1673-193x.2013.09.010]
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宜兴煤矿安全经济护巷煤柱宽度的研究确
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
9
期数:
2013年9期
页码:
54-58
栏目:
学术论著
出版日期:
2013-09-30

文章信息/Info

Title:
Determination on safe and economic midth of chain pillar in Yixing coal mine
作者:
袁和勇12何启林12袁和旭3
(1安徽理工大学能源与安全学院,安徽淮南232001;2安徽理工大学煤矿安全高效开采省部共建教育部重点 实验室,安徽淮南232001;3安徽省交通勘察设计院有限公司,安徽合肥230000)
Author(s):
YUAN He yong 12 HE Qi lin 12 YUAN He xu 3
(1 School of Energy and Safety, Anhui University of Science and Technology,Huainan Anhui 232001, China; 2.Key Laboratory of Safe and Effective Coal Mining of Education Ministry Jointly Funded by Anhui Province and Education Ministry  of China,Huainan A
关键词:
小煤柱护巷护巷煤柱宽度FLAC3D固瑞特GRT-201
Keywords:
small coal pillar roadway protection width of chain pillars FLAC3D GRT201
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2013.09.010
文献标志码:
A
摘要:
为节省资源,留最窄护巷煤柱,在借用FLAC3D模拟软件掌握不同护巷煤柱宽度下巷道围岩应力应变后,结合模拟的结果和实验室试验新材料GRT-201加固后的煤岩体强度指标,最终确定煤柱留设宽度为2m,较正常煤柱宽度留设减小了20多米。现场操作后巷道的变形率控制在5%以内,大大降低留设煤柱宽度的同时保证了工作面的正常接替和安全回采
Abstract:
In order to save resources and keep the minimum width of chain pillar, FLAC3D simulation software was applied to master the stress and strain of roadway surrounding rock under different width of chain pillar. Combining with the results of simulation and laboratory test on the rock mass strength index after reinforcement, by new material of GRT  201 the coal pillar width was finally determined to be 2 m, which reduced more than 20 meters compared with the normal width of coal pillar design. The roadway deformation rate after onsite operation was controlled to be less than 5%, which greatly reduces the coal piller midth, at the same time ensures the normal replacement and safety mining of the working face.

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更新日期/Last Update: 2013-09-30