| Citation: |
XU Yanhui，CHENG Xiaojiao，WEN Hu，et al. Research on spontaneous combustion law and precise prevention and control technology of extra thick residual coal in multi layered staggered mining[J]. Coal Science and Technology，2024，52（S2）：101−113. DOI: 10.12438/cst.2023-1075
|
The average thickness of VI coal seam in Barapukuria mine in Bangladesh is 36 m. The damage reduction mining mode with layered staggered arrangement is adopted. The geological conditions are complex, the original ground temperature is high, and the geological disasters such as spontaneous combustion fire, water damage, heat damage and rock burst are serious. In view of the environmental conditions conducive to coal spontaneous combustion, such as large amount of residual coal in goaf, many three-dimensional air leakage and oxygen supply channels, water loss of residual coal and high ground temperature in multi-layer staggered mining of Mengba Mine, firstly, through the theoretical superposition of “three zones” observation of coal spontaneous combustion in goaf, air leakage channel analysis, tension fracture zone and fault, the range and risk level of spontaneous combustion danger area in multi-layer staggered mining are divided, and the minimum safe advance speed of working face is determined. Secondly, through the programmed temperature rise experiment of different water-bearing coal samples and Graham coefficient, the coal spontaneous combustion marker gas, characteristic temperature threshold, early warning index and threshold are obtained. Combined with the distribution characteristics of goaf, goaf and roadway dangerous area, the monitoring and early warning method of “space-time-classification-adaptation” for spontaneous combustion dangerous area in multi-layer mining is proposed. According to the characteristics of layered staggered mining in Mengba Mine and many years of field practice, the precise prevention of “three-dimensional plugging, segmented isolation, regional nitrogen injection” in dangerous areas and the emergency control technology of “traceability control leakage, reduction dilution, directional drainage” of catastrophic gas are formed. The field application results show that the implementation of this technology ensures the safe unsealing of the 1110 working face of the first layer, and liberates 800,000 tons of stagnant coal. In addition, the oxidation process of residual coal in the goaf during the normal mining process of each stratified working face is effectively controlled. The CO in the goaf on the air inlet side is 0, and the CO in the goaf on the air return side is rapidly reduced to 0 in a short time, which successfully guarantees the safe mining of Mengba Mine for more than ten years.
| [1] |
邓军,马威,张辛亥,等. 复采工作面采空区浮煤自燃火灾的治理[J]. 煤炭科学技术,2010,38(2):43−45,63.
DENG Jun,MA Wei,ZHANG Xinhai,et al. Spontaneous combustion fire disaster control of abandon coal in goaf of second mining coal face[J]. Coal Science and Technology,2010,38(2):43−45,63.
|
| [2] |
梁运涛,侯贤军,罗海珠,等. 我国煤矿火灾防治现状及发展对策[J]. 煤炭科学技术,2016,44(6):1−6,13.
LIANG Yuntao,HOU Xianjun,LUO Haizhu,et al. Development countermeasures and current situation of coal mine fire prevention & extinguishing in China[J]. Coal Science and Technology,2016,44(6):1−6,13.
|
| [3] |
文虎,程小蛟,许延辉,等. 松散煤体自然发火过程氡析出及运移规律[J]. 煤炭学报,2019,44(9):2816−2823.
WEN Hu,CHENG Xiaojiao,XU Yanhui,et al. Law of radon precipitation and migration in loose coal during spontaneous combustion process[J]. Journal of China Coal Society,2019,44(9):2816−2823.
|
| [4] |
曾强,聂静,蒲燕. 地下煤火土壤典型重金属分布特征[J]. 煤炭学报,2016,41(8):1989−1996.
ZENG Qiang,NIE Jing,PU Yan. Characteristics of the distribution of typical heavy metals in the soils of underground coal fire[J]. Journal of China Coal Society,2016,41(8):1989−1996.
|
| [5] |
刘英学,邬培菊. 水对防治煤炭自燃的作用及注水周期的研究[J]. 中国安全科学学报,2000,10(6):29−34. doi: 10.3969/j.issn.1003-3033.2000.06.007
LIU Yingxue,WU Peiju. Effect of water on controlling the spontaneous combustion of coal and investigation on the cycle of water pouring[J]. China Safety Science Journal,2000,10(6):29−34. doi: 10.3969/j.issn.1003-3033.2000.06.007
|
| [6] |
许延辉,金永飞,李海涛,等. 浅埋煤层近距离采空区隐蔽火源探测及控制技术[J]. 煤矿安全,2014,45(9):144−147.
XU Yanhui,JIN Yongfei,LI Haitao,et al. Hidden fire detection and control technology in shallow distance seam group gob[J]. Safety in Coal Mines,2014,45(9):144−147.
|
| [7] |
白刚,姜延航,周西华,等. 采空区自燃隔离墙与氮气联合防火技术[J]. 辽宁工程技术大学学报(自然科学版),2021,40(3):206−213. doi: 10.11956/j.issn.1008-0562.2021.03.003
BAI Gang,JIANG Yanhang,ZHOU Xihua,et al. Composite fire prevention technology of goaf wall and nitrogen[J]. Journal of Liaoning Technical University (Natural Science),2021,40(3):206−213. doi: 10.11956/j.issn.1008-0562.2021.03.003
|
| [8] |
李珍宝,王凤双,魏高明,等. 液态CO2溶浸无烟煤的氧化动力学特征[J]. 煤炭学报,2020,45(S1):330−335.
LI Zhenbao,WANG Fengshuang,WEI Gaoming,et al. Oxidation reaction and kinetics of anthracite in filtrated by liquid CO2[J]. Journal of China Coal Society,2020,45(S1):330−335.
|
| [9] |
任万兴,郭庆,左兵召,等. 近距离易自燃煤层群工作面回撤期均压防灭火技术[J]. 煤炭科学技术,2016,44(10):48−52,94.
REN Wanxing,GUO Qing,ZUO Bingzhao,et al. Pressure balanced fire prevention and control technology during equipment withdrawing period of coal mining face in easy spontaneous combustion contiguous seams group[J]. Coal Science and Technology,2016,44(10):48−52,94.
|
| [10] |
余明高,王亮,李海涛,等. 我国煤矿防灭火材料的研究现状及发展趋势[J]. 矿业安全与环保,2022,49(4):22−36.
YU Minggao,WANG Liang,LI Haitao,et al. Research status and development trend of fire-extinguishing materials in Chinese coal mines[J]. Mining Safety & Environmental Protection,2022,49(4):22−36.
|
| [11] |
张迎新,杨康,李日军,等. 矿井防灭火材料的研究进展及发展趋势[J]. 煤矿安全,2023,54(10):82−91.
ZHANG Yingxin,YANG Kang,LI Rijun,et al. Research progress and development trend of mine fire prevention and extinguishing materials[J]. Safety in Coal Mines,2023,54(10):82−91.
|
| [12] |
肖旸,尹岚,吕慧菲,等. 咪唑类离子液体处理煤热失重以及传热特性[J]. 煤炭学报,2019,44(2):520−527.
XIAO Yang,YIN Lan,LYU Huifei,et al. Characteristic of weight loss and heat transfer for the imidazolium-based ionic liquids treatment coal[J]. Journal of China Coal Society,2019,44(2):520−527.
|
| [13] |
何满潮,高玉兵,盖秋凯,等. 无煤柱自成巷力学原理及其工法[J]. 煤炭科学技术,2023,51(1):19−30.
HE Manchao,GAO Yubing,GAI Qiukai,et al. Mechanical principle and mining methods of automagical entry formation without coal pillars[J]. Coal Science and Technology,2023,51(1):19−30.
|
| [14] |
郭文彬. 孟加拉国Barapukuria井田三厚条件下协调减损开采理论研究与应用[D]. 西安:西安科技大学,2018.
GUO Wenbin. Research and its application of coordination mining considering disaster reduction prevention Bangladesh Barakupuria mine with all thick coal seam,loosen aquier zone and sadstone roof[D]. Xi’an:Xi’an University of Science and Technology,2018.
|
| [15] |
余学义,穆驰,李剑锋. 孟巴矿强含水体下分层开采覆岩导水裂隙带发育规律[J]. 煤炭学报,2022,47(S1):29−38.
YU Xueyi,MU Chi,LI Jianfeng. Development law of water-conducting fracture zone in overlying rock under layered mining under strong water-bearing body in Barapukuria coal mine[J]. Journal of China Coal Society,2022,47(S1):29−38.
|
| [16] |
余学义,穆驰,王皓,等. 孟加拉国Barapukuria矿厚煤层分层协调减灾开采模式[J]. 煤炭学报,2022,47(6):2352−2359.
YU Xueyi,MU Chi,WANG Hao,et al. Mining mode of layered and coordinated disaster reduction in thick coal seam of Barapukuria Coal Mine in Bangladesh[J]. Journal of China Coal Society,2022,47(6):2352−2359.
|
| [17] |
秦荣宏,翟小伟. 孟巴矿高地温高湿环境采空区特厚遗煤自燃规律研究[J]. 煤矿开采,2014(5):100−102,69.
QIN Ronghong,ZHAI Xiaowei. Spontaneous combustion rule of extremely-thick residual coal in gob of mengba colliery under high temperature and high humidity environment[J]. Coal Mining Technology,2014(5):100−102,69.
|
| [18] |
兖矿集团有限公司. 煤炭自燃早期预测预报与火源探测技术[M]. 北京:煤炭工业出版社,2002,4-5.
|
| [19] |
马砺,任立峰,王乃国,等. 深井高地温工作面煤自燃特点及预控方法研究[J]. 煤炭科学技术,2016,44(10):39−43.
MA Li,REN Lifeng,WANG Naiguo,et al. Study on coal spontaneous combustion features and pre-control method of high ground temperature coal mining face in deep depth mine[J]. Coal Science and Technology,2016,44(10):39−43.
|
| [20] |
朱建国,戴广龙,唐明云,等. 水浸长焰煤自燃预测预报指标气体试验研究[J]. 煤炭科学技术,2020,48(5):89−94.
ZHU Jianguo,DAI Guanglong,TANG Mingyun,et al. Experimental study on spontaneous combustion prediction index gas of water immersed long flame coal[J]. Coal Science and Technology,2020,48(5):89−94.
|
| [21] |
郭军,金彦,文虎,等. 矿井煤层自燃程度精细划分与预警方法研究[J]. 煤炭科学技术,2021,49(10):115−121.
GUO Jun,JIN Yan,WEN Hu,et al. Study on fine division and early warning methods of spontaneous combustion degree of coal seams in mines[J]. Coal Science and Technology,2021,49(10):115−121.
|
| [22] |
翟小伟,宋波波,樊世星,等. 基于采煤工作面推进度的采空区煤自燃分区隔离预防方法:CN113389589B[P]. 2023.03.24.
Zhai Xiaowei,Song Bobo,Fan Shixing,et al. Partition isolation prevention method of coal spontaneous combustion in goaf based on advancing degree of coal mining face:CN113389589B[P]. 2023.03.24.
|
| [23] |
庞卫东,于保华,马芝贺,等. 特厚煤层复杂条件下火区启封方案优化及控制技术[J]. 煤炭工程,2011,43(2):4−6. doi: 10.3969/j.issn.1671-0959.2011.02.003
PANG Weidong,YU Baohua,MA Zhihe,et al. Optimization and control technology of fire zone reopening plan under complicated conditions of ultra thick seam[J]. Coal Engineering,2011,43(2):4−6. doi: 10.3969/j.issn.1671-0959.2011.02.003
|
| [1] | YANG Ke, LIU Wenjie, LI Zhihua, LIU Qinjie, CHI Xiaolou, WEI Zhen. Catastrophe mechanism and prevention and control technology on soft coal mining with large inclination angle under thick and hard roof[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(2): 12-20. DOI: 10.13199/j.cnki.cst.2021.02.002 |
| [2] | XU Gang, HUANG Zhizeng, FAN Zhizhong, LU Zhenlong, ZHANG Zhen, XUE Jisheng, WANG Chuanpeng, WANG Yuanjie, CHEN Fabing, LI Yan, LIU Qianjin, LI Zhengjie, SU Bo, LI Chunrui, ZHANG Chunhui. Types, monitoring and prevention technology system of roof disasters in mining face in China[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(2): 1-11. DOI: 10.13199/j.cnki.cst.2021.02.001 |
| [3] | QIN Botao, ZHONG Xiaoxing, WANG Deming, XIN Haihui, SHI Quanlin. Research progress of coal spontaneous combustion process characteristics and prevention technology[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(1): 66-99. DOI: 10.13199/j.cnki.cst.2021.01.005 |
| [4] | FAN Zhizhong, PAN Liming, XU Gang, YIN Xiwen. Early warning technology of surrounding rock in high-intensity mining of intelligent ultra-long working face[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (10). |
| [5] | WANG Jianda, QIN Kai, DENG Zhigang, ZHAO Shankun, AN Sai, OUYANG Zhenhua. Study on early warning technology of rock burst basedon mining stress monitoring by fiber-grating[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (6). |
| [6] | DOU Linming, BAI Jinzheng, LI Xuwei, HE Hu. Study on prevention and control technology of rockburst disaster based on theory of dynamic and static combined load[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (10). |
| [7] | Dou Linming Li Zhenlei Zhang Min, . Study on monitoring and early warning technology of mine pressure bump disaster[J]. COAL SCIENCE AND TECHNOLOGY, 2016, (7). |
| [8] | YU Zheng-xing JIANG Fu-xing LI Feng ZHU Quan-jie WEI Quan-de, . Initiative prevention and control technology of mine pressure bump under complicated condition of deep mine[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (3). |
| [9] | MAO De-bing YIN Xi-wen ZHANG Hui-jun, . Technology of Prevention Roof Disasters and Monitoring and Controlling in China Coal Mines[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (9). |
| [10] | Real Time Monitoring and Measuring Early Warning Technology and Development of Mine Pressure Bumping[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (2). |
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: