AI Chat Paper
Note: Please note that the following content is generated by AMiner AI. SciOpen does not take any responsibility related to this content.
{{lang === 'zh_CN' ? '文章概述' : 'Summary'}}
{{lang === 'en_US' ? '中' : 'Eng'}}
Chat more with AI
Powered by AMiner. Clicking this button will take you away from SciOpen.
Home Journal of Mining Science and Technology Article
PDF (10 MB)
Cite
EndNote(RIS) BibTeX
Collect
Submit Manuscript AI Chat Paper
Show Outline
Outline
Show full outline
Hide outline
Outline
Show full outline
Hide outline
Research Article | Publishing Language: Chinese | Open Access

Effect of mining speed on the activation characteristics of normal faults in deep thick coal seams

Hua BIAN1,2,3, Yixin ZHAO1,2,3( ), Yuan WANG3, Liangchen ZHAO3, Zhe YANG3, Jian HAO4
Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources, China University of Mining and Technology-Beijing, Beijing 100083, China
Inner Mongolia Research Institute, China University of Mining and Technology-Beijing, Ordos Inner Mongolia 017010, China
School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
College of Energy and Engineering, Shandong University of Science and Technology, Qingdao Shandong 266590, China
Show Author Information

Abstract

This study attempts to investigate the effect of mining speed on the activation characteristics of normal faults. Taking the working face 8302 of the Xinjulong Coal Mine as the engineering background, this study explores the activation mechanism under the disturbance caused by hanging wall mining of normal faults. We investigated the effect of mining speed and the distance from the working face to the fault on the activation tendency of the fault through numerical simulation. Results show that the high-level stratum of normal fault is a high-risk area for fault plane activation, and its activation tendency index Ts is influenced by fault inclination θ and mining speed v of the working face. The fault activation in the mining process of the hanging wall working face can therefore be divided into 2 stages: quasi-static and activation. With the increase of v, the peak stress of surrounding rock decreases first and then increases. When v is 3 m/d, the peak stress reaches its minimum of 28.12 MPa. This could alleviate the stress concentration of surrounding rock. When the distance between the working face and the fault is less than 30 m, the risk of fault plane activation increases significantly. However, with a mining speed of 3 m/d, the activation tendency of fault plane reaches its minimum, and the distance causing fault activation is reduced to 40 m, outperforming those with other mining speeds.

Keywords

mining speeddeep thick coal seammining on the hanging wall of normal faultfault activationsurrounding rock stress
CLC number: TD324 Document code: A Article ID: 2096-2193(2025)03-0500-11

References

[1]

ZHANG Liangliang, CHENG Hua, YAO Zhishu, et al. Prediction model and parameter analysis of surface movement duration in deep coal mining[J]. Rock and Soil Mechanics, 2024, 45(2): 577-587.
Crossref Google Scholar
[2]

PAN Yishan, XIAO Yonghui, LUO Hao, et al. Study on safety of rockburst mine[J]. Journal of China Coal Society, 2023, 48(5): 1846-1860.
Google Scholar
[3]

JU Wenjun, YANG Hongzhi, FU Yukai, et al. Development and prospect of supporting technology in coal mine rockburst roadway[J]. Coal Engineering, 2022, 54(11): 1-6.
Google Scholar
[4]

GAO Ansen, QI Chengzhi, SHAN Renliang. State of the art review of the risk assessment and early warning methods for fault-slip rockburst[J]. Journal of Mining Science and Technology, 2022, 7(6): 643-654.
Crossref Google Scholar
[5]

LI Yang, YANG Tianhong, HAO Nai, et al. Mining rate effect of high-intensity working face based on stress release rate and microseismic monitoring[J]. Journal of Mining & Safety Engineering, 2021, 38(2): 295-303.
Google Scholar
[6]

JIANG Fuxing, ZHANG Xiang, ZHU Sitao. Discussion on key problems in prevention and control system of coal mine rock burst[J]. Coal Science and Technology, 2023, 51(1): 203-213.
Google Scholar
[7]

LIU Wenchao, ZHAO Yixin. Mechanism and prevention of typical coal burst disaster at the working face of Hongqinghe coal mine[J]. Journal of Mining Science and Technology, 2023, 8(6): 803-816, 827.
Crossref Google Scholar
[8]

SONG Lijun, LIU Huiyong. Study on the influence of mining speed on working face of rockburst mine and its regulation method[J]. China Coal Industry, 2023(2): 67-69.
Google Scholar
[9]

ZHANG Zhongwen, ZHAO Lei, HAN Gang. Method of determining reasonable mining speed in rockburst mine[J]. Coal Science and Technology, 2021, 49(12): 67-74.
Crossref Google Scholar
[10]

ZHAO Tongbin, GUO Weiyao, HAN Fei, et al. Analysis on energy accumulation and release of roof under influence of mining speed[J]. Coal Science and Technology, 2018, 46(10): 37-44.
Google Scholar
[11]

FENG Longfei, DOU Linming, WANG Xiaodong, et al. Mechanism of mining advance speed on energy release from hard roof movement[J]. Journal of China Coal Society, 2019, 44(11): 3329-3339.
Google Scholar
[12]

JIA C, LAI X P, CUI F, et al. Study on multisize effect of mining influence of advance speed in steeply inclined extrathick coal seam[J]. Lithosphere, 2022, 2022(Special 10): 9775460.
Crossref Google Scholar
[13]

WANG Hongwei, WANG Gang, SHI Ruiming, et al. Research on evolution characteristics of fault sliding displacement in slicing mining[J]. Journal of Mining Science and Technology, 2021, 6(6): 688-695.
Crossref Google Scholar
[14]

LIU H, DENG K Z, ZHU X J, et al. Effects of mining speed on the developmental features of mining-induced ground fissures[J]. Bulletin of Engineering Geology and the Environment, 2019, 78(8): 6297-6309.
Crossref Google Scholar
[15]

TAN Yunliang, TAN Tao, ZHANG Xiufeng, et al. Difference and mechanism of dynamic behaviors between two walls of normal fault[J]. Coal Science and Technology, 2023, 51(1): 214-223.
Google Scholar
[16]

XIANG Peng, JI Hongguang, WANG Jin'an, et al. Dynamic characteristics and criterion of mining disturbance effect on faults[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1): 2639-2646.
Google Scholar
[17]

YANG Jinghu, SUN Shaolong, KONG Dezhong. Effect of working face length and advancing speed on strata behaviors in high-intensity mining[J]. Rock and Soil Mechanics, 2015, 36(S2): 333-339, 350.
Google Scholar
[18]

WANG Chaoyin. Effect of mining speed on bump manifestation of fully-mechanized mining face in deep and thick coal seam[J]. Coal Science and Technology, 2019, 47(8): 96-101.
Google Scholar
[19]

WANG Shuwen, JU Wenjun, PAN Junfeng, et al. Mechanism of energy partition evolution of excavation roadway rockburst in coal seam under tectonic stress field[J]. Journal of China Coal Society, 2019, 44(7): 2000-2010.
Google Scholar
[20]

YANG Jinghu, YU Xiang. Mechanical explanation of loading rate impact on tensile strength and its numerical simulation analysis[J]. Journal of China Coal Society, 2017, 42(S1): 51-59.
Google Scholar
[21]

REN Shuiquan. Influence of mining speed on mine pressure in working face and stability of mining roadway[J]. Safety in Coal Mines, 2018, 49(8): 234-238.
Google Scholar
[22]

ZHENG Jun. Discussion on the timing of initial support for tunnel construction based on stress release method[J]. Railway Construction Technology, 2021(1): 54-58.
Google Scholar
[23]
CHAI Jing, LAN Hao, MA Chenyang, et al. Identification of the degree of stress release and unloading in the underlying coal rock of protected seam mining[J/OL]. Journal of China Coal Society, 1-13[2025-02-22]. https://doi.org/10.13225/j.cnki.jccs.2023.0895.
[24]

FENG Guorui, ZHU Weibing, LI Zhu, et al. Dynamic collapse mechanism and prevention of shallow-buried pillar group underlying working seam floor in mined-out area[J]. Journal of China Coal Society, 2022, 47(1): 200-209.
Google Scholar
[25]

REN Zheng, JIANG Yaodong, ZHANG Kexue. Mechanics of rock-burst induced by thrust fault phased activation under mining disturbance[J]. Journal of China Coal Society, 2020, 45(S2): 618-625.
Google Scholar
[26]
REN Zheng. Research on fault instability response characteristics and induced coal bump mechanism under mining disturbance[D]. Beijing: China University of Mining and Technology-Beijing, 2021.
[27]

JIANG Yaodong, WANG Tao, ZHAO Yixin, et al. Numerical simulation of fault activation pattern induced by coal extraction[J]. Journal of China University of Mi-ning & Technology, 2013, 42(1): 1-5.
Google Scholar
[28]
GAO Jiaming. Study on surrounding rock movement law of gob side-entry with rock burst in fault area[D]. Beijing: China Coal Research Institute, 2021.
[29]

JIANG Yaodong, WANG Tao, CHEN Tao, et al. Features of coal bumps influenced by normal faults in coal mining with hard roof and hard coal[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(S2): 3712-3718.
Google Scholar
[30]

ZHAO Yixin, WANG Hao, LU Zhiguo, et al. Characteristics of tremor time-space evolution and Coulomb stress distribution along the fault during workface excavation[J]. Journal of China Coal Society, 2018, 43(2): 340-347.
Google Scholar
[31]

TAN Yunliang, FAN Deyuan, LIU Xuesheng, et al. Research progress on chain instability control of surrounding rock for super-large section chamber group in deep coal mines[J]. Journal of China Coal Society, 2022, 47(1): 180-199.
Google Scholar
[32]

LIU Xuesheng, FAN Deyuan, TAN Yunliang, et al. Failure and instability mechanism of anchored surrounding rock for deep chamber group with super-large section under dynamic disturbances[J]. Rock and Soil Mechanics, 2021, 42(12): 3407-3418.
Google Scholar
[33]

YANG Linde. Inversion theory and engineering practice of geotechnical engineering problems[M]. Beijing: Science Press, 1996.
[34]

ZHANG Deheng, XU Fenqiang. Research into load release rate of surrounding rock in different tunnel excavations[J]. Journal of Nanjing Institute of Technology: Natural Science Edition, 2012, 10(1): 24-28.
Google Scholar
[35]
XIAO Tongqiang. Study on surrounding rock stability and control of deep roadway in thick coal seam under the action of tectonic stress[D]. Xuzhou: China University of Mining and Technology, 2011.
Journal of Mining Science and Technology
Volume 10 Issue 3,
June 2025
Pages 500-510
DOI: 10.19606/j.cnki.jmst.2025018
Cite this article:
BIAN H, ZHAO Y, WANG Y, et al. Effect of mining speed on the activation characteristics of normal faults in deep thick coal seams. Journal of Mining Science and Technology, 2025, 10(3): 500-510. https://doi.org/10.19606/j.cnki.jmst.2025018

35

Views

0

Downloads

0

Crossref

0

Scopus

0

CSCD

Altmetrics
Received: 06 October 2024
Revised: 26 December 2024
Published: 30 June 2025
© The Author(s) 2025

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Return