Abstract
The compressive deformation of backfill materials is large due to the large mining depth of coal seams and high mining-induced stress during the deep backfill mining. Therefore, the controlling effect on strata movement significantly differs from that in shallow coal seams. The research aims to explore the influences of the compressive deformation of backfill materials on the strata movement and stress evolution in deep backfill mining. For this purpose, the backfill panel in Xinjulong Coal Mine, Shandong Province, China was taken as an engineering case study; the changes in displacement, structural evolution, and stress distribution of overlying strata in the panel under compression ratios of backfill materials of 70%, 40%, and 20% were investigated. In addition, the influences of different compressive deformations of the backfill materials on the controlling effect on overlying strata were compared and investigated. The results showed that the displacement of overlying strata in the backfill panel decreases with the decreasing compression ratio: the maximum displacement of overlying strata decreases from 24.32 to 13.74 and 6.83 mm as the compression ratio is reduced from 70 to 40%, and 20%, respectively. Relative to the overlying strata at a compression ratio of 70%, the vertical displacements at compression ratios of 40 and 20% separately decrease by 43.5 and 71.9%. The lower the compression ratio of backfill materials, the better the control of overlying strata. The results provide theoretical support for optimizing the performance of backfill materials in deep backfill mines and controlling the ground pressure in the stope.
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References
Abtin J, Michel A, Li L (2018) Analysis of the stress distribution in inclined backfilled stopes using closed-form solutions and numerical simulations. Geotech Geol Eng 36:1011–1036. https://doi.org/10.1007/s10706-017-0371-0
Behera SK, Mishra DP, Singh P, Mishra K, Mandal SK, Ghosh CN, Kumar R, Mandal PK (2021) Utilization of mill tailings, fly ash and slag as mine paste backfill material: review and future perspective. Constr Build Mater 309:125120. https://doi.org/10.1016/j.conbuildmat.2021.125120
Castro-Gomes JP, Silva AP, Cano RP, Suarez JD, Albuquerque A (2012) Potential for reuse of tungsten mining waste-rock in technical-artistic value added products. J Clean Prod 25:34–41. https://doi.org/10.1016/j.jclepro.2011.11.064
Feng, GR, Li, Z and Guo, YX (2016) Mix ratio optimization of cemented coal gangue backfill (CGB) based on response surface method. J Residuals Sci Tech 13(3):175–184. https://doi.org/10.12783/issn.1544-8053/13/3/1
Feng GR, Qi TY, Du XJ (2018) Acoustic emission and ultrasonic characteristics in the failure process of cemented waste concrete-coal gangue backfilling (CWCGB) under uniaxial loading. Adv Civ Eng 2018:8960806. https://doi.org/10.1155/2018/8960806
Hou JF, Guo ZP, Li JB, Zhao LJ (2021) Study on triaxial creep test and theoretical model of cemented gangue-fly ash backfill under seepage-stress coupling. Constr Build Mater 273. https://doi.org/10.1016/j.conbuildmat.2020.121722
Huang P, Spearing S, Ju F, Jessu KV, Guo S (2018) Effects of solid backfilling on overburden strata movement in shallow depth longwall coal mines in West China. J Geophys Eng 15(5):2194–2208. https://doi.org/10.1088/1742-2140/aac62c
Huang P, Spearing S, Ju F, Jessu KV, Wang Z, Ning P (2019a) Control effects of five common solid waste backfilling materials on in situ strata of Gob. Energies 12(1):154. https://doi.org/10.12783/issn.1544-8053/13/3/110.3390/en12010154
Huang YL, Li JM, Ma D, Gao HD, Guo YC, Ouyang SY (2019b) Triaxial compression behaviour of gangue solid wastes under effects of particle size and confining pressure. Sci Total Environ 693:133607. https://doi.org/10.1016/j.scitotenv.2019.133607
Jahanbakhshzadeh A, Aubertin M, Li L (2017) A new analytical solution for the stress state in inclined backfilled mine stopes. Geotech Geol Eng 35:1151–1167. https://doi.org/10.1007/s10706-017-0171-6
Kim JH, Chang B, Kim BJ, Park C, Goo JY, Lee YJ, Lee S (2020) Applicability of weathered coal waste as a reactive material to prevent the spread of inorganic contaminants in groundwater. Environ Sci Pollut R 27(36):45297–45310. https://doi.org/10.1007/s11356-020-10418-7
Li BY, Yan H, Zhang JX, Zhou N (2020) Compaction property prediction of mixed gangue backfill materials using hybrid intelligence models: a new approach. Constr Build Mater 247:118633. https://doi.org/10.1016/j.conbuildmat.2020.118633
Li M, Zhang JX, Huang YL, Zhou N (2017) Effects of particle size of crushed gangue backfill materials on surface subsidence and its application under buildings. Environ Earth Sci 76(17):603. https://doi.org/10.1007/s12665-017-6931-z
Li M, Zhang JX, Wu ZY, Sun K (2019) Calculation and monitoring analysis of stress distribution in a coal mine gob filled with waste rock backfill materials. Arab J Geosci 12(14):418. https://doi.org/10.1007/s12517-019-4584-9
Liu, XS, Ning, J G, Tan, YL, Xu, Q, Fan DY (2018) Coordinated supporting method of gob-side entry retaining in coal mines and a case study with hard roof. Geomech. Eng 15(6):1173–1182. https://doi.org/10.12989/gae.2018.15.6.1173
Ma D, Duan H, Zhang J, Bai H (2022b) A state-of-the-art review on rock seepage mechanism of water inrush disaster in coal mines. Int J Coal Sci Technol 9:50. https://doi.org/10.1007/s40789-022-00525-w
Ma D, Duan HY, Zhang JX, Liu XW, Li ZH (2022a) Numerical simulation of water-silt inrush hazard of fault rock: a three-phase flow model. Rock Mech Rock Eng 55:5163–5182. https://doi.org/10.1007/s00603-022-02878-9
Ma D, Zhang JX, Duan HY, Huang YL, Li M, Sun Q, Zhou N (2021) Reutilization of gangue wastes in underground backfilling mining: overburden aquifer protection. Chemosphere 264:128400. https://doi.org/10.1016/j.chemosphere.2020.128400
Mjonono D, Harrison STL, Kotsiopoulos A (2019) Supplementing structural integrity of waste rock piles through improved packing protocols to aid acid rock drainage prevention strategies. Miner Eng 135:13–20. https://doi.org/10.1016/j.mineng.2019.02.029
Moghadam MJ, Ajalloeian R, Hajiannia A (2019) Preparation and application of alkali-activated materials based on waste glass and coal gangue: a review. Constr Build Mater 221:84–98. https://doi.org/10.1016/j.conbuildmat.2019.06.071
Muhammad ZM, Hani M, Cecile K (2018) Dynamic model validation using blast vibration monitoring in mine backfill. Int J Rock Mech Min 107:48–54. https://doi.org/10.1016/j.ijrmms.2018.04.047
Ning JG, Liu XS, Tan J, Gu QH, Tan YL, Wang J (2018) Control mechanisms and design for a “coal-backfill-gangue” support system for coal mine gob-side entry retaining. Int J Oil Gas Coal t 18:444–466. https://doi.org/10.1504/IJOGCT.2018.093132
Qiu JS, Zhu MY, Zhou YX, Guan X (2021) Effect and mechanism of coal gangue concrete modification by fly ash. Constr Build Mater 294:123563. https://doi.org/10.1016/j.conbuildmat.2021.123563
Qureshi AA, Kazi TG, Baig JA, Arain MB, Afridi HI (2020) Exposure of heavy metals in coal gangue soil, in and outside the mining area using BCR conventional and vortex assisted and single step extraction methods. Impact on orchard grass. Chemosphere 255:126960. https://doi.org/10.1016/j.chemosphere.2020.126960
Salguero F, Grande JA, Valente T, Garrido R, De la Torre ML, Fortes JC, Sanchez A (2014) Recycling of manganese gangue materials from waste-dumps in the Iberian Pyrite Belt - application as filler for concrete production. Constr Build Mater 54:363–368. https://doi.org/10.1016/j.conbuildmat.2013.12.082
Seryakov VM (2014) Mathematical modeling of stress-strain state in rock mass during mining with backfill. J Min Sci 50(5):847–854. https://doi.org/10.1134/S1062739114050044
Sun Q, Meng GH, Sun K, Zhang JX (2020) Physical simulation experiment on prevention and control of water inrush disaster by backfilling mining under aquifer. Environ Earth Sci 79(18):429. https://doi.org/10.1007/s12665-020-09174-1
Sun Q, Zhang JX, Zhou N (2018) Study and discussion of short- strip coal pillar recovery with cemented paste backfill. Int J Rock Mech Min 104:147–155. https://doi.org/10.1016/j.ijrmms.2018.01.031
Wang SF, Li XB, Wang SY (2017) Separation and fracturing in overlying strata disturbed by longwall mining in a mineral deposit seam. Eng Geol 226:257–266. https://doi.org/10.1016/j.enggeo.2017.06.015
Wu JY, Jing HW, Yin Q, Yu LY, Meng B, Li SC (2020) Strength prediction model considering material, ultrasonic and stress of cemented waste rock backfill for recycling gangue. J Clean Prod 276:123189. https://doi.org/10.1016/j.jclepro.2020.123189
Yan YL, Yang C, Peng L, Li RM, Bai HL (2016) Emission characteristics of volatile organic compounds from coal-, coal, gangue-, and biomass-fired power plants in China. Atmos Environ 143:261–269. https://doi.org/10.1016/j.atmosenv.2016.08.052
Yin DW, Chen SJ, Sun XZ, Jiang N (2021) Effects of interface angles on properties of rock-cemented coal gangue-fly ash backfill bi-materials. Geomech Eng 21(1):81–89. https://doi.org/10.12989/gae.2021.24.1.081
Zhang JX, Deng XJ, Zhao X, Ju F, Li BY (2017) Effective control and performance measurement of solid waste backfill in coal mining. Int J Min Reclam Environ 31(2):91–104. https://doi.org/10.1080/17480930.2015.1120384
Zhang YJ, Feng GR, Zhang M, Ren HR, Bai JW, Guo YX, Jiang HN, Kang LX (2016) “Residual coal exploitation and its impact on sustainable development of the coal industry in China”, Energ. Policy 96:534–541. https://doi.org/10.1016/j.enpol.2016.06.033
Zhao TB, Fu ZY, Li G (2018) In situ investigation into fracture and subsidence of overburden strata for solid backfill mining. Arab J Geosci 11(14):398. https://doi.org/10.1007/s12517-018-3769-y
Zhu CL, Zhang JX, Zhou N, Li M, Guo YB (2021) Permeability of sand-based cemented backfill under different stress conditions: effects of confining and axial pressures. Geofluids 2021:6657662. https://doi.org/10.1155/2021/6657662
Zhu XJ, Guo GL, Liu H, Chen T, Yang XY (2019) Experimental research on strata movement characteristics of backfill-strip mining using similar material modelling. B Eng Geol Environ 78(4):2151–2167. https://doi.org/10.1007/s10064-018-1301-y
Funding
This work was supported by the National Natural Science Foundation of China [grant number 52004271]; the China Postdoctoral Science Foundation [grant number 2021M693417]; the Independent Research Project of State Key Laboratory of Coal Resources and Safe Mining, CUMT [grant number SKLCRSM22X001]; the Jiangsu Postdoctoral Research Funding Program [grant number 2021K039A].
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Meng Li: Methodology, visualization, formal analysis, investigation, and writing—original draft. Jixiong Zhang and Peng Huang: Supervision. Dan Ma: Writing—review and editing. Yifan Peng: Writing—review and editing. Cunli Zhu: Writing—review and editing.
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Li, M., Peng, Y., Zhang, J. et al. Effects of compressive deformation of backfill materials on strata movement and stress evolution in deep gangue backfill mining. Bull Eng Geol Environ 81, 361 (2022). https://doi.org/10.1007/s10064-022-02862-1
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DOI: https://doi.org/10.1007/s10064-022-02862-1