[1]伍堂锐,叶青,柳伟.煤岩体巷道壁面钻孔减震吸能性能研究[J].中国安全生产科学技术,2017,13(4):81-86.[doi:10.11731/j.issn.1673-193x.2017.04.014]
WU Tangrui,YE Qing,LIU Wei.Research on shock absorption and energy absorption performance of wall borehole in coal and rock roadway[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(4):81-86.[doi:10.11731/j.issn.1673-193x.2017.04.014]
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煤岩体巷道壁面钻孔减震吸能性能研究
WU Tangrui,YE Qing,LIU Wei.Research on shock absorption and energy absorption performance of wall borehole in coal and rock roadway[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(4):81-86.[doi:10.11731/j.issn.1673-193x.2017.04.014]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 13
- 期数:
- 2017年4期
- 页码:
- 81-86
- 栏目:
- 现代职业安全卫生管理与技术
- 出版日期:
- 2017-04-30
文章信息/Info
- Title:
- Research on shock absorption and energy absorption performance of wall borehole in coal and rock roadway
- 文章编号:
- 1673-193X(2017)-04-0081-06
- Keywords:
- wall borehole; shock absorption and energy absorption; gas explosion; theoretical analysis; numerical simulation
- 分类号:
- TD712
- 文献标志码:
- A
- 摘要:
- 为了掌握瓦斯爆炸冲击载荷在煤岩巷道壁面钻孔下的传播衰减规律，揭示煤岩巷道壁面钻孔减震吸能机理，提高巷道系统的安全稳定性能，基于一维平面应力波理论和节理刚度模型分析了煤矿井下巷道围岩钻孔的减震吸能机理，解释了煤岩壁面钻孔的存在对应力波传递的减弱和阻隔作用。为了深入研究巷道壁面钻孔的减震吸能性能，利用ANSYS/LS- DYNA建立方形巷道模型，模型壁面设置有钻孔，针对巷道右壁面和顶板布置相应监测点，对瓦斯爆炸冲击载荷作用下巷道壁面钻孔的减震吸能性能进行了数值模拟。结果表明：由于介质的非连续性和不同介质之间特性存在差异，煤岩体巷道壁面钻孔有效消减了钻孔后煤岩体质点中波的强度及速度，具有一定的减震吸能作用。研究煤岩巷道壁面钻孔在冲击载荷作用下的减震吸能性能，为研究瓦斯爆炸冲击载荷对巷道系统安全性和稳定性提供依据。
- Abstract:
- In order to master the propagation attenuation laws of gas explosion impact load in the wall borehole of coal and rock roadway, reveal the shock absorption and energy absorption mechanisms of wall borehole, and improve the safety and stability performance of roadway system, the shock absorption and energy absorption mechanisms of the surrounding rock borehole in underground roadway of coal mine were analyzed based on the one-dimensional plane stress wave theory and the joint stiffness model, then the weakening and blocking effects of the existence of borehole in coal and rock wall on the stress wave transmission were explained. To further study the shock absorption and energy absorption performance of wall borehole, a square roadway model was built by using ANSYS/LSDYNA. The borehole was set on the wall in the model, and the relevant monitoring points were laid on the right wall and roof of the roadway, then the numerical simulation on the shock absorption and energy absorption performance of wall borehole in roadway under the effect of gas explosion impact load was carried out. The results showed that due to the discontinuity of the medium and the difference in the characteristics of different medium, the wall borehole in coal and rock roadway effectively reduced the strength and velocity of the wave in the particle of coal and rock body after drilling, with a certain shock absorption and energy absorption effect. It can provide the basis for the study on safety and stability of roadway system under the gas explosion impact load.
参考文献/References:
［1］中国能源中长期发展战略研究项目组.中国能源中长期（2030、2050）发展战略研究［M］.北京：北京科学出版社,2011.
［2］叶青，林柏泉.受限空间瓦斯爆炸传播特性［M］.徐州:中国矿业大学出版社,2012.
［3］http://news.ifeng.com/a/20161101/50187981_0.shtml
［4］文霞,姚安林,陈谦,等. 隧道并行输气管道爆炸对邻管的冲击效应分析［J］. 中国安全生产科学技术,2017(1):156-162.
WEN Xia，YAO Anlin，CHENG Qian，et al. Analysis on impact effect of gas pipeline explosion to adjacent pipeline for parallel pipeline in tunnel ［J］.Journal of Safety Science and Technology, 2017(1):156-162.
［5］蔡路军，马建军.预裂爆破减震机理及效果分析［J］.中国矿业，2005，14（5）：56-58.
CHAI Lujun，MA Jianjun.The shock absorption mechanism and its effect analysis of presplitting blasting［J］. CHINA MINING MAGAZINE,2005，14（5）：18-21.
［6］徐连满，潘一山，李忠华，等．人工调控围岩防冲减振数值研究［J］． 煤炭学报，2014，39(5): 829-835．
XU Lianman，PAN Yishan，LI Zhonghua，et al．Numerical research onsurrounding rock rockburst prevention anddamping by artificial regulation［J］．Journal of China Coal Society，2014，39(5): 829-835．
［7］张志波，李春军，李红勇，等．气泡帷幕在水下爆破减震工程中的应用［J］.爆破,2003,20(2): 75-76．
ZHANG Zhibo，LI Chunjun，LI Hongyong, et al. Application of air bubble purdah in the damping measure in the underwater blasting［J］.Blasting,2003,20 (2 ): 75-76．
［8］樊自建，沈兆武，马宏昊，等.空气隔层对水中冲击波衰减效果的实验研究［ J］.中国科学技术大学学报,2007,37(10): 1306-1311.
FAN Zijian，SHEN Zhaowu，MA Honghao, et al. Experimental study on attenuation of underwater shock wave by air inter layer［J］.Journal of University of Science and Technology of China,2007, 37(10): 1306-1311.
［9］徐平，夏唐代，周新民．单排空心管桩屏障对平面 SV波的隔离效果研究［J］．岩土工程学报,2007(1): 131-136．
XU Ping，XIA Tangdai，ZHOU Xinmin．Study on effect of barrier of a row of hollow pipe piles on isolation of incident plane SV waves［J］．Chinese Journal of Geo Technical Engineering,2007(1): 131-136．
［10］施红辉，张晓娜，章利特.激波驱动的气固两相流的动态压力测量 ［J］. 力学学报, 2010, 42(3):407-414.
SHI Honghui，ZHANG Xiaona，ZHANG Lite. Pressure measurement of gas-solid two-phase flow driven by shock wave ［J］. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(3): 407-414.
［11］ 易长平，陈明，卢文波,等．减震沟减震的数值模拟［J］．武汉大学学报,2005,38(1): 49-52．
YI Changping，CHEN Ming，LU Wenbo,et al．Numercial simulation for damping effect of damping ditch［J］. Engineering Journal of Wuhan University,2005,38(1): 49-52．
［12］ 王礼立.应力波基础［ M］.北京:国防工业出版社,2005: 208-210.
［13］ 王华．矿井多元可燃性气体爆炸特性实验及数值模拟研究［D］．西安:西安科技大学,2009．
［14］ 张秀华，王钧，赵金友,等.室内燃气爆炸冲击波的特性及传播规律［A］.第22届全国结构工程学术会议论文集［C］.2013:317-322.
［15］石少卿，康建功，江敏,等.ANSYS/LS-DYNA在爆炸与冲击领域内的工程应用［M］.北京:中国建筑工业出版社,2013.
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备注/Memo
- 备注/Memo:
- 国家自然科学基金项目(51374003，51004048)； 湖南省自然科学基金项目(2016JJ6038)；湖南省教育厅项目(E51523)
