Abstract
Mining activity near faults is the main reason for the frequent occurrence of rock burst accidents near faults. Based on on-site observation and monitoring, it is found that when the working face parallel to the fault strike is being mined, the overlying strata are more active. The degree of fault activation is intense. To deeply study the mechanism of induced rock bursts during the mining of underground coal seams, the Coulomb stress increment of the fault plane was introduced in a criterion for fault activation, and a mechanical model considering the fault slip induced by principal stress unloading was established. The results show that the risk of fault slip is related to the percentage of stress unloading (unloading amount) of the lateral principal stress and the axial principal stress and is especially sensitive to the unloading amount of the lateral principal stress. The excavation process of the working face was restored through numerical simulation, and it was found that the fault slip is closely related to the unloading stress in the horizontal and vertical directions, which verifies the accuracy of the theoretical model. The stress evolution of the overlying rock mass, the characteristics of fault slip, and their relationship during the mining of parallel faults are studied. The mechanical model is used to describe the fault sliding mechanism from the perspective of excavation unloading, and the research results provide theoretical support for fault rockburst prevention.
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References
Askaripour M, Saeidi A, Rouleau A, Mercier-Langevin P (2022) Rockburst in underground excavations: a review of mechanism, classification, and prediction methods. Underground Space. https://doi.org/10.1016/j.undsp.2021.11.008
Bodin P, Bilham R, Behr J, Gomberg J, Hudnut KW (1994) Static stress changes and the triggering of earthquakes. Bulletin-Seismological Society of America 84(3):499–510
Brace WF, Byerlee JD (1966) Stick-slip as a mechanism for earthquakes. Science 153(3739):990–992
Cai W, Dou L, Si G, Hu Y (2021) Fault-induced coal burst mechanism under mining-induced static and dynamic stresses. Engineering (beijing, China) 7(5):687–700. https://doi.org/10.1016/j.eng.2020.03.017
Faulkner DR, Mitchell TM, Healy D, Heap MJ (2006) Slip on ‘weak’ faults by the rotation of regional stress in the fracture damage zone. Nature 444(7121):922–925
Hofmann GF, Scheepers LJ (2011) Simulating fault slip areas of mining induced seismic tremors using static boundary element numerical modelling. Min Technol 120(1):53–64. https://doi.org/10.1179/037178411X12942393517291
Iannacchione AT, Tadolini SC (2016) Occurrence, predication, and control of coal burst events in the US. Int J Min Sci Technol 26(1):39–46. https://doi.org/10.1016/j.ijmst.2015.11.008
Ji HG, Ma HS, Wang JA, Zhang YH, Cao H (2012) Mining disturbance effect and mining arrangements analysis of near-fault mining in high tectonic stress region. Safety Sci 50(4):649–654. https://doi.org/10.1016/j.ssci.2011.08.062
Jiang L, Wang P, Zhang P, Zheng P, Xu B (2017) Numerical analysis of the effects induced by normal faults and dip angles on rock bursts. Comptes Rendus Mécanique 345(10):690–705. https://doi.org/10.1016/j.crme.2017.06.009
Li Z, Dou L, Cai W ,Wang G, He J, Gong S, Ding Y (2014) Investigation and analysis of the rock burst mechanism induced within fault-pillars. Int J Rock Mech Mining Sci (Oxford, England: 1997) 70:192–200. https://doi.org/10.1016/j.ijrmms.2014.03.014.
Li Z, Dou L, Cai W, Wang G, Ding Y, Kong Y (2016) Mechanical analysis of static stress within fault-pillars based on a voussoir beam structure. Rock Mech Rock Eng 49(3):1097–1105. https://doi.org/10.1007/s00603-015-0754-6
Li Z, Wang C, Shan R, Yuan H, Zhao Y, Wei Y (2021) Study on the influence of the fault dip angle on the stress evolution and slip risk of normal faults in mining. B Eng Geol Environ 80(5):3537–3551. https://doi.org/10.1007/s10064-021-02149-x
Manouchehrian A, Cai M (2018) Numerical modeling of rockburst near fault zones in deep tunnels. Tunn Undergr Sp Tech 80:164–180. https://doi.org/10.1016/j.tust.2018.06.015
Michalski A (1977) Assessment of rock burst hazard in the approach of a caved longwall to a fault. Przeglad Gorniczy 23(9):387–397
Ohnaka M (2003) A constitutive scaling law and a unified comprehension for frictional slip failure, shear fracture of intact rock, and earthquake rupture. J Geophys Res: Solid Earth 108(B2). https://doi.org/10.1029/2000JB000123
Pan YS, Zhang MT (1996) Analytical analysis of rock burst instability theory. Chin J Rock Mech Eng S1:504–510
Qi QX, Shi YW, Liu TQ (1997) Experimental study on stick-slip instability mechanism of rock burst. J China Coal Soc 02:34–38
Rathnaweera TD, Wu W, Ji Y, Gamage RP (2020) Understanding injection-induced seismicity in enhanced geothermal systems: from the coupled thermo-hydro-mechanical-chemical process to anthropogenic earthquake prediction. Earth-Sci Rev 205:103182. https://doi.org/10.1016/j.earscirev.2020.103182.
Sainoki A, Mitri HS (2014) Dynamic behaviour of mining-induced fault slip. Int J Rock Mech Mining Sci (Oxford, England : 1997) 66:19–29. https://doi.org/10.1016/j.ijrmms.2013.12.003.
Sainoki A, Mitri HS (2015) Effect of slip-weakening distance on selected seismic source parameters of mining-induced fault-slip. Int J Rock Mech Min 73:115–122. https://doi.org/10.1016/j.ijrmms.2014.09.019
Sainoki A, Mitri HS (2016) Effect of fault-slip source mechanism on seismic source parameters. Arab J Geosci 9(1):1–12. https://doi.org/10.1007/s12517-015-2027-9
Shan R, Li Z, Wang C et al (2021) Research on the mechanism of asymmetric deformation and stability control of near-fault roadway under the influence of mining. Eng Fail Anal 127: 105492. https://doi.org/10.1016/j.engfailanal.2021.105492.
Stein RS (1999) The role of stress transfer in earthquake occurrence. Nature (london) 402(6762):605–609
Taghipour M, Ghafoori M, Lashkaripour GR, Hafezi Moghaddas N, Molaghab A (2021) A geomechanical evaluation of fault reactivation using analytical methods and numerical simulation. Rock Mech Rock Eng 54(2):695–719. https://doi.org/10.1007/s00603-020-02309-7
Tai L, Gu S, Liu Z, Zou T, Lu J, Chen C (2021) Study on the regularity of ore pressure in overburden hard rock working face of overburden mining on reverse faults. Geotech Geol Eng 39(2):1591–1601. https://doi.org/10.1007/s10706-020-01579-w
Vilarrasa V (2017) The role of the stress regime on microseismicity induced by overpressure and cooling in geologic carbon storage. Geofluids 16(5): 941–953. https://doi.org/10.1111/gfl.12197
Wang H, Shi R, Song J, Tian Z, Deng D, Jiang Y (2021) Mechanical model for the calculation of stress distribution on fault surface during the underground coal seam mining. Int J Rock Mech Mining Sci (Oxford, England : 1997) 144: 104765. https://doi.org/10.1016/j.ijrmms.2021.104765.
Wang P, Luan H (2022) Size effect analysis of remaining coal pillar on rock burst caused by fault. B Eng Geol Environ 81(3):1–15. https://doi.org/10.1016/j.jrmge.2016.05.008
Wang T, Wang ZH, Jiang YD, Wang WJ (2014) Experimental study on stress distribution and evolution of surrounding rock during fault slip process under mining disturbance. J China Univ Mining Technol 43(04):588–592. https://doi.org/10.13247/j.cnki.jcumt.000115.
Wasilewski S (2020) Gas-dynamic phenomena caused by rock mass tremors and rock bursts. Int J Min Sci Technol 30(3):413–420. https://doi.org/10.1016/j.ijmst.2020.03.012
Wu Q, Wu Q, Yuan A, Wu Y (2021) Analysis of mining effect and fault stability under the influence of normal faults. Geotech Geol Eng 39(1):49–63. https://doi.org/10.1007/s10706-020-01400-8
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The work described in this paper is supported by the National Natural Science Foundation of China (number: 51878242) and National Natural Science Foundation of China (number: 52274148).
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Shan, R., Liu, D., Wang, H. et al. Study of the fracture instability and fault slip risk of overlying strata during mining near faults. Bull Eng Geol Environ 82, 94 (2023). https://doi.org/10.1007/s10064-023-03112-8
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DOI: https://doi.org/10.1007/s10064-023-03112-8