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科技导报
|研究论文
2012
, 30
(27) :
54
-57
兴泰煤矿二
1 煤层坚硬顶煤预裂爆破技术
全屏
南存全, 商佳新
作者信息
Presplit Blasting Technology for Hard Top Coal of Xingtai Coal Mine Second 1 Coal Seam
NAN Cunquan, SHANG Jiaxin
Affiliations
Institute of Mining, Liaoning Technical University, Fuxin 123000, Liaoning Province, China
出版时间: 2012-09-28
doi: 10.3981/j.issn.1000-7857.2012.27.008
文章导航
急倾斜坚硬厚煤层的开采方法是采矿技术所面临的难题之一。由于急倾斜坚硬厚煤层矿山压力显现不清楚,煤层顶板管理复杂,顶板事故多,回采率低等诸多因素的存在,使得矿井生产能力的提升及经济效益的提高受到束缚。兴泰煤矿二1 煤层具有煤质坚硬、倾角大、瓦斯高、煤层厚等显著特点。因此,提高坚硬顶煤的冒放性是兴泰煤矿放顶煤开采所面临的主要技术难题。本文在对坚硬顶煤破碎特点分析的基础上,结合兴泰煤矿二1 煤层工程地质条件,提出了提高二1 煤层坚硬顶煤冒放性的主要技术措施及三种预裂爆破方案。通过现场试验,成功的解决了二1 煤层坚硬顶煤难以放出的问题,取得了预期的效果。实现了急倾斜坚硬厚煤层放顶煤开采技术的突破,对中国急倾斜坚硬厚煤层的开采具有指导意义。
The mining of a sharply inclined hard thick coal seam is one of the difficult technical problems in the mining technology. In the sharply inclined hard thick coal seam, the mining pressure does not show clearly and the coal seam roof management is complex, in addition to roof accidents, low stopping rate and other factors, which makes the improvement of the mine production and the economic benefits very difficult. The Xingtai coal mine of second 1 coal seam has remarkable characteristics of hard coal, large dip angle of coal seam, high mashgas and thick seam. Thus, the main technical problems that the Xingtai Coal Mine has to face, are the improvement of hard top-coal caving characteristics. This paper, on the basis of analysis of the broken characteristics of hard top-coal, and combined with the coal seam's second 1 engineering geological conditions, suggests some major technical measures and three kinds of presplit blasting schemes of improving the two 1 coal seam hard top-coal caving characteristics. Through the field test, the problem that the two 1 coal seam hard top-coal is difficult to release is successfully solved, and the desired effect is achieved.
hard thick coal seam
/
sharp inclined
/
caving characteristics
/
presplit blasting
南存全;商佳新.
兴泰煤矿二1 煤层坚硬顶煤预裂爆破技术.
科技导报,
2012
, 30
(27)
: 54
-57
.
DOI: 10.3981/j.issn.1000-7857.2012.27.008
NAN Cunquan;SHANG Jiaxin.
Presplit Blasting Technology for Hard Top Coal of Xingtai Coal Mine Second 1 Coal Seam[J].
Science & Technology Review ,
2012
, 30
(27)
: 54
-57
.
DOI: 10.3981/j.issn.1000-7857.2012.27.008
2012年第30卷第27期
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文章信息
doi: 10.3981/j.issn.1000-7857.2012.27.008
接收时间：2012-03-05
首发时间：2012-09-28
出版时间：2012-09-28
收稿日期：2012-03-05
修回日期：2012-07-23
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2012.27.008
引用本文
BibTeX
2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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