Abstract
High-intensity mining effect induced by long working face mining causes dynamic disasters to safe and efficient coal mining. For the purpose of in-depth study of the movement law of earth’s surface on ultra-long working face, this paperused to build a numerical model, analyzes the law of roof-to-floor strata behaviors in coal bed during mining, and studies the weakening of roof-to-floor parameters in coal bed, bearing pressure and the law of roof caving and rock strata movement. Analyzes the face length effect resulted from the difference in face lengths. It has been recognized that the sphere of influence of bearing pressure changes from small to large and then to small, and changes in distribution of arch bottom and arch height at the plastic failure zone are further intensified over advancing of the working face, moreover, the movement of rock strata is subject to the cumulative influence of the advancing direction of the working face and the face length effect. The above-mentioned research results can serve as a theoretical basis for practical engineering.
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References
Ding GL, Lu XH, Wu SG, Liu YQ (2021) Research on strata behavior regularity and support adaptability of deep ultra-long fully mechanized mining face. Coal Sci Technol 1–6
Fan ZZ, Fu SJ, Pan LM (2020) Research on structural characteristics of overlying rock caving in deep ultra-long island working face. Coal Eng 52(02):86–90
Fu SJ, Fan ZZ, Zhang XF, Pan LM, Zhao J (2019) Study on the relationship between abnormal strata pressure behaviors and gas emission in ultra-long working face. Coal Eng 51(05):139–142
Guo ZB, Yang S (2018) The law of strata pressure behaviors in gob-side entry driving of ultra-long island working face and reason analysis. Coal Min Technol 23(05):91–94
Jin BS, Wang AW, Huang ZD, Zhang J (2019) Research on behavior law of mine behavior in ultra-long fully mechanized caving face in the ultra-thick coal seam of shuonan mining area. Coal Mine Saf 50(12):203–206
Kang HP, Jiang PF, Huang BX, Guan XM, Wang ZG, Wu YZ, Gao FQ, Yang JW, Cheng LX, Zheng YF, Li JZ (2020) Collaborative control technology of support-modification-pressure relief of wall rock around thousand-meter deep tunnel in coal mine. J China Coal Soc 45(03):845–864
Liu WT (2019) Research on key technologies for ultra-long fully mechanized caving working face in soft and thick coal seam. Coal Eng 51(12):38–43
Shi JJ, Feng JC, Peng R, Zhu QJ (2020) Analysis of deformation damage in deep well roadway and supporting countermeasures. Geotech Geol Eng 38:6899
Wang SB, Huang QX (2018) Research on strata behavior regularity of 400 m ultra-long fully mechanized mining face in shallow coal seam. Coal Sci Technol 46(S1):75–80
Wang ZQ, Wang JM, Guo L, Xu J (2017a) Study on the technology of gob-side two-entry mining in working face with ultra-long advance. J Min Sci 2(04):364–370
Wang ZQ, Wang HH, Shi L, Su Y (2017b) The mechanism of two-entry layout gob-side entry driving in high-strength working face with ultra-long advance. J China Coal Soc 42(S2):302–310
Wang ZQ, Su Y, Song ZY, Shi L, Sun ZW (2018) Two-entry layout gob-side entry driving technology in working face with ultra-long advance and analysis of application effect. Chin J Rock Mech Eng 37(S2):4170–4176
Wang JC, Yang SL, Yang BB, Li Y, Wang ZH, Yang Y, Ma YY (2019) Main roof zonal rapture model and support resistance distribution characteristics of ultra-long working face in deep mine. J China Coal Soc 44(01):54–63
Wang JC, Wang ZH, Yang J, Tang YS, Li BB, Meng QB (2020) Features and application of mining stress rotation on ultra-long working face in thousand-meter deep mine. J China Coal Soc 45(03):876–888
Yang Z, Xu D, Gao MS, Xue XQ, Zhang DX (2020) Research on the key technology of pressure adjustment for final mining backout caving in fully mechanized coal mining face of ultra-long-large mining height. Coal Eng 52(08):77–83
Yao H, Jia X (2017) Analysis on the cut-through crushing accident of ultra-long fully-mechanized mining face in shallow thick coal seam. Coal Sci Technol 45(S2):77–81
Yu WJ, Pan B, Zang F, Yao SF, Liu FF (2019a) Deformation characteristics and determination of optimum supporting time of alteration rock mass in deep mine. KSCE J Civil Eng 23(11):4921
Yu WJ, Wu GS, An BF, Wang P, Wu BS (2019b) Experimental study on the brittle-ductile response of a heterogeneous soft coal rock mass under multifactor coupling. Geofluids
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This research has been financed by the Natural Science Foundation of Hebei Province (E2021508008). This research has been financed by the National Natural Science Foundation of China (Grant nos. 51804119, 51874002, 51974125).
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Rui, P., Meiling, F., Ruile, R. et al. Study on the Law of Earth’s Surface Movement on Ultra-Long Working Face. Geotech Geol Eng 40, 587–603 (2022). https://doi.org/10.1007/s10706-021-01886-w
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DOI: https://doi.org/10.1007/s10706-021-01886-w