[1]张建华,伍永平,樊永宁,等.大倾角“三软”富含水大采高工作面围岩运动规律[J].西安科技大学学报,2010,(04):388-392.
 Yong ning,LV Zhao hai,LI Li bo.Rock movement regularity of large mining height face in deep threesoft and richinwater coal seam[J].Journal of Xi'an University of Science and Technology,2010,(04):388-392.
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大倾角“三软”富含水大采高工作面围岩运动规律()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2010年04期
页码:
388-392
栏目:
出版日期:
2010-07-11

文章信息/Info

Title:
Rock movement regularity of large mining height face in deep threesoft and richinwater coal seam
文章编号:
1672-9315(2010)04-0388-05
作者:
张建华12伍永平13樊永宁12吕兆海2李立波2
1.西安科技大学 能源学院,陕西 西安 710054; 2.神华宁夏煤业集团,宁夏 银川 751401;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):
Yong ning12LV Zhao hai2LI Li bo2
1.College of Energy Science and Engineering, Xi′an University of Science and Technology, Xi′an 710054,China; 2.ShenhuaNingxia Coal Ltd., Yinchuan 751401,China;3.Key Laboratory of Western Mine & Hazard Prevention,China Ministry of Education, Xi′an 710054,China
关键词:
“三软”富水煤层 大采高 数值模型 围岩运动规律
Keywords:
threesoft and richinwater coal seam large height mining numerical model law of adjacent rock
分类号:
TD325
文献标志码:
A
摘要:
掌握复杂条件下大倾角大采高工作面围岩运动规律是保证安全回采的前提条件。以宁东矿区清水营矿大倾角“三软”富含水大采高工作面为背景,根据现场勘查、室内实验和现场监测成果,建立了基于倾角变化的FLAC3D数值模型,计算分析了开采扰动过程中大倾角大采高覆岩应力与变形演化的特殊规律,确定了工作面周期来压步距为10~15 m左右,为安全开采提供了科学依据。
Abstract:
Rock movement rule of large mining height face in deep coal seam under complex environment is the key technology to ensure safe mining. Based on large mining height face of Qingshuiying coal mine in Ningdong region which is deep threesoft and richinwater coal seam, combined with insite investigation, laboratory test and file monitoring, the numerical model of FLAC3D is established in which the coal seam inclination angle is variable, and the stressdisplacement evolution laws of deep and larger mining height face′s adjacent rock during advancing and disturbance is analyzed. The periodic weighting pace distance is defined in 10~15 m before face. All these studies provide scientific basis for safe mining.

参考文献/References:

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LAI Xing ping, WU Yong ping, CAO Jian tao, et al. Experiment on rock mass deformation of large scale 3D simulation in complex environment[J]. Journal of China Coal Society, 2010, 35(1):31-34.

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备注/Memo

备注/Memo:
收稿日期: 2010-03-08 基金项目: 国家自然科学基金项目(10772144); 教育部博士点基金项目(20096121110001); 教育部新世纪优秀人才支持计划资助项目(NCET-04-972); 陕西省教育厅重点实验室资助项目(09JS018) 通讯作者: 张建华(1964-),男,宁夏吴忠人,博士研究生,主要从事煤炭开采技术研究.
更新日期/Last Update: 2010-07-11