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Research on short wall continuous mining technology with full roof falling and roof control measures

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Abstract

Short wall mining technology is an important method to coal resource mining in the United States, Australia and other countries, and also one of important methods to boundary coal resource recovery in China. Short wall mining technology through leaving a large number of coal pillars to support and control roof, induces a series of accidents, such as large area roof suspended, collapse and shock, which restricts the further popularization and application of short wall mining technology seriously. By improving the existing short wall mining technology, the article proposed short wall continuous mining technology with full roof falling, and designed measures to control roof. The main research work is as follows: (1) By reducing and eliminating coal pillars in mining section as much as possible, including entry protecting pillar and pillar between caverns, also ensured stability of roof during mining period at the same time; after mining, roof can be collapse, to prevent large area roof suspended and collapsed inducing shock accidents; mining process and equipment of short wall continuous mining technology with full roof falling, were designed comprehensively. (2) Measures to control roof of short wall continuous mining technology with full roof falling are designed, using self-moving hydraulic support to control roof of mining cavern, anchor bolt and cable to ensure branch and cross entries stable during mining period, and forced caving technology to control large area roof suspended; (3) Short wall continuous mining technology with full roof falling and roof control measures were successfully industrialized in 42,210 boundary coal face of Yujialiang coal mine, which belong to Shenhua energy group in Inner Mongolia. The research result is significant to enrich and develop short wall mining technology.

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References

  • Gao K, Liu Z, Liu J, Deng D, Gao Y, Kang Y, Huang K (2013) Application of deep borehole blasting to gob side entry retaining forced roof caving in hard and compound roof deep well. Chin J Rock Mech Eng 32(8):1588–1594

    Google Scholar 

  • Ge H, Li C, Yang J (2013) Application of short wall box type coal mining method to strip coal pillar mining. Coal Sci Technol 41(12):8–10

    Google Scholar 

  • Gu T, Song X (2008) The air impulsion coupling model with roof caving and its difference solution under closed goaf. J Chin Coal Soc 33(11):1211–1215

    Google Scholar 

  • Li H, Xu J (2006) Practice of high efficiency short wall mechanized mining under villages. J Min Saf Eng 23(2):177–181

    Google Scholar 

  • Liu K, Wang J, Xu J (2005) Study on mining system and stability of coal pillar in short wall mechanized mining. J Chin Univ Min Technol 34(1):27–32

    Google Scholar 

  • Li S, Li D, Sun Z (2013) Study on the time difference from initiating cracking to large area caving of thick-hard roof on shallow Wongawilli face. J Min Saf Eng 30(4):538–541

    Google Scholar 

  • Song X, Lian Q, Xing P, Fu Y, Li Z (2009) Research on air bumping disaster induced by large roof falling in goaf. Coal Sci Technol 37(4):1–4

    Google Scholar 

  • Wang S (2014) Study on roof movement law of short wall continuous coal mining face. Coal Sci Technol 42(3):121–124

    Google Scholar 

  • Wang X (2006) Application of wongawilli mining technology to Shendong mining area. Coal Sci Technol 34(8):36–38

    Google Scholar 

  • Xi J, Zang C, Zhang C, Zhou L, Xie S, Chen Y (2017) Research and application on short wall of fully mechanized workface in large mining height gas eliminating outburst technology. Coal Technol 36(5):188–190

    Google Scholar 

  • Xie X, Gao S, Ren Y (2011) Study on rational coal pillar width for mechanized short wall mining with continuous miner. Coal Sci Technol 39(12):16–19

    Google Scholar 

  • Xu J, Liu K, Lu A (2011) Viscoelasticity analysis and application of key strata of covering rock to short wall mining. Chin J Rock Mech Eng 25(6):1147–1151

    Google Scholar 

  • Zhang K, Wang S, Jiang J, Pan R, Ji S (2017) The reasonable width of coal pillars in the short-wall continuous mining with full roof falling. J Min Saf Eng 34(4):723–729

    Google Scholar 

  • Zhang Y, Cao S, Lai X, Zhao C, Du S (2019) Study on the development mechanism and control of water conducting fractures in short-wall block backfill mining. J Min Saf Eng 36(6):1086–1092

    Google Scholar 

  • Zhang Z (2018) Study on the initial caving technology with hydraulic fracturing of hard and difficult to fall roof. Coal Sci Technol 46(S2):86–89

    Google Scholar 

  • Zheng H, Song C, Hu L, Xiao G, Li M, Zhang X (2010) Simulation of air shock waves induced by large scale roof caving in huge mined out area. J Univ Sci Technol Beijing 32(3):277–281

    Google Scholar 

  • Zhou M (2014) Safe and efficient short wall mining with the continuous miner. Chi Uni Min Tech Pre

  • Zhou M, Cao S, Jiang X (2014a) Research on the application of continuous miner short wall mining technology in gently inclined long wall face. J Min Saf Eng 31(1):55–59

    Google Scholar 

  • Zhou M (2007) Mine strata pressure behave features of mechanized short wall. Coal Sci Technol 35(9):35–39

    Google Scholar 

  • Zhou M, Cao S, Jiang X (2014b) The law of rock pressure in the stope with blocking mining by the continuous miner. J Min Saf Eng 31(3):413–417

    Google Scholar 

  • Zhuang X, Zang C, Zhuang W (2014) Forced roof caving technology of hard roof in short wall coal mining face. Coal Sci Technol 42(11):14–16

    Google Scholar 

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Acknowledgements

This research was supported by National Natural Science Foundation of China (51904177) and Shandong Natural Science Foundation (ZR2019BEE078).

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Authors and Affiliations

  1. School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, China

    Shuli Wang, Guangli Zhu & Yuchen Wang

  2. Guizhou Institute of Technology, Guiyang, 550003, China

    Kaizhi Zhang

Authors
  1. Shuli Wang
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  2. Guangli Zhu
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  3. Kaizhi Zhang
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  4. Yuchen Wang
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Contributions

All the authors contributed extensively to the work. Shuli Wang designed short wall continuous mining technology with full roof falling. Guangli Zhu wrote the paper. Kaizhi Zhang designed measures to control roof. Yuchen Wang draw the figure and collected data of industrial test.

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Correspondence to Guangli Zhu.

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Wang, S., Zhu, G., Zhang, K. et al. Research on short wall continuous mining technology with full roof falling and roof control measures. Geotech Geol Eng 39, 4877–4886 (2021). https://doi.org/10.1007/s10706-021-01800-4

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  • DOI: https://doi.org/10.1007/s10706-021-01800-4

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