Author(s)

Chunhuan Liang ¹, Jie Li ¹, Junqing Meng ¹

Affiliation(s)

¹ Shandong University of Science and Technology, Qingdao, China

Corresponding Author

Chunhuan Liang

ABSTRACT

In the process of coal mining, unreasonable recovery sequence is likely to lead to rock subsidence and surface deformation. In order to ensure the safety of shaft works as well as surface buildings and structures during coal pillar recovery and extend the service life of the mine. In this paper, we adopt the continuous mining and charging mining method to recover the protected coal pillar with the engineering background of 3 coal recovery from the coal pillar under the dense building (structure) of Z coal mine industrial square. Based on the comprehensive consideration of the stability of coal pillar and resource recovery rate, the research methods such as theoretical analysis and numerical simulation are used to explore the overburden and surface subsidence reduction methods from the microscopic perspective of optimizing the sequence of supporting lane of coal mining with continuous mining and continuous charging for coal pillar 3 coal in coal mine industrial wide. It provides new ideas for reasonable recovery of coal pillar for mine protection.

KEYWORDS

Continuous mining and charging, recovery sequence optimization, numerical simulation, progressive bearing characteristics

CITE THIS PAPER

Chunhuan Liang, Jie Li, Junqing Meng, Study on the Optimization of the Sequence of Continuous Mining and Backfilling of 3 Coal in the Protected Coal Column. Environment, Resource and Ecology Journal (2022) Vol. 6: 59-68. DOI: http://dx.doi.org/10.23977/erej.2022.060409.

REFERENCES

[1] Wang Shuokang. Evolution of creep and overburden permeability in continuous mining and filling [D]. China University of Mining and Technology, 2021.
[2] Lu Nan. Research on Underpressure Coal Mining in Zhujiagou Village of Gaojiabao Coal Mine [D]. Xi'an University of Science and Technology, 2018.
[3] Guo Zhenxing, Ma Cailian. Research on short-wall mining technology and coal pillar retention under coal compression in Yangzhuang coal mine building [J]. Coal Mining, 2018, 23(03): 30-33+5.
[4] Sun Qiang, Zhang Jixiong, Ju Feng, et al. Research and application of schemes for constructing concrete pillars in large section finishing cut in backfill coal mining [J]. International Journal of Mining Science and Technology, 2015, 25(06): 915-920.
[5] Zhengzheng Cao, Ping Xu, Zhenhua Li, Minxia Zhang, Yu Zhao and Wenlong Shen. Joint Bearing Mechanism of Coal Pillar and Backfilling Body in Roadway Backfilling Mining Technology [J]. CMC: Computers, Materials & Continua, 2018, 54(2).
[6] Wang Fangtian, Gao Xiang, Feng Guangming, Chang Qingliang, Guo Guangli. Synergistic load-bearing mechanism of filler-support-coal body in deep coal seam ultra-high water-filled working face [J]. Journal of Mining and Safety Engineering, 2022, 39(04).
[7] Hu JH, Xi ZQ, Luo XW, Zhou KP, Ai ZH. Optimization of deep section recovery sequence based on rock body time-varying mechanical parameters [J]. Journal of Central South University (Natural Science Edition), 2017, 48(10): 2759-2764.

Sponsors, Associates, and Links

---

• International Journal of Geological Resources and Geological Engineering
  
  
• Big Geospatial Data and Data Science
  
  
• Solid Earth and Space Physics
  
  
• Environment and Climate Protection
  
  
• Journal of Cartography and Geographic Information Systems
  
  
• Offshore and Polar Engineering
  
  
• Physical and Human Geography
  
  
• Journal of Atmospheric Physics and Atmospheric Environment
  
  
• Trends in Meteorology
  
  
• Journal of Coastal Engineering Research
  
  
• Focus on Plant Protection
  
  
• Toxicology and Health of Environment
  
  
• Geoscience and Remote Sensing
  
  
• Advances in Physical Oceanography
  
  
• Biology, Chemistry, and Geology in Marine
  
  
• Water-Soil, Biological Environment and Energy
  
  
• Geodesy and Geophysics
  
  
• Journal of Structural and Quaternary Geology
  
  
• Journal of Sedimentary Geology
  
  
• International Journal of Polar Social Research and Review