Study on energy stress evolution law of non-coal protective layer working face and effect of roof and floor structure on strong mine earthquake

ZHANG Tianlu

doi:10.13347/j.cnki.mkaq.20231252

Safety in Coal Mines > 2024 > 55(6): 126-133. > DOI: 10.13347/j.cnki.mkaq.20231252

ZHANG Tianlu. Study on energy stress evolution law of non-coal protective layer working face and effect of roof and floor structure on strong mine earthquake[J]. Safety in Coal Mines, 2024, 55（6）: 126−133. DOI: 10.13347/j.cnki.mkaq.20231252

Citation:

PDF (1405 KB)

Study on energy stress evolution law of non-coal protective layer working face and effect of roof and floor structure on strong mine earthquake

ZHANG Tianlu

Yaojie Coal and Electricity Group Co., Ltd., Lanzhou 733000, China

More Information

Received Date: August 31, 2023
Revised Date: October 17, 2023

Graphical Abstract

Abstract

Abstract

Protective seam mining is widely used as an effective method for preventing and controlling rock burst, the protective layer itself also has the risk of strong mine earthquake and rock burst. Taking the protective seam of the oil shale working face in Haishiwan Coal Mine, which encountered with the strong mining earthquake during the mining process, as the engineering background, the focal mechanism and main control factors of the strong mining earthquake were analyzed through numerical simulation and theoretical analysis. The research results show that the strong mining earthquake in the oil shale working face are mainly caused by compression shear failure under stress concentration. The mining of the protected coal seam working face has a more significant impact on the stress and energy distribution in the floor strata of the protected seam. There are significant influences on the occurrence of strong mine earthquake events, such as hard roof strata, thin rock strata on floor and thickness variation between protective layer and protected layer.
- oil shale working face,
- protective seam mining,
- strong mine earthquake,
- rock burst,
- rock structure

FullText(HTML)

References (16)

References

[1]	窦林名,周坤友,宋士康,等. 煤矿冲击矿压机理、监测预警及防控技术研究[J]. 工程地质学报,2021,29(4):917−932. DOU Linming, ZHOU Kunyou, SONG Shikang, et al. Occurrence mechanism, monitoring and prevention technology of rockburst in coal mines[J]. Journal of Engineering Geology, 2021, 29(4): 917−932.
[2]	CAO A, DOU L, LI F, et al. Study on characteristic of overburden movement in unsymmetrical isolated longwall mining using microseismic technique: ISMSSE 2011[C]//First International Symposium on Mine Safety Science and Engineering, China Academy of Safety and Technology, 2011: 1394−1403.
[3]	潘俊锋,刘少虹,秦子晗,等. 深部盘区巷道群集中静载荷型冲击地压机理与防治[J]. 煤炭学报,2018,43(10):2679−2686. PAN Junfeng, LIU Shaohong, QIN Zihan, et al. Mechanism and prevention of concentrated static load type rock burst of roadway group in deep mining area[J]. Journal of China Coal Society, 2018, 43(10): 2679−2686.
[4]	李艳增,周睿. 冲击地压煤层复合多灾协同防治技术及应用[J]. 煤矿安全,2023,54(6):90−96. LI Yanzeng, ZHOU Rui. Collaborative control and prevention technology of muti-disaster control of rock burst coal seam[J]. Safety in Coal Mines, 2023, 54(6): 90−96.
[5]	潘一山,宋义敏,刘军. 我国煤矿冲击地压防治的格局、变局和新局[J]. 岩石力学与工程学报,2023,42(9):2081−2095. PAN Yishan, SONG Yimin, LIU Jun. Pattern, change and new situation of coal mine rockburst prevention and control in China[J]. Chinese Journal of Rock Mechanics and Engineering, 2023, 42(9): 2081−2095.
[6]	欧阳振华,周然然,石增柱,等. 保护层不对称卸压工作面分区防冲技术[J]. 煤矿安全,2023,54(4):103−110. OUYANG Zhenhua, ZHOU Ranran, SHI Zengzhu, et al. Zonal prevention and control technology for rock burst in asymmetrical pressure-relief working face under protective layer[J]. Safety in Coal Mines, 2023, 54(4): 103−110.
[7]	徐超,杨港,付强,等. 交叉叠置保护层工作面重复采动卸压效应研究[J]. 煤矿安全,2022,53(10):64−73. XU Chao, YANG Gang, FU Qiang, et al. Study on pressure relief effect of repeated mining in cross-stacked protective face[J]. Safety in Coal Mines, 2022, 53(10): 64−73.
[8]	窦林名,田鑫元,曹安业,等. 我国煤矿冲击地压防治现状与难题[J]. 煤炭学报,2022,47(1):152−171. DOU Liming, TIAN Xinyuan, CAO Anye, et al. Present situation and problems of coal mine rock burst prevention and control in China[J]. Journal of China Coal Society, 2022, 47(1): 152−171.
[9]	窦林名,白金正,李许伟,等. 基于动静载叠加原理的冲击矿压灾害防治技术研究[J]. 煤炭科学技术,2018,46(10):1−8. DOU Linming, BAI Jinzheng, LI Xuwei, et al. Study on prevention and control technology of rockburst disaster based on theory of dynamic and static combined load[J]. Coal Science and Technology, 2018, 46(10): 1−8.
[10]	CHENG X, ZHAO G, LI Y, et al. Mining-induced pressure-relief mechanism of coal-rock mass for different protective layer mining modes[J]. Advances in Materials Science and Engineering, 2021, 2021: 1−15.
[11]	FANG S, LIANG B, SUN W, et al. Study on stress evolution law of overburden under repeated mining in long-distance double upper protective layer[J]. Energies, 2022, 15(12): 4459. doi: 10.3390/en15124459
[12]	杨永波,周哲. 分级循环荷载下保护层开采扰动煤岩强度及裂隙特性研究[J]. 浙江大学学报(工学版),2022,56(12):2445−2453. YANG Yongbo, ZHOU Zhe. Strength and fracture characteristics of coal rock disturbed by protective layer mining under graded cyclic loading[J]. Journal of Zhejiang University (Engineering Science), 2022, 56(12): 2445−2453.
[13]	刘军,张宪尚,张士岭. 煤层群上下保护层开采围岩应力时空演化规律及应用研究[J]. 中国安全生产科学技术,2023,19(6):66−73. LIU Jun, ZHANG Xianshang, ZHANG Shiling. Study on spatial and temporal evolution law of surrounding rock stress in mining of upper and lower protective layers of coal seams group and its application[J]. Journal of Safety Science and Technology, 2023, 19(6): 66−73.
[14]	王德忠,王禹,朱国宏,等. 上保护层开采过程中下伏煤岩体应力变化规律研究[J]. 煤炭技术,2023,42(8):57−60. WANG Dezhong, WANG Yu, ZHU Guohong, et al. Study on law of stress variation of underlying coal and rock mass during mining of upper protective layer[J]. Coal Technology, 2023, 42(8): 57−60.
[15]	崔聪,马延崑,舒龙勇,等. 保护层开采条件下煤层力学扰动规律及抽采半径考察[J] 煤炭技术,2023,42(2):61-65. CUI Cong, MA Yankun, SHU Longyong, et al. Investigation on mechanical disturbance law and extraction radius of coal seam under condition of protective seam mining[J]. Coal Technology, 2023, 42(2): 61-65.
[16]	薛俊华,肖健,杜轩宏,等. 我国煤矿保护层开采卸压瓦斯抽采现状及发展趋势[J]. 煤田地质与勘探,2023,51(6):50−61. XUE Junhua, XIAO Jian, DU Xuanhong, et al. Current situation and development trend of pressure-relief gas extraction in the protective layer mining in coal mines in China[J]. Coal Geology & Exploration, 2023, 51(6): 50−61.

[1]	TONG Linquan, XU Yang, WANG Xuetao, YANG Hanbin, MA Kui. CFD-DEM numerical study on coal dust pollution law of coal transfer point in underground coal mine[J]. Safety in Coal Mines, 2021, 52(5): 188-192,200.
[2]	XIANG Xiaogang, SUN Shaowei, ZHAO Meicheng, DENG Xiaoliang, LI Peng, XU Rui. Numerical simulation study on distribution law of respirable dust concentration and its relationship with turbulence intensity in fully mechanized mining face[J]. Safety in Coal Mines, 2021, 52(4): 13-19.
[3]	KONG Yang, PANG Haosheng, SONG Shuzheng, MENG Qunzhi. Numerical Simulation Study on Law of Dispersive Pollution of Dust in Fully Mechanized Mining Face[J]. Safety in Coal Mines, 2020, 51(6): 218-222.
[4]	LEI Meng. Study on Dust Migration Laws of Fully Mechanized Mining Face Based on Time Scale[J]. Safety in Coal Mines, 2019, 50(3): 185-188.
[5]	XU Shengdong, LI Dewen, CHEN Fang. Numerical Simulation on Distribution Laws of Air and Respirable Dust at Fully Mechanized Face with 8 m Mining Height[J]. Safety in Coal Mines, 2018, 49(12): 160-163,168.
[6]	DING Cui. Research Progress of Dust Movement and Diffusion Laws in Excavation Roadway[J]. Safety in Coal Mines, 2018, 49(9): 219-222,232.
[7]	ZHAO Leiyu, WEI Xiuye, LIU Qiuzu, WANG Xindong. CFD Simulations on Gas-particle Two Phase Flow of Dust Distribution[J]. Safety in Coal Mines, 2016, 47(1): 148-150.
[8]	BAI Ruonan, ZHANG Qi, YU Haiming, MA Xiao, CHEN Hongtao. Numerical Simulation Analysis of Dust Distribution Laws Affected by Wind Speed at Fully-mechanized Working Face[J]. Safety in Coal Mines, 2015, 46(9): 180-183.
[9]	MuLaLi?MaZhaFu, DING Yong-ming, CHEN Ju-shi. The Rule of Dust Concentration Distribution at Fully-mechanized Face in Xiaohonggou Coal Mine[J]. Safety in Coal Mines, 2013, 44(6): 165-167.
[10]	YAO Xi-wen, LU Guang-li. Numerical Simulation of Distribution Laws of Dust Concentration in Fully Mechanized Caving Face With High Inclination Angle[J]. Safety in Coal Mines, 2013, 44(2): 22-24,25.

Cited By

Cited by

Periodical cited type(7)

1.	魏启明，胡亚军，张海龙，杨宗泉，王虎，刘玉德. 煤层群下煤层开采工作面矿压显现规律研究. 当代化工研究. 2025(01): 43-45 .
2.	安伟岗，陆星，白贝贝. 煤矿综采工作面增面设备安装及施工技术研究. 设备管理与维修. 2025(04): 97-99 .
3.	武瑞成. 厚煤层综放开采矿压显现异常治理研究. 内蒙古煤炭经济. 2024(04): 67-69 .
4.	尚立斌. 阳泉矿区大埋深超长工作面装备适应性研究. 煤炭技术. 2024(06): 217-219 .
5.	孙俊明，侯增平，徐宏强. 超长工作面液压支架关键参数设计及效益分析. 陕西煤炭. 2024(08): 72-77 .
6.	李尚国. 超长工作面采空区分段阻隔自燃防治研究. 煤炭与化工. 2024(11): 121-124 .
7.	薛丁才. 煤矿120210工作面矿压监测及采煤工艺优化分析. 山西冶金. 2024(11): 205-207 .

Other cited types(1)

Get Citation

PDF

XML

Article views (25) PDF downloads (3) Cited by(8)

Turn off MathJax

Article Contents

Abstract

References

Study on energy stress evolution law of non-coal protective layer working face and effect of roof and floor structure on strong mine earthquake