光纤微震监测系统及其在五阳煤矿的应用研究

doi:10.3976/j.issn.1002-4026.2023.05.008

Abstract

Abstract:

Optical fiber microseismic monitoring technology is used to monitor and alert the microvibration events generated during production activities through observation and analysis with passivity and high reliability. Herein, the sensors are vertically installed on the side bolts along the roadway, and the monitoring substation is installed in the chamber. The sensors and the monitoring substation constitute a monitoring network through the laid optical cables. Besides, the simplex method is used to locate the seismic source. This method is free from divergence problems in the location calculation and is highly stable. Moreover, in this method, the solution of the partial derivative and inverse matrix is not required, which reduces the calculation amount and improves the calculation efficiency. Additionally, each sensor can use different wave velocities during the calculation based on the actual situation. The optical fiber microseismic monitoring system was installed in Shanxi Wuyang Coal Mine for preliminary monitoring and application, and the monitoring results were analyzed. The results show that the system can monitor mine activities and warn early, thereby playing a positive role in safe production.

Key words: optical fiber acceleration sensor, microseismic monitoring, simplex method, monitoring and early warning

CLC Number:

TD326

ZHANG Hua, HU Binxin, ZHU Feng, WANG Jiqiang, SONG Guangdong. Optical fiber microseismic monitoring system and its application research in Wuyang Coal Mine[J].Shandong Science, 2023, 36(5): 60-66.

Figures/Tables 7

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References 16

[1]	LIU J P, SI Y T, WEI D C, et al. Developments and prospects of microseismic monitoring technology in underground metal mines in China[J]. Journal of Central South University, 2021, 28(10): 3074-3098. DOI: 10.1007/s11771-021-4839-y.
[2]	岳东, 刘超, 袁增云. 基于微震监测的煤层覆岩关键层判别[J]. 煤炭科技, 2020, 41(4): 40-43. DOI: 10.19896/j.cnki.mtkj.2020.04.012.
[3]	于群, 唐春安, 李连崇, 等. 基于微震监测的锦屏二级水电站深埋隧洞岩爆孕育过程分析[J]. 岩土工程学报, 2014, 36(12): 2315-2322. DOI: 10.11779/CJGE201412021.
[4]	王创业, 谷雷, 高照. 微震监测技术在矿山中的研究与应用[J]. 煤炭技术, 2019, 38(10): 45-48. DOI: 10.13301/j.cnki.ct.2019.10.016.
[5]	MA T H, TANG C A, LIU F, et al. Microseismic monitoring, analysis and early warning of rockburst[J]. Geomatics, Natural Hazards and Risk, 2021, 12(1): 2956-2983. DOI: 10.1080/19475705.2021.1968961.
[6]	辛崇伟, 姜福兴, 樊硕, 等. 矿内-矿间微震监测技术研究[J]. 煤炭工程, 2021, 53(6): 107-112. DOI: 10.11799/ce202106021.
[7]	窦林名, 冯龙飞, 蔡武, 等. 煤岩灾变破坏过程的声震前兆识别与综合预警模型研究[J]. 采矿与安全工程学报, 2020, 37(5):960-968+976.DOI:10.13545/j.cnki.jmse.2020.05.012.
[8]	MCCREARY R, MCGAUGHEY J, POTVIN Y, et al. Results from microseismic monitoring, conventional instrumentation, and tomography surveys in the creation and thinning of a burst-prone sill pillar[J]. Pure and Applied Geophysics, 1992, 139(3): 349-373. DOI: 10.1007/BF00879942.
[9]	LIU S C, CHEN X, LI L X, et al. Microseismic real-time monitoring system based on virtual instruments[J]. International Journal of Hybrid Information Technology, 2016, 9(1): 413-422. DOI: 10.14257/ijhit.2016.9.1.36.
[10]	LIU F, WANG M, ZHANG M, et al. Intelligent microseismic events recognition in fiber-optic microseismic monitoring system compared with electronic one[J]. IEEE Photonics Journal, 2022, 14(2): 1-5. DOI: 10.1109/JPHOT.2022.3148315.
[11]	GEIGER L. Probability method for the determination of earthquake epicenters from arrival time only[J]. Bull.St.Louis.Univ., 1912, 8: 60-71.
[12]	张志斌, 金花, 王晓飞. 单纯形定位方法在新疆数字地震台网的测定精度分析[J]. 震灾防御技术, 2019, 14(1): 200-209.
[13]	李健, 高永涛, 谢玉玲, 等. 基于无需测速的单纯形法微地震定位改进研究[J]. 岩石力学与工程学报, 2014, 33(7): 1336-1346. DOI: 10.13722/j.cnki.jrme.2014.07.005.
[14]	李楠, 王恩元, 孙珍玉, 等. 基于L1范数统计的单纯形微震震源定位方法[J]. 煤炭学报, 2014, 39(12):8.
[15]	PRVGGER A F, GENDZWILL D J. Microearthquake location: a nonlinear approach that makes use of a simplex stepping procedure[J]. Bulletin of the Seismological Society of America, 1998, 78(2): 799-815. DOI: 10.1007/BF00819555.
[16]	PRUGGER A F, GENDZWILL D J. Microearthquake location: A nonlinear approach that makes use of a simplex stepping procedure[J]. Bulletin of the Seismological Society of America, 1988, 78(2): 799-815. DOI: 10.1785/bssa0780020799.

序号	日期	时间	X/m	Y/m	Z/m	能量/J	震级
1	2022-05-01	02:51:25	406 478.9	4 036 396.4	295.0	31 902.2	0.20
2	2022-05-01	03:45:25	405 802.5	4 036 364.6	336.5	52 878.8	0.05
3	2022-05-01	04:24:00	406 567.6	4 036 897.6	213.6	13 625.8	0.44
4	2022-05-01	23:04:10	406 465.1	4 036 738.8	257.7	3 090.6	0.87
5	2022-05-01	23:11:58	406 382.2	4 036 491.3	324.2	39 266.9	0.14
6	2022-05-02	01:34:29	406 596.3	4 036 991.5	303.3	17 065.0	0.38
7	2022-05-02	04:29:07	406 569.5	4 036 992.8	182.0	22 753.0	0.30
8	2022-05-02	05:32:56	406 734.2	4 037 062.1	277.8	49 330.7	0.07
9	2022-05-02	07:50:10	406 556.1	4 036 785.9	323.2	12 585.1	0.47
10	2022-05-02	07:50:30	406 417.9	4 036 206.9	133.9	46 056.5	0.09
11	2022-05-02	08:49:48	406 454.2	4 036 330.7	343.0	32 740.3	0.19
12	2022-05-02	13:45:44	406 333.0	4 036 356.6	284.8	17 311.1	0.37
13	2022-05-02	15:19:04	406 375.1	4 036 508.8	330.6	11 802.8	0.49
14	2022-05-02	18:38:39	406 501.2	4 036 806.3	492.9	10 352.6	0.52
15	2022-05-02	23:13:59	406 623.2	4 036 858.3	198.9	13 298.1	-0.45

Optical fiber microseismic monitoring system and its application research in Wuyang Coal Mine

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