|本期目录/Table of Contents|

[1]赵宁,戴广龙,黄文尧,等.深孔预裂爆破强制放顶技术的研究与应用[J].中国安全生产科学技术,2014,10(4):38-42.[doi:10.11731/j.issn.1673-193x.2014.04.006]
　ZHAO Ning,DAI Guang long,ZHANG Rui.Research and application of deep hole presplitting blasting forced caving technology[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(4):38-42.[doi:10.11731/j.issn.1673-193x.2014.04.006]
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深孔预裂爆破强制放顶技术的研究与应用
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年4期
页码:
38-42
栏目:
学术论著
出版日期:
2014-04-28

文章信息/Info

Title:
Research and application of deep hole presplitting blasting forced caving technology
作者:
赵宁1; 戴广龙1; 黄文尧1; 张瑞2
（1安徽理工大学 能源与安全学院，安徽淮南232001; 2淮南矿业集团顾桥矿，安徽淮南232001）
Author(s):
ZHAO Ning 1;  DAI Guang long 1;  ZHANG Rui 2
(1Anhui university of science and technology Energy and security institute, Huainan Anhui 232001, China; 2 Huainan Mining Group Corporation，Huainan Anhui 232001，China)
关键词:
深孔; 爆破; 放顶; 瓦斯; 坚硬顶板; 浓度
Keywords:
deep hole;  blasting;  caving;  gas;  hard roof;  concentration
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.04.006
文献标志码:
A
摘要:
针对顾桥矿坚厚硬顶板会出现大面积悬顶的情况，且大面积悬露的顶板突然断裂后有压倒支架、产生强冲击瓦斯风暴的可能性，故在顾桥矿1123（1）工作面实施深孔预裂爆破弱化坚硬顶板技术的研究。通过试验表明：顾桥矿1123（1）工作面在实施深孔预裂爆破弱化坚硬顶板后，顶板的初次垮落步距从预测的45-50m减小到273m左右，支柱承受压力在可以接受范围内，未出现顶板强烈来压压倒支架的情况；回风巷中瓦斯浓度控制在06%以下，抽采瓦斯量稳定在70m3/min，未出现瓦斯超限和煤与瓦斯突出的情况。
Abstract:
For the hard and thick roof or Guqiao mine may happen large overhang, and the suspension of roof has the possibility of gas storm and a strong impact after the fracture, so in the 1123 (1) working face of Guqiao coal mine, the deep hole presplitting blasting weakening hard roof technology was studied. The experiment result showed that after weakening the hard roof in 1123 (1) working face of guqiao coal mine by the deep hole presplitting blasting, the first caving step distance 〖JP2〗 of the roof decreased from the prediction value of 45  50 m to 273 m or so, the bealing pressure of the pillars were in the acceptable range, and the situation of overwhelming support by strong pressure of roof did not appeared. The gas concentration in the air return way was controlled under 06%, and the gas drainage quantity was stable in 70m3 / min, and the gas overrun and coal and gas outburst did not occurred.

参考文献/References:


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更新日期/Last Update: 2014-04-28