Academic Journal of Engineering and Technology Science, 2024, 7(1); doi: 10.25236/AJETS.2024.070102.
Jianfei Zhang1, Pengpeng Zhang1, Xuan Ji1, Yanheng Li1,2,3
1School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
2Key Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan, 056038, China
3Hebei Collaborative Innovation Center of Coal Exploitation, Hebei University of Engineering, Handan, 056038, China
The goaf produced by underground mining will produce subsidence on the surface, which will threat to the overlying buildings. In order to study surface subsidence, probability integral method and FLAC3D numerical simulation method were adopted to simulate and predict the coal seam mining in Gequan Mine. The results showed that the subsidence decreased gradually from the center of the goaf to both ends, from the underlying strata to the surface, and the result of probability integral calculation was slightly larger than that of numerical simulation. However, in the case of fully considering complex strata and insufficient mining, numerical simulation can better reflect the real situation in the mining surface subsidence of Gequan Mine, which has good reference significance.
Goaf, Probability integral method, Numerical simulation method, Surface subsidence
Jianfei Zhang, Pengpeng Zhang, Xuan Ji, Yanheng Li. Prediction of surface subsidence in Gequan coal mine based on probability integral and numerical simulation. Academic Journal of Engineering and Technology Science (2024) Vol. 7, Issue 1: 8-15. https://doi.org/10.25236/AJETS.2024.070102.
[1] Li J, Chen S, Wu Y, et al. How to make better use of intermittent and variable energy? A review of wind and photovoltaic power consumption in China [J]. Renewable and Sustainable Energy Reviews, 2021, 137: 110626.
[2] Bai X, Ding H, Lian J, et al. Coal production in China: past, present, and future projections [J]. International Geology Review, 2018, 60(5-6): 535-547.
[3] Li G, Hu Z, Li P, et al. Innovation for sustainable mining: Integrated planning of underground coal mining and mine reclamation [J]. Journal of Cleaner Production, 2022, 351: 131522.
[4] Yang B, Bai Z, Zhang J. Environmental impact of mining-associated carbon emissions and analysis of cleaner production strategies in China [J]. Environmental Science and Pollution Research, 2021, 28(11): 13649-13659.
[5] He L, Wu D, Ma L. Numerical simulation and verification of goaf morphology evolution and surface subsidence in a mine [J]. Engineering Failure Analysis, 2023, 144: 106918.
[6] He M, Wang Q, Wu Q. Innovation and future of mining rock mechanics [J]. Journal of Rock Mechanics and Geotechnical Engineering, 2021, 13(1): 1-21.
[7] Wang B, Xu J, Xuan D. Time function model of dynamic surface subsidence assessment of grout-injected overburden of a coal mine [J]. International Journal of Rock Mechanics and Mining Sciences, 2018, 104: 1-8.
[8] Li W-X, Gao C-Y, Yin X, et al. A visco-elastic theoretical model for analysis of dynamic ground subsidence due to deep underground mining [J]. Applied Mathematical Modelling, 2015, 39(18): 5495-5506.
[9] Kong D, Xiong Y, Cheng Z, et al. Stability analysis of coal face based on coal face-support-roof system in steeply inclined coal seam [J]. Geomechanics and Engineering, 2021, 25: 233-243.
[10] Sun Y, Zuo J, Karakus M, et al. A New Theoretical Method to Predict Strata Movement and Surface Subsidence due to Inclined Coal Seam Mining [J]. Rock Mechanics and Rock Engineering, 2021, 54(6): 2723-2740.
[11] Knothe S. Effect of time on formation of basin subsidence [J]. Arch Min Steel Ind, 1953, 1(1): 1-7.
[12] Zhang L, Cheng H, Yao Z, et al. Application of the improved knothe time function model in the prediction of ground mining subsidence: a case study from Heze City, Shandong Province, China [J]. Applied Sciences, 2020, 10(9): 3147.
[13] Wang J, Yang K, Wei X, et al. Prediction of Longwall Progressive Subsidence Basin Using the Gompertz Time Function [J]. Rock Mechanics and Rock Engineering, 2022, 55: 1-20.
[14] Marian D-P, Onica I, Marian R-R, et al. Surface subsidence prognosis using the influence function method in the case of livezeni mine [J]. Mining Revue/Revista Minelor, 2017, 23(1).
[15] Yuan Y, Li H, Zhang H, et al. Improving Reliability of Prediction Results of Mine Surface Subsidence of Northern Pei County for Reusing Land Resources [J/OL] 2020, 10(23):10.3390/app10238385
[16] Zhu X, Guo G, Liu H, et al. Surface subsidence prediction method of backfill-strip mining in coal mining [J]. Bulletin of Engineering Geology and the Environment, 2019, 78: 1-14.
[17] Yan W, Chen J, Yan Y. A new model for predicting surface mining subsidence: the improved lognormal function model [J]. Geosciences Journal, 2019, 23(1): 165-174.
[18] Xing X, Zhu Y, Yuan Z, et al. Predicting mining-induced dynamic deformations for drilling solution rock salt mine based on probability integral method and weibull temporal function [J]. International Journal of Remote Sensing, 2021, 42(2): 639-671.
[19] Chi S, Wang L, Yu X, et al. Research on Prediction Model of Mining Subsidence in Thick Unconsolidated Layer Mining Area [J]. IEEE Access, 2021, 9: 23996-24010.
[20] Vyazmensky A. Numerical modeling of surface subsidence associated with block cave mining using a FEM/DEM approach [D]. Burnaby: Simon Fraser University, 2008.
[21] Sepehri M, Apel D B, Hall R A. Prediction of mining-induced surface subsidence and ground movements at a Canadian diamond mine using an elastoplastic finite element model [J]. International Journal of Rock Mechanics and Mining Sciences, 2017, 100: 73-82.
[22] Mirsalari S E, Fatehi Marji M, Gholamnejad J, et al. A boundary element/finite difference analysis of subsidence phenomenon due to underground structures [J]. Journal of Mining and Environment, 2017, 8(2): 237-253.
[23] Yang Z L. Prediction of surface subsidence in underground mining seam based on the boundary value method [J]. Rock Soil Mech, 2010, 31: 232-236.
[24] Cheng G, Chen C, Li L, et al. Numerical modelling of strata movement at footwall induced by underground mining [J]. International Journal of Rock Mechanics and Mining Sciences, 2018, 108: 142-156.
[25] Yu X Y, Wang Z S, Yang Y, et al. Movement rule of overburden in fully mechanized caving mining with thick depth and high mining height based on 3DEC [J]. Journal of Mining and Strata Control Engineering, 2021, 3(1): 28-38.
[26] Xinjie L, Cheng Z. Changes in subsidence-field surface movement in shallow-seam coal mining [J]. Journal of the Southern African Institute of Mining and Metallurgy, 2019, 119.
[27] Guo W, Zhao G, Bai E, et al. Effect of overburden bending deformation and alluvium mechanical parameters on surface subsidence due to longwall mining [J]. Bulletin of Engineering Geology and the Environment, 2021, 80: 2751-2764.
[28] Li P, Hu Z, Fu Y, et al. Normality Test for Influence Function of Mining Surface Subsidence Based on Network Observation Station [J]. Mathematical Problems in Engineering, 2022, 2022: 2201996.
[29] Li P, Li Y, Li Q, et al. A Novel Analytical Model of Mining Subsidence Considering Time Effect Based on the Probability Integral Theory [J/OL]. Sustainability, 2022, 14(21):10.3390/su142114443
[30] Wang G, Li P, Wu Q, et al. Numerical Simulation of Mining-Induced Damage in Adjacent Tunnels Based on FLAC3D [J]. Advances in Civil Engineering, 2021, 2021: 9855067.
[31] Pariseau W G. Design analysis in rock mechanics [M]. CRC Press, 2017.