An early warning method and application of water inrush from coal mining floor based on the correlation effect between daily cumulative micro-seismic indicators and water level
(1. Inner Mongolia Research Institute，China University of Mining and Technology(Beijing)，Beijing 100083，China；2. School of Energy and Mining Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China；3. Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources，China University of Mining and Technology (Beijing)，Beijing 100083，China；4. Hebei Coal Sciences Research Intitute Corporation Ltd.，Xingtai，Hebei 054000，China)
Abstract：The difficulty of quantitative early warning of water inrush disasters on the coal mine floor is the selection of the sensitivity index. At present，the early warning of water inrush based on microseismic often selects multi-source data，and lacks detailed analysis of indicators closer to the development of water-flowing fractures. According to the field monitoring methods of 16091 working face in Zhaogu No.1 Coal Mine，the correlation and sequence relationship between microseismic event frequency index，energy index and water level change are analyzed in this paper. Practice shows that microseismic and water level have a good spatial and temporal correlation. Based on this，a comprehensive early warning index of floor water inrush disasters based on microseismic-water level is established. The following results are obtained. (1) During the period of high frequency and high energy of microseismic，the water level began to decline，and the water inflow increased after a while. In the low frequency and low energy period of microseismic，the water level began to rise. The decline time and amplitude of the water level in the observation holes correspond to the spatial position of the distance from the working face. It shows that microseismic and water level have an obvious correlation in time and space. (2) Under the combined action of mining disturbance and floor water pressure，the frequency and energy of microseismic events on the coal seam floor increase，and the range continues to extend. Then the water channel is formed，and the water level of the observation hole declines. With the periodic pressure，the cracks gradually closed. At this time，microseismic events are low frequency and low energy. Under the supply of water source，the confined water level rises to a certain height and tends to be stable. (3) Based on the correlation effect between microseismic and water level，the daily cumulative frequency of floor microseismic，daily cumulative energy，and daily decline of water level in four observation holes are taken as the basic parameters，and the comprehensive early warning index of microseismic-water level is established utilizing basic index standardization，weight calculation. After calculation，the comprehensive early warning index threshold of water gushing(inrush) in 16091 working face is 0.30. (4) The field application results of the project show that when the comprehensive early warning index value exceeds the threshold value of the working face，there is a large underground water inflow after the alarm. It has a good effect on the early warning of water inrush from the coal seam floor，so the microseismic-water level can be used as a comprehensive early warning index of floor water inrush.
郝宪杰1，2，3，李 航1，2，赵毅鑫1，2，3，杨怀翔2，杨 波4，刘科峰2，李宜家2. 基于日累积微震指标与水位关联效应的底板突水预警方法与应用[J]. 岩石力学与工程学报, 2024, 43(9): 2125-2139.
HAO Xianjie1，2，3，LI Hang1，2，ZHAO Yixin1，2，3，YANG Huaixiang2，YANG Bo4，LIU Kefeng2，LI Yijia2. An early warning method and application of water inrush from coal mining floor based on the correlation effect between daily cumulative micro-seismic indicators and water level. , 2024, 43(9): 2125-2139.
[1] 王 皓，董书宁，姬亚东，等. 煤矿水害智能化防控平台架构及关键技术[J]. 煤炭学报，2022，47(2)：883–892.(WANG Hao，DONG Shuning，JI Yadong，et al. Key technology and platform development of intelligent prevention and control on coal mine water disaster[J]. Journal of China Coal Society，2022，47(2)：883–892.(in Chinese))
[2] 王 悦，于 水，王苏健，等. 微震监测技术在煤矿底板突水预警中的应用[J]. 煤炭科学技术，2018，46(8)：68–73.(WANG Yue，YU Shui，WANG Sujian，et al. Application of microseismic monitoring technology in water inrush warning of coal mine floor[J]. Coal Science and Technology，2018，46(8)：68–73.(in Chinese))
[3] 王朋朋，赵毅鑫，姜耀东，等. 邢东矿深部带压开采底板突水特征及控制技术![J]. 煤炭学报，2020，45(7)：2 444–2 454.(WANG Pengpeng，ZHAO Yixin，JIANG Yaodong，et al. Characteristics and control technology of water inrush from deep coal seam floor above confined aquifer in Xingdong Coal Mine[J]. Journal of China Coal Society，2020，45(7)：2 444–2 454.(in Chinese))
[4] 尹尚先，王 屹，尹慧超，等. 深部底板奥灰薄灰突水机制及全时空防治技术[J]. 煤炭学报，2020，45(5)：1 855–1 864.(YIN Shangxian，WANG Yi，YIN Huichao，et al. Mechanism and full-time-space prevention and control technology of water inrush from Ordovician and thin limestone in deep mines[J]. Journal of China Coal Society，2020，45(5)：1 855–1 864.(in Chinese))
[5] 靳德武，段建华，李连崇，等. 基于微震的底板采动裂隙扩展及导水通道识别技术研究[J]. 工程地质学报，2021，29(4)：962–971.(JIN Dewu，DUAN Jianhua，LI Lianchong，et al. Microseismicity based research for mining induced fracture propagation and water pathway identification technology of floor[J]. Journal of Engineering Geology，2021，29(4)：962–971.(in Chinese))
[6] 肖 鹏，韩 凯，双海清，等. 基于微震监测的覆岩裂隙演化规律相似模拟试验研究[J]. 煤炭科学技术，2022，50(9)：48–56.(XIAO Peng，HAN Kai，SHUANG Haiqing，et al. Similar material simulation test study on evolution law of overburden fracture based on microseismic monitoring[J]. Coal Science and Technology，2022，50(9)：48–56.(in Chinese))
[7] 原富珍，马 克，庄端阳，等. 基于微震监测的董家河煤矿底板突水通道孕育机制[J]. 煤炭学报，2019，44(6)：1 846–1 856.(YUAN Fuzhen，MA Ke，ZHUANG Duanyang，et al. Preparation mechanism of water inrush channels in bottom floor of Dongjiahe Coal Mine based on microseismic monitoring[J]. Journal of China Coal Society，2019，44(6)：1 846–1 856.(in Chinese))
[8] 柴金飞，金爱兵，高永涛，等. 基于矩张量反演的矿山突水孕育过程[J]. 工程科学学报，2015，37(3)：267–274.(CHAI Jinfei，JIN Aibing，GAO Yongtao，et al. Water inrush inoculation process in mines based on moment tensor inversion[J]. Chinese Journal of Engineering，2015，37(3)：267–274.(in Chinese))
[9] 刘生优，樊振丽，尹希文，等. 强富水含水层下综放开采水砂灾害防控关键技术[J]. 煤炭学报，2020，45(8)：2 880–2 889.(LIU Shengyou，FAN Zhenli，YIN Xiwen，et al. Key technologies for prevention and control of water-sand inrush disaster in fully mechanized caving mining under rich water aquifer[J]. Journal of China Coal Society，2020，45(8)：2 880–2 889.(in Chinese))
[10] 刘 超，吴顺川，程爱平，等. 采动条件下底板潜在导水通道形成的微震监测与数值模拟[J]. 北京科技大学学报，2014，36(9)：1 129–1 135.(LIU Chao，WU Shunchuan，CHENG Aiping，et al. Microseismic monitoring and numerical simulation of the formation of water inrush pathway caused by coal mining[J]. Journal of University of Science and Technology Beijing，2014，36(9)：1 129–1 135.(in Chinese))
[11] 陆银龙，王连国. 含断层煤层底板损伤破坏演化数值模拟及微震监测研究[J]. 采矿与安全工程学报，2013，30(1)：38–44.(LU Yinlong，WANG Lianguo. Modeling and microseismic monitoring of damage and failure evolution of faulty coal seam floor[J]. Journal of Mining and Safety Engineering，2013，30(1)：38–44.(in Chinese))
[12] 乔 伟，刘梦楠，李连刚，等. 采动覆岩“突水离层带”岩体结构演化致灾机制及突水预报方法[J]. 煤炭学报，2023，48(2)：818–832. (QIAO Wei，LIU Mengnan，LI Liangang，et al. Disaster mechanism induced by structure evolution of“water-inrushing separation zone”of mining rock mass and prediction method of water inrush from separation layer[J]. Journal of China Coal Society，2023，48(2)：818–832.(in Chinese))
[13] 孙运江，左建平，李玉宝，等. 邢东矿深部带压开采导水裂隙带微震监测及突水机制分析[J]. 岩土力学，2017，38(8)：2 335–2 342. (SUN Yunjiang，ZUO Jianping，LI Yubao，et al. Micro-seismic monitoring on fractured zone and water inrush mechanism analysis of deep mining above aquifer in Xingdong coalmine[J]. Rock and Soil Mechanics，2017，38(8)：2 335–2 342.(in Chinese))
[14] 孙 建，王连国. 基于微震信号突变分析的底板断层突水预测[J].煤炭学报，2013，38(8)：1 404–1 410.(SUN Jian，WANG Lianguo. Floor fault water-inrush prediction based on catastrophe analysis of micro-seismic signals[J]. Journal of China Coal Society，2013，38(8)：1 404–1 410.(in Chinese))
[15] 孙春东，姜福兴，刘 懿，等. 超高水开放式充填开采围岩破裂的微地震监测[J]. 岩石力学与工程学报，2014，33(3)：475–483.(SUN Chundong，JIANG Fuxing，LIU Yi，et al. Fractured zone of surrounding rock masses monitored by microseismic monitoring techniques in open backfilled mine using ultra high-water material[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(3)：475–483.(in Chinese))
[16] 窦林名，何 江，巩思园，等. 采空区突水动力灾害的微震监测案例研究[J]. 中国矿业大学学报，2012，41(1)：20–25.(DOU Linming，HE Jiang，GONG Siyuan，et al. A case study of micro-seismic monitoring：goaf water-inrush dynamic hazards[J]. Journal of China University of Mining and Technology，2012，41(1)：20–25.(in Chinese))
[17] 程爱平，高永涛，梁兴旺，等. 煤矿底板潜在突水危险区微震识别研究[J]. 岩土工程学报，2014，36(9)：1 727–1 732.(CHENG Aiping，GAO Yongtao，LIANG Xingwang，et al. Identification of potential water inrush areas in coal floor by using microseismic monitoring technique[J]. Chinese Journal of Geotechnical Engineering，2014，36(9)：1 727–1 732.(in Chinese))
[18] 查华胜，张海江，连会青，等. 潘二煤矿A组煤层底板灰岩水害微震监测[J]. 煤炭学报，2022，47(8)：3 001–3 014.(ZHA Huasheng，ZHANG Haijiang，LIAN Huiqing，et al. Microseismic monitoring on limestone water inrush at coal seam floor for group a coal layer of Pan?er Coal Mine[J]. Journal of China Coal Society，2022，47(8)：3 001–3 014. (in Chinese))
[19] 许延春，黄 磊. 基于微震监测的工作面底板突水全时空预警方法[J]. 煤炭科学技术，2023，51(1)：369–382.(XU Yanchun，HUANG Lei. Full-time and space early-warning method for floor water inrush in working face based on microseismic monitoring[J]. Coal Science and Technology，2023，51(1)：369–382.(in Chinese))
[20] 赵家巍，周宏伟，薛东杰，等. 深部承压水上含隐伏构造煤层底板渗流路径扩展规律[J]. 煤炭学报，2019，44(6)：1 836–1 845.(ZHAO Jiawei，ZHOU Hongwei，XUE Dongjie，et al. Expansion law of seepage path in the concealed structural floor of coal seam in deep confined water[J]. Journal of China Coal Society，2019，44(6)：1 836–1 845.(in Chinese))
[21] 张党育，武 斌，贾 靖，等. 基于微震数据及模型的煤矿水害“双驱动”预警体系构建与应用[J]. 煤炭科学技术，2023，51(增1)：242–255.(ZHANG Dangyu，WU Bin，JIA Jing，et al. Construction and application of“Dual-drive”pre-warning system for coal mine water disaster based on microseismic data and model[J]. Coal Science and Technology，2023，51(Supp.1)：242–255.(in Chinese))
[22] 余国锋，袁 亮，任 波，等. 底板突水灾害大数据预测预警平台[J]. 煤炭学报，2021，46(11)：3 502–3 514.(YU Guofeng，YUAN Liang，REN Bo，et al. Big data prediction and early warning platform for floor water inrush disaster[J]. Journal of China Coal Society，2021，46(11)：3 502–3 514.(in Chinese))
[23] 靳德武，赵春虎，段建华，等. 煤层底板水害三维监测与智能预警系统研究[J]. 煤炭学报，2020，45(6)：2 256–2 264.(JIN Dewu，ZHAO Chunhu，DUAN Jianhua，et al. Research on 3D monitoring and intelligent early warning system for water hazard of coal seam floor[J]. Journal of China Coal Society，2020，45(6)：2 256–2 264.(in Chinese))
[24] 乔 伟，靳德武，王 皓，等. 基于云服务的煤矿水害监测大数据智能预警平台构建[J]. 煤炭学报，2020，45(7)：2 619–2 627.(QIAO Wei，JIN Dewu，WANG Hao，et al. Development of big data intelligent early warning platform for coal mine water hazard monitoring based on cloud service[J]. Journal of China Coal Society，2020，45(7)：2 619–2 627.(in Chinese))
[25] 胡雄武，徐 标，张平松，等. 采煤工作面底板水双频激电法数值仿真与探测试验[J]. 煤炭学报，2022，47(8)：3 024–3 036.(HU Xiongwu，XU Biao，ZHANG Pingsong，et al. Numerical simulation and exploration test for water from the floor strata of coal-mining face using dual-frequency induced polarization method[J]. Journal of China Coal Society，2022，47(8)：3 024–3 036.(in Chinese))
[26] 程关文. 煤矿突水的微破裂前兆信息微震监测技术研究[博士学位论文][D]. 大连：大连理工大学，2017：67–87.(CHENG guanwen. study on microseismic monitoring technique for micro-fractureprecursor information of water inrush[Ph. D. Thesis][D]. Dalian：Dalian University of Technology，2017：67–87.(in Chinese))
[27] 连会青，徐 斌，田振焘，等. 矿井水情监测与水害风险预警平台设计与实现[J]. 煤田地质与勘探，2021，49(1)：198–207.(LIAN Huiqing，XU Bin，TIAN Zhentao，et al. Design and implementation of mine water hazard monitoring and early warning platform[J]. Coal Geology and Exploration，2021，49(1)：198–207.(in Chinese))
[28] 郭 艳，桂和荣，魏久传，等. 区域注浆影响下煤层底板太原组灰岩水水文地球化学演化规律[J]. 煤炭学报，2023，48(8)：3 204–3 217. (GUO Yan，GUI Herong，WEI Jiuchuan，et al. Hydrogeochemical evolution law of Taiyuan Formation limestone water under coal seam floor caused by the influence of regional grouting[J]. Journal of China Coal Society，2023，48(8)：3 204–3 217.(in Chinese))
2024, Vol. 43 
