[1]崔 峰,来兴平,曹建涛,等.急倾斜综放破碎顶煤流动规律数值模拟[J].西安科技大学学报,2010,(03):255-259270.
 CUI Feng,LAI Xing-ping,CAO Jian-tao,et al.Numerical simulation of broken top coal flow law by mechanized caving in steep[J].Journal of Xi'an University of Science and Technology,2010,(03):255-259270.
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急倾斜综放破碎顶煤流动规律数值模拟()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2010年03期
页码:
255-259270
栏目:
出版日期:
2010-03-29

文章信息/Info

Title:
Numerical simulation of broken top coal flow law by mechanized caving in steep
文章编号:
1672-9315(2010)03-0255-05
作者:
崔 峰12来兴平12 曹建涛12朱世阳12
1.西安科技大学 能源学院,陕西 西安 710054; 2.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):
CUI Feng12LAI Xing-ping12CAO Jian-tao12ZHU Shi-yang12
1. College of Energy Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054,China; 2. Key Laboratory of Western Mines and hazard Prevention, Ministry of Education of China, Xi'an 710054,China
关键词:
急倾斜煤层 高阶段 综放开采 PFC 顶煤流动规律
Keywords:
coal enterprises strategicr risk index system fuzzy comprehensive evaluation
分类号:
TD322
文献标志码:
A
摘要:
急倾斜特厚煤层综放工作面长度较短,提高水平分段高度可增产增效,但存在顶煤放出率低的问题。有必要采取措施弱化高阶段顶煤,研究弱化后煤体流动规律。苇湖梁煤矿急倾斜煤层高阶段顶煤超前注水-预裂爆破致裂弱化后,破碎顶煤具有散体介质特征。基于现场地质环境与开采条件分析,将弱化后顶煤视为非连续介质,应用颗粒流计算程序PFC(Particle Flow Code),对比分析了急斜煤层高阶段顶煤弱化前后随时间演化规律,为安全开采提供了理论依据。
Abstract:
This paper combined with the situation of the coal enterprises and identified strategy risk factors of the coal enterprises.Drawing on the existing literature, we establish a strategic risk evaluation index system in the coal enterprises which involves 4 first grade indexes including macroeconomic environment, industry environment, business resources,enterprise capacity and 37 secondary indexes,then determine the weight of indicators by using the method of analytic hierarchy process. In addition, we build a multi-level fuzzy comprehensive evaluation model in strategic risk of the coal enterprises to assess strategic risk rating.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助(10772144); 教育部博士点基金项目(20096121110001); 陕西省重点实验室项目(09JS018) 通讯作者: 来兴平(1971-),男,宁夏平罗人,博士,教授,主要从事岩体测试与采空区动力灾害控制技术研究.
更新日期/Last Update: 2010-03-29