[1]郭佐宁,黄永安,崔 峰,等.两硬浅埋条件下6.0 m采高工作面顶板运移规律数值分析[J].西安科技大学学报,2011,(01):1-5.
 GUO Zuo-ning,HUANG Yong-an,CUI Feng,et al.Numerical analysis of roof movement regularity of 6.0 m mining height with at the conditions of two-hard and shallow environment[J].Journal of Xi'an University of Science and Technology,2011,(01):1-5.
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两硬浅埋条件下6.0 m采高工作面顶板运移规律数值分析()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2011年01期
页码:
1-5
栏目:
出版日期:
2011-01-29

文章信息/Info

Title:
Numerical analysis of roof movement regularity of 6.0 m mining height with at the conditions of two-hard and shallow environment
文章编号:
1672-9315(2011)01-0001-05
作者:
郭佐宁1黄永安1崔 峰23朱世阳23曹建涛23
1.陕西煤化集团 张家峁矿业公司,陕西 神木 719300; 2.西安科技大学 能源学院,陕西 西安 710054; 3.教育部 西部矿井开采及灾害防治重点实验室,陕西 西安 710054
Author(s):
GUO Zuo-ning1HUANG Yong-an1CUI Feng23ZHU Shi-yang23CAO Jian-tao23
1.Zhangjiamao Coal Mine, Shaanxi Coal and Chemical Group Co.L td., Shenmu 719300, China; 2.College of Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 3.Key Laboratory of Western Mine & Hazard Prevention, Ministry of Education of China,Xi'an 710054,China
关键词:
两硬浅埋煤层 大采高 顶板运移 数值模拟
Keywords:
two-hard and shallow coal seam large mining height roof migration
分类号:
TD325+.1
文献标志码:
A
摘要:
大采高开采是特厚煤层实现高产高效的主要方式之一。为了确保张家峁煤矿浅埋坚硬煤层和顶板两硬条件下大采高工作面安全高效开采。基于室内岩石力学实验,获得了力学参数,采用三维有限差分计算程序—FLAC3D,计算并分析了浅埋、坚硬煤层顶板条件下大采高开采的顶板运移规律。研究表明,在6.0m大采高开采过程中,随着工作面的推进,超前支承应力不断变化。工作面超前支承压力影响范围变窄、压力峰值向工作面内移,超前支承压力均高于未受采动影响下的状态。这为现场安全开采提供了理论依据。
Abstract:
To secure the safe and efficient mining at the conditions of shallow and hard coal and roof in the first face of Zhangjiamao coal mine with large mining height, the mechanical parameters for accurately building 6.0 m mining height roof migration law that are adopted in numerical model is obtained by using rock mechanics experiments,and numerical calculation of 6.0 m mining height is done based on this parameter,numerical simulation analysis of shallow, hard coal seam and roof conditions, roof mining methods migration law.Research suggests that,in the process of mining method with 6.0m height, with the face forward, advanced abutment pressure in roof changes.The scope of abutment pressure becomes narrow,the peak shifts to the working face.The abutment pressure are higher than the value without the influence of mining at the scope of 25m away from rip line.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金(10772144); 教育部博士点基金(20096121110001)和陕西省重点实验室资助项目(09JS018) 通讯作者: 郭佐宁(1956-),男,陕西韩城人,高级工程师,主要从事煤矿开采技术研究.
更新日期/Last Update: 2011-01-29