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[1]赵华安,赵光明,孟祥瑞.断层影响下合理煤柱尺寸留设数值模拟分析[J].中国安全生产科学技术,2014,10(11):27-33.[doi:10.11731/j.issn.1673-193x.2014.11.005]
　ZHAO Hua-an,ZHAO Guang-ming,MENG Xiang-rui.Numerical simulation on rational size setting of coal pillar under influence of fault[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(11):27-33.[doi:10.11731/j.issn.1673-193x.2014.11.005]
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断层影响下合理煤柱尺寸留设数值模拟分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年11期
页码:
27-33
栏目:
学术论著
出版日期:
2014-11-30

文章信息/Info

Title:
Numerical simulation on rational size setting of coal pillar under influence of fault
作者:
赵华安; 赵光明; 孟祥瑞
(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)
Author(s):
ZHAO Hua-an;  ZHAO Guang-ming;  MENG Xiang-rui
(The Key Lab of Safe and High-efficiency Mining of Ministry of Education, Anhui University of Science and Technology, Huainan Anhui 232001, China)
关键词:
断层煤柱; 应力场; 位移; 塑性区; 数值模拟
Keywords:
fault pillar;  stress field;  displacement;  plastic zone;  numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.11.005
文献标志码:
A
摘要:
针对潘三矿1642(1)工作面回采受F24大型逆断层影响，利用FLAC3D软件研究留设不同尺寸断层煤柱情况下，应力场、位移场和塑性区演化规律，从而提出合理的断层煤柱留设尺寸。研究发现，随着煤柱的减小，应力集中区域逐渐向断层上盘转移；在断层影响下，顶板最大下沉位置发生在靠近断层一侧；当煤柱尺寸减小到一个临界值时，采空区上方塑性区发育高度会突然增大。留设合理的断层煤柱就是确保塑性区不与断层接触的情况下，尽量减小煤柱尺寸。
Abstract:
Aiming at the 1642 (1) working face of Pansan Mine influenced by F24 large thrust fault, the evolution laws of stress field, displacement field and plastic zone under different sizes of fault pillar were studied by using FLAC3D software, so as to put forward the rational setting size of fault coal pillar. It showed that, with the decrease of coal pillar, the stress concentration region gradually transfers to hanging side of fault. Under influence of fault, the location of roof maximum subsidence is near the fault; when the size of coal pillar reduces to a critical value, the height of plastic zone above goaf will suddenly increase. Setting rational fault pillar means make sure the plastic zone can't contact with fault, and then reduce the size of pillar.

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备注/Memo

备注/Memo:
国家自然科学基金项目（51374013/51174005/51134012）； 安徽省学术和技术带头人科研活动项目（DG073）； 高等学校博士学科点专项科研基金（20133415110006/20123415130001）
更新日期/Last Update: 2014-11-30