[1]李春杰,刘银先,高红彬,等.“三软”煤层采场覆岩运动及应力分布规律[J].西安科技大学学报,2015,(02):187-191.[doi:10.13800/j.cnki.xakjdxxb.2015.0209]
 LI Chun-jie,LIU Yin-xian,GAO Hong-bin,et al.Overlying strata movement and stress distribution law in the“three-soft”coal seam[J].Journal of Xi'an University of Science and Technology,2015,(02):187-191.[doi:10.13800/j.cnki.xakjdxxb.2015.0209]
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“三软”煤层采场覆岩运动及应力分布规律(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年02期
页码:
187-191
栏目:
出版日期:
2015-03-10

文章信息/Info

Title:
Overlying strata movement and stress distribution law in the“three-soft”coal seam
文章编号:
1672-9315(2015)02-0187-05
作者:
李春杰1刘银先2高红彬1许跃强1乔卿付2侯志强2
1.国投新登郑州煤业有限公司,河南 登封 452477;
2.河南理工大学 能源学院,河南 焦作 454000
Author(s):
LI Chun-jie1LIU Yin-xian2GAO Hong-bin1XU Yue-qiang1QIAO Qing-fu2HOU Zhi-qiang2
1.SDIC Xindeng Zhengzhou Coal Co.,Ltd.,Zhengzhou 452477,China;
2.School of Energy Science and Technology,Henan Polytechnic University,Jiaozuo 454000,China
关键词:
三软煤层 数值模拟 动压 沿空留巷
Keywords:
three-soft coal seam numerical simulation dynamic pressure gob-side entry retaining
分类号:
TD 323
DOI:
10.13800/j.cnki.xakjdxxb.2015.0209
文献标志码:
A
摘要:
新登矿区属于典型的豫西“三软”煤层,31061工作面采用综采放顶煤开采工艺,采高大,围岩扰动范围大,矿山压力显现与普通综采区别明显。为了掌握在上述条件下沿空留巷围岩应力及变形规律,通过数值模拟和理论分析相结合的方法,分析了避开动压沿空留巷方案的可行性,对31061工作面采场的覆岩运动及应力分布进行了数值模拟。结果表明:工作面后方的30 m内应力处于原岩应力范围内,后方30 m到70 m之间的巷道应力迅速增加,工作面后方70 m左右是覆岩垮落和应力分布稳定的区域。研究的结果对类似“三软”煤层采用避开动压沿空留巷的方案提供了宝贵的参考价值。
Abstract:
To study the surrounding rock deformation and the stress distribution of the gob-side entry,the first important thing is to master the overlying strata movement and stress distribution laws,which is the precondition of keeping the layout stable.To study the fesibility of preserving layout by avoiding dynamic pressure with large mining height of fully-mechanized top coal caving,the Layout 31061 at Xindeng Coal Mine was selected to the in-sit object,numerical simulation and theorical analysis were applied to study the whole process of the three-soft coal seam overlying strata's movement and stress.The result showed that original stress zone is 30 m behind the layout,while in the zone 30 m to 70 m behind the layout,the roadway near the goaf is seriously deformed because of the increasing stress.The most stable zone of the strata caving and stress distribution is 70 m behind the layout.

参考文献/References:

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备注/Memo

备注/Memo:
通讯作者:李春杰(1965-),男,河南登封人,工程师,E-mail:13838343188@163.com
更新日期/Last Update: 2015-03-15