[1]杨相海,张 杰,余学义.强制放顶爆破参数研究[J].西安科技大学学报,2010,(03):287-290323.
 YANG Xiang-Hai,ZHANG Jie,YU Xue-yi.Blasting parameter of compulsive roof cave-inCorresponding[J].Journal of Xi'an University of Science and Technology,2010,(03):287-290323.
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强制放顶爆破参数研究()
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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:
287-290323
栏目:
出版日期:
2010-03-29

文章信息/Info

Title:
Blasting parameter of compulsive roof cave-inCorresponding
文章编号:
1672-9315(2010)03-0287-04
作者:
杨相海1张 杰2余学义2
1.陕西能源职业技术学院 能源工程系,陕西 咸阳 712000; 2.西安科技大学 能源学院, 陕西 西安 710054
Author(s):
YANG Xiang-Hai1ZHANG Jie2YU Xue-yi2
1.Dept. of Energy and Engineering, Xianyang Vocational Technical College,Xianyang 712000, China; 2.College of Energy Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
关键词:
非坚硬顶板 浅埋煤层 强制放顶 爆破参数
Keywords:
shallow seam non-hardy roof compulsive roof cave-in blasting parameters
分类号:
TD327
文献标志码:
A
摘要:
榆神府矿区煤层顶板属于非坚硬岩层,但由于工作面初次来压步距很大,单体液压支柱无法抗拒覆岩整体切落和大面积垮落压力而容易引发大面积垮落灾变。数值模拟分析表明,非坚硬顶板工作面初次来压步距可以通过深孔和浅孔强制放顶减小。通过数值模拟和实际开采条件分析,提出了采用深浅孔结合进行强制放顶预防大面积垮落灾变的方法。得到了炮眼直径与最小抵抗线的关系,确定了非坚硬顶板强制放顶的爆破参数,为避免顶板大面积垮落灾变提供了可靠依据。
Abstract:
The mechanics intensity in the Yu-Sheng Coalfield is not great, it belongs to the non-hardy roof. But the main roof at the first weighting is very big. The individual jacks can not dispute the pressure which is caused by the over burden's holistic collapse and the massive collapse of the main roof, it easily initiates the working face always emerge massive collapse catastrophe. Numerical simulation indicates it is feasible nature to reduce collapse distance at the first time in the face with deep and shallow blasting. Through numerical simulation and mining analysis, the compulsive roof cave-in method to avoid massive collapse catastrophe is brought forward. The relationship between the minimum resistance line and the diameter is obtained, and the reasonable blasting parameters is confirmed, providing a reliable basis to avoid massive collapse catastrophe.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(40572155); 陕西省教育厅专项科研计划项目(09JK599); 西安科技大学博士启动金项目(200801) 通讯作者: 杨相海(1965-),男,陕西澄城人,副教授,主要从事矿山压力及岩层控制研究和教学工作.
更新日期/Last Update: 2010-03-29