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Numerical Approach for Goaf-Side Entry Layout and Yield Pillar Design in Fractured Ground Conditions

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Abstract

Entry driven along goaf-side (EDG), which is the development of an entry of the next longwall panel along the goaf-side and the isolation of the entry from the goaf with a small-width yield pillar, has been widely employed in China over the past several decades . The width of such a yield pillar has a crucial effect on EDG layout in terms of the ground control, isolation effect and resource recovery rate. Based on a case study, this paper presents an approach for evaluating, designing and optimizing EDG and yield pillar by considering the results from numerical simulations and field practice. To rigorously analyze the ground stability, the numerical study begins with the simulation of goaf-side stress and ground conditions. Four global models with identical conditions, except for the width of the yield pillar, are built, and the effect of pillar width on ground stability is investigated by comparing aspects of stress distribution, failure propagation, and displacement evolution during the entire service life of the entry. Based on simulation results, the isolation effect of the pillar acquired from field practice is also considered. The suggested optimal yield pillar design is validated using a field test in the same mine. Thus, the presented numerical approach provides references and can be utilized for the evaluation, design and optimization of EDG and yield pillars under similar geological and geotechnical circumstances.

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References

  • Agapito JFT, Maleki HN, Moon M (1988) Two-entry longwall gateroad experience in a burst-prone mine. In: Proceeding of AMC international MINEXPO, vol II. American mining congress, Chicago, IL, pp 271–292

  • Bai JB (2006) Surrounding rock control of gob-side entry driving. China University of Mining and Technology Press, Xuzhou

    Google Scholar 

  • Bai M, Kendorski FS, Van Roosendaal DJ (1995) Chinese and North American high-extraction underground coal mining strata behavior and water protection experience and guidelines. In: Proceedings of the 14th international conference on ground control in mining. West Virginia Univ., Morgantown, WV (United States), Proceedings of the 14th International Conference on Ground Control in Mining

  • Bai JB, Hou CJ, Huang HF (2004) Numerical simulation study of stability of narrow coal pillar of roadway driven along the goaf. Chin J Rock Mech Eng 20:3475–3479

    Google Scholar 

  • Carr F, Martin E, Gardner BH (1984) How to eliminate roof and floor failures with yield pillar. Coal Min Part 1:62–70

    Google Scholar 

  • Carr F, Martin E, Gardner BH (1985) How to eliminate roof and floor failures with yield pillar. Coal Min Part 2:44–49

    Google Scholar 

  • Chen G (1989) Investigation into yield pillar behavior and design consideration. VPI and State University, PhD dissertation, pp 156

  • Chen JS, Peng SS (1999) Design of longwall face support by use of neural network models. Transactions Institute of Mining and Metallurgy Section A Mining Industry 108:A143–A152

    Google Scholar 

  • Chen S, Wang H, Wang H, Guo W, Li X (2016) Strip coal pillar design based on estimated surface subsidence in Eastern China. Rock Mech Rock Eng 49:1–10

    Article  Google Scholar 

  • Hoek E, Carranza-Torres C, Corkum B (2002) Hoek-Brown failure criterion-2002 edition. Proceedings of NARMS-Tac 1:267–273

    Google Scholar 

  • Hou CJ (2013) Ground control of roadways. China University of Mining & Technology Press, Xuzhou, China

    Google Scholar 

  • Hou CJ, Ma NJ (1989) Stress in in-seam roadway sides and limit equilibrium zone. J China Coal Soc 14(4):21–29

    Google Scholar 

  • Jiang LS, Liu HT, Lian XY, Zhang WW (2012) Research on rational width of coal-pillar in shallow-buried medium-thick coal-seam. Coal Min Technol 7(4):105–108

    Google Scholar 

  • Jiang L, Sainoki A, Mitri HS, Ma N, Liu H, Hao Z (2016) Influence of fracture-induced weakening on coal mine gateroad stability. Int J Rock Mech Min 88:307–317

    Google Scholar 

  • Li W, Bai J, Peng S, Wang X, Xu Y (2015) Numerical modeling for yield pillar design: a case study. Rock Mech Rock Eng 48:305–318

    Article  Google Scholar 

  • Morsy K (2003) Design consideration for longwall yield pillar stability. Dissertation, West Virginia University, pp 187

  • Peng SS (2008) Coal mine ground control, 3rd edn. Peng SS Publisher, Morgantown, WV, pp 229–237, 260-267, 422–423

  • Peperakis J (1958) Mountain bumps at the sunnyside mines. Min Eng 211:982–986

    Google Scholar 

  • Salamon M (1990) Mechanism of caving in longwall coal mining. In: Rock mechanics contribution and challenges: proceedings of the 31st US symposium of rock mechanics, Golden, Colorado, Rock mechanics contribution and challenges: proceedings of the 31st US symposium of rock mechanics. Golden, Colorado, pp 161–168

  • Serata S (1982) Stress control method: quantitative approach to stabilizing mine openings in weak ground. In: Proceedings of the 1st international conference on stability in underground mining. Vancouver, BC, pp 52–93

  • Shen B (2014) Coal mine roadway stability in soft rock: a case study. Rock Mech Rock Eng 47:2225–2238

    Article  Google Scholar 

  • Tan YL, Yu FH, Ning JG, Zhao TB (2015) Design and construction of entry retaining wall along a gob side under hard roof stratum. Int J Rock Mech Min 77:115–121

    Google Scholar 

  • Tsang P, Peng SS (1993) A new method for longwall pillar design. In: Proceedings of the 12th international conference on ground control in mining. Morgantown, WV, pp 261–273

  • Tu SH, Bai QS, Tu HS (2011) Pillar size determination and panel layout optimization for fully mechanized faces in shallow seams. J Min Saf Eng 28(4):505–510

    Google Scholar 

  • Wang M, Bai JB, Li WF, Wang XY, Cao SG (2015) Failure mechanism and control of deep gob-side entry. Arab J Geosci 8(11):9117–9131

    Article  Google Scholar 

  • Wilson AH, Carr F (1982) A new approach to the design of multi-entry developments of retreat longwall mining. In: Proceedings of the 2nd international conference on ground control in mining. Morgantown, WV, pp 1–21

  • Yan S, Bai J, Wang X, Huo L (2013) An innovative approach for gateroad layout in highly gassy longwall top coal caving. Int J Rock Mech Min 59:33–41

    Google Scholar 

  • Yavuz H (2004) An estimation method for cover pressure re-establishment distance and pressure distribution in the goaf of longwall coal mines. Int J Rock Mech Min 41:193–205

    Article  Google Scholar 

  • Zhang Z, Bai J, Chen Y, Yan S (2015) An innovative approach for gob-side entry retaining in highly gassy fully-mechanized longwall top-coal caving. Int J Rock Mech Min 80:1–11

    Google Scholar 

  • Zhang GC, He FL, Jia HG, Lai YH (2017) Analysis of gateroad stability in relation to yield pillar size: a case study. Rock Mech Rock Eng 5:1–16

    Google Scholar 

  • Zhao TB, Guo WY, Tan YL, Lu CP, Wang CW (2017) Case histories of rock bursts under complicated geological conditions. Bull Eng Geol Environ. doi:10.1007/s10064-017-1014-7

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Acknowledgements

The research of this study was sponsored by the National Natural Science Foundation of China (Grant No. 51374139, 51574155, application number: 5170040152), State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology (SKLGDUEK1725), State Key Laboratory for Mining Disaster Prevention and Control (MDPC201602) and research funding (J17KA212, application number: ZR201702120004) from Government of Shandong Province. The valuable case study is supported by the Zhaogu No.2 coal mine, which is owned by the Henan Energy & Chemical Industry Group Co., Ltd. The authors are grateful for their support.

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Authors and Affiliations

  1. State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, 266590, China

    Lishuai Jiang, Peipeng Zhang, Lianjun Chen & Qingbiao Wang

  2. Department of Mining and Materials Engineering, McGill University, Montreal, H3A 2A7, Canada

    Lishuai Jiang & Hani S. Mitri

  3. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing, 100083, China

    Lishuai Jiang

  4. Faculty of Resources and Safety Engineering, China University of Mining and Technology, Beijing, 100083, China

    Zhen Hao

  5. Zhaogu No.2 Coal Mine, Henan Energy and Chemical Industry Group Co., Ltd., Xinxiang, 453633, China

    Zhen Hao

  6. International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto, 860-8555, Japan

    Atsushi Sainoki

  7. School of Civil Engineering, Henan Polytechnic University, Jiaozuo, 454000, China

    Hani S. Mitri

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  1. Lishuai Jiang
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  2. Peipeng Zhang
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  3. Lianjun Chen
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  4. Zhen Hao
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  5. Atsushi Sainoki
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  6. Hani S. Mitri
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  7. Qingbiao Wang
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Correspondence to Lishuai Jiang or Lianjun Chen.

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Jiang, L., Zhang, P., Chen, L. et al. Numerical Approach for Goaf-Side Entry Layout and Yield Pillar Design in Fractured Ground Conditions. Rock Mech Rock Eng 50, 3049–3071 (2017). https://doi.org/10.1007/s00603-017-1277-0

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  • DOI: https://doi.org/10.1007/s00603-017-1277-0

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