Skip to main content
SpringerLink
Log in

Double-factor control method for calculating hydraulic support working resistance for longwall mining with large mining height

  • Original Paper
  • Published:
Arabian Journal of Geosciences Aims and scope Submit manuscript

Abstract

To control surrounding rock in longwall mining with large mining height, we consider the coal seam conditions in Jinjitan Coal Mine to analyze how roof failure and coal wall spalling affect the stress path. A simplified dynamics model of surrounding rock and hydraulic support is developed based on the mechanical model of roof stratum that involves the cantilever beam and the voussoir beam. The proposed criterion for the supporting force well fits with the roof stratum stability. The process of coal wall spalling is divided into two stages: First, the coal wall transitions from an elastic state to a plastic state, and then the plastic coal wall slides unstably. To analyze how the supporting force and guarding force affect the coal wall spalling in the two stages, we develop the tensile-cracking-sliding mechanical model of coal wall spalling, which allows us to calculate the critical guarding force. Through analyzing the relationship between the supporting force and guarding force, we propose the double-factor control method to calculate the working resistance of the hydraulic support and apply it to the working face with 8.0 m mining height in Jinjitan Coal Mine.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

References

  • Bai QS, Tu SH, Li ZX, Tu HS (2015) Theoretical analysis on the deformation characteristics of coal wall in a longwall top coal caving face. Int J Min Sci Technol 25:199–204

    Article  Google Scholar 

  • Brian PE, Andrew HJR (1992) Change in quartz solubility and porosity due to effective stress: an experimental investigation of pressure solution. Geology. 20:451–454

    Article  Google Scholar 

  • Das SK (2000) Observations and classification of roof strata behavior over longwall coal mining panels in India. Int J Rock Mech Min Sci 37:585–597

    Article  Google Scholar 

  • Fang XQ (2002) Study on stability of support-surrounding rocks and its control in fully-mechanized top-coal caving face [Ph.D]. China University of Mining and Technology, Xuzhou (In Chinese)

    Google Scholar 

  • Fang XQ, He J, Li HC (2009) A study of the rib fall mechanism in soft coal and its control at a fully-mechanized top-coal caving face. J China Univ Min Technol 38:640–644 (In Chinese)

    Google Scholar 

  • Firth RC (2015) A holistic examination of the load rating design of longwall shields after more than half a century of mechanized longwall mining. Int J Min Sci Technol 25:687–706

    Article  Google Scholar 

  • Ghosh GK, Sivakumar C (2018) Application of underground microseismic monitoring for ground failure and secure longwall coal mining operation: a case study in an Indian mine. J Appl Geophys 150:21–39

    Article  Google Scholar 

  • Ju JF, Xu JL (2013) Structural characteristics of key strata and strata behavior of a fully mechanized longwall face with 7.0 m height chocks. Int J Rock Mech Min Sci 58:46–54

    Article  Google Scholar 

  • Kuriqi A, Ardiçlioglu M, Muceku Y (2016) Investigation of seepage effect on river dike’s stability under steady state and transient conditions. Pollack Periodica 11:87–104

    Article  Google Scholar 

  • Liang LC, Tian JJ, Zheng H, Jiao SJ (2016) A study on force transmission in a hydraulic support under impact loading on its canopy beam. J China Coal Soc 3:311–321 (In Chinese)

    Google Scholar 

  • Ma D, Cai X, Li Q, Duan H (2018) In-situ and numerical investigation of groundwater inrush hazard from grouted karst collapse pillar in longwall mining. Water. 10:1187

    Article  Google Scholar 

  • Meng XR, Wang HP, Liu CH, Zhang Y (2010) Selection principle and development status of thick seam mining methods in China. Coal Sci Technol 37:39–44 (In Chinese)

    Google Scholar 

  • Mondal D, Roy PNS, Behera PK (2017) Use of correlation fractal dimension signatures for understanding the overlying strata dynamics in longwall coal mines. Int J Rock Mech Min Sci 91:210–221

    Article  Google Scholar 

  • Muceku Y, Korini O, Kuriqi A (2016) Geotechnical analysis of hill’s slopes areas in heritage town of Berati, Albania. Period Polytech-Civ 60:61–73

    Article  Google Scholar 

  • Ning Y (2009) Mechanism and control technique of the rib spalling in fully mechanized mining face with great mining height. J China Coal Soc 34:50–52 (In Chinese)

    Google Scholar 

  • Pang YH, Wang GF, Ding ZW (2014) Mechanical model of water of inrush from coal seam floor based on triaxial seepage experiments. Int J Coal Sci Technol 1:428–433

    Article  Google Scholar 

  • Peng SS (2015) Topical areas of research needs in ground control: a state of the art review on coal mine ground control. Int J Min Sci Technol 25:1–6

    Article  Google Scholar 

  • Qian MG, Miao XX, Xu JL (1996) Theoretical study of key stratum in ground control. J China Coal Soc 21:225–230 (in Chinese)

    Google Scholar 

  • Rezaei M, Hossaini MF, Majdi A (2015) A time-independent energy model to determine the height of destressed zone above the mined panel in longwall coal mining. Tunn Undergr Sp Tech 47:81–92

    Article  Google Scholar 

  • Singh R, Singh TN (1999) Investigation into the behavior of a support system and roof strata during sublevel caving of a thick coal seam. Geotech Geol Eng 17:21–35

    Article  Google Scholar 

  • Singh R, Mandal PK, Singh AK, Kumar R, Maiti J, Ghosh AK (2008) Upshot of strata movement during underground mining of a thick coal seam below hilly terrain. Int J Rock Mech Min Sci 45:29–46

    Article  Google Scholar 

  • Song ZQ, Jiang JQ (1996) The current research situation and developing orientation of strata control in coal mine. Chin J Rock Mech Eng 15:128–134 (In Chinese)

    Google Scholar 

  • Takashi S, Tri K, Akihiro H, Hideki S, Kikuo M (2016) Application of highwall mining system in weak geological condition. Int J Coal Sci Technol 3:311–321

    Article  Google Scholar 

  • Thin IGT, Pine RJ, Trueman R (1993) Numerical modelling as an aid to the determination of the stress distribution in the goaf due to longwall coal mining. Int J Rock Mech Min Sci Geomech Abstr 30:1403–1409

    Article  Google Scholar 

  • Trueman R (1990) A finite element analysis for the establishment of stress development in a coal mine caved waste. Min Sci Technol 10:247–252

    Article  Google Scholar 

  • Wang GF, Pang YH (2016) Shield-roof adaptability evaluation method based on coupling of parameters between shield and roof strata. J China Coal Society 41:1348–1353 (In Chinese)

  • Wang GF, Pang YH (2017) Surrounding rock control theory and longwall mining technology innovation. Int J Coal Sci Technol 4:301–309

    Article  Google Scholar 

  • Wang JC, Wang ZH (2015) Stability of main roof structure during the first weighting in shallow high-intensity mining face with thin bedrock. J Min Saf Eng 32:175–181 (in Chinese)

  • Xu JL, Zhu WB, Ju JF (2014) Supports crushing types in the longwall mining of shallow seams. J China Coal Soc 39:1625–1634 (In Chinese)

    Google Scholar 

  • Yuan Y, Tu SH, Wu Q, Ma XT, Tu HS, Sun LL (2011) Mechanics of rib spalling of high coal walls under fully-mechanized mining. Min Sci Technol 21:129–133 (In Chinese)

    Google Scholar 

Download references

Acknowledgments

The authors express their gratitude to the Jinjitan Coal Mine for providing the field measurements and observations used in this work.

Funding

The study was financially supported by the National Key Research and Development Program (2017YFC0603005).

Author information

Authors and Affiliations

  1. Coal Mining and Designing Department, Tiandi Science & Technology Co., Ltd., Beijing, 100013, China

    Yihui Pang & Guofa Wang

  2. Coal Mining Branch, China Coal Research Institute, Beijing, 100013, China

    Yihui Pang & Guofa Wang

  3. School of Mines, Key Laboratory of Deep Coal Resource Mining, Ministry of Education, China University of Mining & Technology, Xuzhou, 221116, Jiangsu, China

    Qiangling Yao

Authors
  1. Yihui Pang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Guofa Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Qiangling Yao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yihui Pang.

Additional information

Responsible Editor: Zhen-Dong Cui

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Pang, Y., Wang, G. & Yao, Q. Double-factor control method for calculating hydraulic support working resistance for longwall mining with large mining height. Arab J Geosci 13, 252 (2020). https://doi.org/10.1007/s12517-020-5208-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s12517-020-5208-0

Keywords

Search

Navigation