|本期目录/Table of Contents|

[1]郭林杰,刘健,姜二龙,等.瓦斯压力对煤体爆破应力影响规律试验研究[J].中国安全生产科学技术,2014,10(10):29-34.[doi:10.11731/j.issn.1673-193x.2014.10.005]
 GUO Lin-jie,LIU Jian,JIANG Er-long,et al.Experimental study on stress of coal blasting influenced by gas pressure[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(10):29-34.[doi:10.11731/j.issn.1673-193x.2014.10.005]
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瓦斯压力对煤体爆破应力影响规律试验研究
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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10期
页码:
29-34
栏目:
学术论著
出版日期:
2014-10-31

文章信息/Info

Title:
Experimental study on stress of coal blasting influenced by gas pressure
作者:
郭林杰1刘健12姜二龙1吴海龙1
(1 安徽理工大学 能源与安全学院,安徽 淮南 232001; 2 安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室,安徽 淮南 232001)
Author(s):
GUO Lin-jie1 LIU Jian12 JIANG Er-long1WU Hai-long1
(1. College of Energy and Safety, Anhui University of Science and Technology, Huainan Anhui 232001, China; 2. Key Laboratory of Mine Safety and High Efficient Mining Jointly Built by Province and Education Ministry, Anhui University of Science and Technology, Huainan Anhui 232001, China)
关键词:
瓦斯压力煤体爆破数值模拟相似试验
Keywords:
gas pressure coal blasting numerical simulation similar experiment
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.10.005
文献标志码:
A
摘要:
为研究瓦斯压力对煤体爆破应力的影响规律,开展了不同瓦斯压力条件下煤体爆破试验,对煤体爆破应力进行测试与分析,并利用LS-DYNA3D模拟软件对试验结果进行了验证。结果表明:煤体中瓦斯压力的能够增加煤体爆破应力波峰值,应力波的作用时间延长大约200us;随着瓦斯压力增加,煤体爆破应力波峰值也随之增大,从而更利于煤体爆破裂纹的扩展;煤体中瓦斯压力对煤体爆破中远区影响较大,在爆破近区,瓦斯压力基本可以忽略; 当瓦斯压力存在时,煤体爆炸应力波均将出现两个完整的波形。
Abstract:
In order to study the stress of coal blasting with the effect of gas pressure, the coal blasting experiments under the conditions of different gas pressures were conducted, and the coal blasting stress were measured and analyzed. The LS-DYNA3D simulation software was applied to validate the experiment results. It showed that the existence of gas pressure increases the peak of coal blasting stress wave, and the prolonged action duration of the stress wave is about 200us. The greater the gas pressure, the greater peak of coal blasting stress wave, which is more conducive to the expansion of coal blasting crack. In the moderate or far region, the effect of gas pressure will be enhanced and increase the peak of coal blasting stress wave in varying degrees. In blasting near region, the effect of gas pressure can be largely ignored. With the existence of gas pressure, the coal blasting stress wave will appear 2 whole wave forms.

参考文献/References:

[1] 褚怀保,侯爱军,杨小林,等.含瓦斯煤体爆破裂纹扩展规律试验研究[J].采矿与安全工程学报,2012,29(6):894-898 CHU Huai-bao,HOU Ai-jun,YANG Xiao-lin,et al.Experimental study on regularity of blasting crack spread in a coal contained gas[J]. Journal of Mining & Safety Engineering, 2012,29(6):894-898
[2] 褚怀保,杨小林,梁为民,等.煤体爆破作用机理模拟试验研究[J].煤炭学报,2011,36(9):1451-1456 CHU Huai-bao,YANG Xiao-lin,LIANG Wei-min, et al.Experimental study on the mechanism of coal blasting simulation [J]. Journal of China Coal Society,2011,36(9):1451-1456
[3] 范天佑. 断裂力学基础[M].南京:江苏科学技术出版社, 1978
[4]石必明, 俞启香. 低透气性煤层深孔预裂控制松动爆破防突作用分析[J]. 建井技术, 2002, 23(5): 27-30
[5]邢书仁, 肖力, 张锦鹏. 煤层预裂爆破复合型宏观裂纹扩展的断裂理论分析 [J]. 中国煤炭, 2010, 10: 035 XING Shu-ren,XIAO Li, ZHANG Jin-peng.An analysis of fracture theory on the expansion of complex macroscopic cracks caused by pre-fracturing of coal seams[J].China Coal, 2010, 10: 035
[6]蔡峰, 刘泽功, 张朝举, 等. 高瓦斯低透气性煤层深孔预裂爆破增透数值模拟[J]. 煤炭学报, 2007, 32(5): 499-503 CAI Feng, LIU Ze-gong, ZHANG Chao-ju.Numerical simulation of improving permeability by deep-hole presplitting explosion in loose-soft and low permeability coal seam[J]. Journal of China Coal Society, 2007, 32(5): 499-503
[7] 龚敏, 熊本良, 王楚翰, 等. 穿层爆破各煤层动态应力分布与抽放效果探讨[J]. 岩石力学与工程学报, 2012, 31(A01): 2989-2996 GONG Min,XIONG Ben-liang,WANG Chu-han. Discussion on distribution of dynamic stress and gas draining efficiency in coal seams by blasting through layers of coal-rock[J]. Chinese Journal of Rock Mechanics and Engineering,2012,31(1):2899-2996
[8]戴俊.爆破工程[M].北京:机械工业出版社,2008
[9]索永录. 坚硬顶煤弱化爆破的宏观损伤破坏程度研究[J].岩土力学,2005,26(6):893-895 SUO Yong-lu. Study for macro-damage degree of weakening blast in hard top-coal [J]. Rock and Soil Mechanics,2005,26(6):893-895
[10] 郑福良. 含瓦斯煤体爆破裂隙发展规律的探讨[J]. 煤矿安全, 1997, 28(2): 23-26 ZHENG Liang-fu.The low of development of explosion fracture in gas coal[J]. Safety in Coal Mines, 1997, 28(2): 23-26

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2014-12-12