[1]罗浩,潘一山,李忠华,等.含水煤体失稳破坏电荷感应规律试验研究[J].中国安全生产科学技术,2015,11(2):36-41.[doi:10.11731/j.issn.1673-193x.2015.02.006]
LUO Hao,PAN Yi-shan,LI Zhong-hua,et al.Experimental study on charge induction law during instability and failure process of aqueous coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(2):36-41.[doi:10.11731/j.issn.1673-193x.2015.02.006]
点击复制
含水煤体失稳破坏电荷感应规律试验研究
LUO Hao,PAN Yi-shan,LI Zhong-hua,et al.Experimental study on charge induction law during instability and failure process of aqueous coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(2):36-41.[doi:10.11731/j.issn.1673-193x.2015.02.006]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 11
- 期数:
- 2015年2期
- 页码:
- 36-41
- 栏目:
- 学术论著
- 出版日期:
- 2015-02-28
文章信息/Info
- Title:
- Experimental study on charge induction law during instability and failure process of aqueous coal
- 关键词:
- 含水煤体; 矿井突水; 感应电荷; 微孔裂隙; Stern双电层模型
- Keywords:
- aqueous coal; water bursting in mine; induced charge; microporous fissure; Stern electrical double layer model
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为研究含水煤体失稳破坏过程中电荷感应规律，探寻应用电荷感应法监测煤矿突水灾害可行性，利用自主研制的电荷传感器对含水煤体单轴压缩过程进行电荷信号监测，分析煤体压缩过程中应力及电荷信号变化规律。试验结果表明：烘干煤体和含水煤体单轴加载过程中均有自由电荷产生，电荷信号呈脉冲状波动，通过分析含水煤体电荷信号变化规律同时统计煤体峰值强度前电荷脉冲数及脉冲宽度，从水通过削弱煤体强度进而影响电荷信号；Stern双电层中形成流动电荷，增强了煤体电荷信号；水的存在增加了煤体破裂面自由电荷存留时间三个方面总结了水对煤体电荷的影响机理。
- Abstract:
- In order to study the charge induction law during instability and failure process of aqueous coal, and explore the feasibility of applying charge induction method to monitor water bursting disasters in mine, the self-developed charge sensors were used to monitor charge signals of aqueous coal under uniaxial compression, and the variation laws of stress and charge signals in the process of coal compression were analyzed. The results showed that both of drying coal and aqueous coal will generate free charge under uniaxial loading process, and the charge signals fluctuate in a pulsed shape. By analyzing the variation laws of charge signals for aqueous coal and counting the pulse numbers and pulse width of charge before reaching the peak intensity of coal, the influence mechanism of water on coal charge were summarized from three aspects. (1) Water will influence the charge signal by weakening the strength of coal. (2) Flowing charge forms in Stern electrical double layer and enhances the charge signal of coal.(3) The presence of water increases the residence time of free charge on fracture surface of coal.
参考文献/References:
［1］刘德民, 连会青, 李飞. 封闭不良钻孔侧壁突水机理研究［J］. 中国安全生产科学技术, 2014, 10(5):74-77
LIU De-min, LIAN Hui-qing, LI Fei. Research on mechanism of water-inrush at side face of poor sealing borehole［J］. Journal of Safety Scince and Technology, 2014, 10(5):74-77
［2］尹尚先. 陷落柱防水煤柱留设对围岩变形影响的数值模拟［J］.煤炭学报, 2006, 31(2):179-182
YIN Shang-xian. Numerical simulation of influence of water barrier pillars for subsided column on rock failure in mining process［J］. Journal of China Coal Society, 2006, 31(2):179-182
［3］董书宁.对中国煤矿水害频发的几个关键科学问题的探讨［J］.煤炭学报, 2010, 35(1):66-71
DONG Shu-ning. Some key scientific problems on water hazards frequently happened in China’s coalmines［J］. Journal of China Coal Society, 2010, 35(1):66-71
［4］李飞, 王金安, 魏现昊. 承压水体上邻近断层开采底板岩层破裂与导水特征［J］.中国安全生产科学技术, 2014,10(5):68-73
LI Fei, WANG Jin-an, WEI Xian-hao. Fracture and water conducting characters of floor aquifer strata due to mining vicinity to the fault above confined aquifer［J］. Journal of Safety Scince and Technology, 2014, 10(5):68-73
［5］孙红福, 赵峰华, 张璐,等.重庆西部干旱区煤矿矿井水水质综合评价［J］.煤炭学报, 2014, 39(4):736-743
SUN Hong-fu, ZHAO Feng-hua, ZHANG Lu, et al. Comprehensive assessment of coal mine drainage quality in the arid area of western Chongqing［J］. Journal of China Coal Society, 2014, 39(4):736-743
［6］冯启言, 杨天鸿, 于庆磊,等. 基于渗流-损伤耦合分析的煤层底板突水过程的数值模拟［J］. 安全与环境学报, 2006, 6(3):1-4
FENG Qi-yan, YANG Tian-hong, YU Qing-lei, et al. Numerical simulation on water inrush from the seam floor based on the coupled analysis of seepage and damage［J］. Journal of Safety and Environment, 2006, 6(3):1-4
［7］潘一山, 罗浩, 唐治,等.煤岩体拉伸失稳破坏电荷感应规律研究［J］.岩石力学与工程学报, 2013, 32(7):1297-1303
PAN Yi-shan, LUO Hao, TANG Zhi, et al. Study of charge induction law of coal and rock mass during tensile instability and failure［J］. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(7):1297-1303
［8］罗浩, 潘一山, 赵扬锋,等.基于电荷监测技术预测矿山动力灾害试验研究［J］.中国安全科学学报, 2012, 22(8):98-103
LUO Hao, PAN Yi-shan, ZHAO Yang-feng, et al. Experimental research on mine dynamic disaster prediction based on charge monitoring technique［J］. China Safety Science Journal, 2012, 22(8):98-103
［9］潘一山, 罗浩, 肖晓春,等. 三轴条件下含瓦斯煤力电感应规律的试验研究［J］. 煤炭学报, 2012, 37(6):918-922
PAN Yi-shan, LUO Hao, XIAO Xiao-chun, et al. Experimental study on mechanical-charge induction law of coal containing gas under triaxial compression ［J］. Journal of China Coal Society, 2012, 37(6):918-922
［10］赵扬锋, 潘一山, 李国臻,等.岩石变形破裂过程中电荷感应信号的检测［J］.防灾减灾工程学报, 2010, 30(3):252-256
ZHAO Yang-feng, PAN Yi-shan, LI Guo-zhen, et al. Measuring of the charge-induced signal of rock during the deformation and fracture process［J］. Journal of Disaster Prevention and Mitigation Engineering, 2010, 30(3):252-256
［11］潘一山, 罗浩, 赵扬锋.电荷感应监测技术在矿山动力灾害中的应用［J］. 煤炭科学技术, 2013, 41(9):29-34
PAN Yi-shan, LUO Hao, ZHAO Yang-feng. Application of charge induction monitoring technology of mine dynamic disasters［J］. Coal Science and Technology, 2013, 41(9):29-34
［12］王恩元, 何学秋, 刘贞堂,等.煤岩动力灾害电磁辐射监测仪及其应用［J］.煤炭学报, 2003, 28(4):366-369
WANG En-yuan, HE Xue-qiu, LIU Zhen-tang, et al. Electromagnetic radiation detector of coal or rock dynamic disasters and its application［J］. Journal Of China Coal Society, 2003, 28(4):366-369
［13］杨超, 李学龙, 朱亚飞. 基于电磁辐射的矿井冲击地压区域监测预报研究［J］. 中国安全生产科学技术, 2013, 9(7):100-104
YANG Chao, LI Xue-long, ZHU Ya-fei. Research on regional monitoring and prediction for rock burst in mine based on electromagnetic radiation［J］. Journal of Safety Science and Technology, 2013, 9(7):100-104
［14］赵扬锋, 潘一山, 罗浩,等.矿井岩石变形破裂电荷感应试验研究［J］.中国安全科学学报, 2012, 22(10):107-113
ZHAO Yang-feng, PAN Yi-shan, LUO Hao, et al. Study on charge induction regularity in process of mines rock deformation and fracture［J］. China Safety Science Journal, 2012, 22(10):107-113
［15］何学秋, 王恩元, 聂百胜, 等. 煤岩流变电磁动力学［M］. 北京: 科学出版社, 2003
［16］郭德, 张秀梅, 石常省, 等.压强预处理对煤泥浮选效果的影响［J］.煤炭学报, 2011, 36(8):1365-1369
GUO De, ZHANG Xiu-mei, SHI Chang-sheng, et al. The effect of pressure-based pre-treat on the flotation efficiency of coal slurry ［J］. Journal of China Coal Society, 2011, 36(8):1365-1366
相似文献/References:
[1]马恒,刘超.矿井突水路径搜索算法与应用[J].中国安全生产科学技术,2015,11(11):35.[doi:10.11731/j.issn.1673-193x.2015.11.006]
MA Heng,LIU Chao.Searching algorithm of mine water inrush paths and its application[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(2):35.[doi:10.11731/j.issn.1673-193x.2015.11.006]
备注/Memo
- 备注/Memo:
- 国家重点基础研究发展计划“973”项目(2010CB226803) ；国家自然科学基金面上项目(11172121，51374123，51274114)
