Skip to main content
SpringerLink
Log in

Studies on rock failure of layered rock in underground mining-face and control techniques

  • Original Article
  • Published:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources Aims and scope Submit manuscript

Abstract

The failure of layered rock in underground mining face may be influenced by the slipping among the layers. The shear failure around the excavation circular roadway is the main failure type in layered rock. To Study the rock failure in layered rock, the condition of bedding slipping in rock is analyzed, and the stresses distribution around circular roadway is calculated. Based on the analysis results, the Flac 3D software is used to analyze the failure of layered rock in roadway floor. Discontinuous interfaces are created to study the effect of bedding planes. The failure of floor is described at two phases: roadway stability phase and mining-face recovery influencing phase. The results indicate that a shear failure surface occurs at the side of coal pillar during the first phase; a shear arched plane occurs at the side of mining-face during the second phase. The results of numerical model are in good agreement with monitoring data. Finally, bolts reinforcement design is proposed to eliminate the development of failure zone in layered rock.

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

Access this article

Log in via an institution

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

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

Similar content being viewed by others

Explore related subjects

Discover the latest articles, news and stories from top researchers in related subjects.

Abbreviations

\(\sigma_{r}\) :

Radial stress in rock mass (MPa)

\(\sigma_{\theta }\) :

Tangential stress in rock mass (MPa)

\(\sigma_{rp}\) :

Radial stress of shear fracture zone

p 0 :

Is the original rock stress (MPa)

\(\sigma_{\theta p}\) :

Tangential stress of shear fracture zone (MPa)

\(\beta_{0}\) :

Angle of bedding plane to the horizontal direction

\(\theta\) :

Radial direction of RVE inclined to an angle \(\theta\) to the horizontal direction

p 0 :

Original rock stress (MPa)

r a :

Radius of the roadway (m)

r :

Distance from the center of the roadway (m)

c j :

Cohesion of bedding surface (MPa)

\(\varphi_{j}\) :

Internal friction angle of bedding surface

r p :

Distance from the boundary of the shear failure zone to the center of the roadway

References

  • Anubhav, Wu H (2015) Modelling of non-linear shear displacement behaviour of soil–geotextile interface. Int J Geosynth Ground Eng 1:19

    Article  Google Scholar 

  • He P, Kulatilake PHSW, Liu D (2016) A procedure to detect, construct, quantify, numerically simulate and validate fracture networks in coal blocks. Geomech Geophys Geo-energ Geo-resour 2:257–274

    Article  Google Scholar 

  • Hudson JA, Harrison JP (2000) Stabilization principles. In: Hudson JA (ed) Engineering rock mechanics: an introduction to the principles. Elsevier, Oxford, pp 267–285

    Google Scholar 

  • Itasca F (2000) Fast Lagrangian analysis of continua. Itasca Consulting Group Inc., Minneapolis

    Google Scholar 

  • Jaeger JC, Cook NGW, Zimmerman R (2009) Stresses around cavities and excavation. Zimmerman R Fundamentals of rock mechanics, 4th edn. Blackwell, London, pp 205–250

    Google Scholar 

  • Jiang YD, Lu SL (1995) Mechanism and control of floor heave of roadway. China Coal 8:13–17

    Google Scholar 

  • Liu SW, Zhang WG, Feng YL (2013) Study on migration mechanism of slipping floor heave rock mass in deep roadway and its control counter measure. J Min Safety Eng 30:706–711

    Google Scholar 

  • Liu C, Song XM, Liu Y (2014) Mechanism and countermeasures of layered floor heave of large section mining roadway. Journey China Coal Soc 39:1049–1055

    Google Scholar 

  • Paluszny A, Zimmerman RW (2017) Modelling of primary fragmentation in block caving mines using a finite-element based fracture mechanics approach. Geomech Geophys Geo-energ Geo-resour 3:121–130

    Article  Google Scholar 

  • Wang WJ, Huang CG, Hou CJ (2002) Mechanical deformation analysis of floor strata of roadway driving along next goaf in fully mechanized sub-level caving face. Journey China Coal Soc 27:26–30

    Google Scholar 

  • Wasantha P, Ranjith PG, Zhang QB (2015) Do joint geometrical properties influence the fracturing behaviour of jointed rock? An investigation through joint orientation. Geomech Geophys Geo-energ Geo-resour 1:3–14

    Article  Google Scholar 

  • Xu T, Yang T, Chen C (2015) Mining induced strata movement and roof behavior in underground coal mine. Geomech Geophys Geo-energ Geo-resour 1:79–89

    Article  Google Scholar 

  • Yang Y, Ju Y, Sun Y (2015) Numerical study of the stress field during crack growth in porous rocks. Geomech Geophys Geo-energ Geo-resour 1:91–101

    Article  Google Scholar 

  • Yu Z, Kulatilake PHSW, Jiang F (2012) Effect of tunnel shape and support system on stability of a tunnel in a deep coal mine in China. Geotech Geol Eng 30:383–394

    Article  Google Scholar 

  • Zhang Y, Zhang JL, Zhang XB (2012) Research on supporting technology in coal-rock roadway based on the loose circle theory. China Coal 38:54–57

    Google Scholar 

  • Zheng XG, Liu N, Zhang N (2014) Floor heave mechanism and control technology of flexural and folded deep mine roadway. Journey China Coal Soc 39:417–423

    Google Scholar 

Download references

Acknowledgements

The authors would like to acknowledge the financial supports of the State Key Research Development Program of China (No. 2016YFC0600708) and the China Scholarship Council (No. 201606430026). Special thanks go to two anonymous reviewers for their constructive comments to improve this work.

Author information

Authors and Affiliations

  1. School of Resource and Safety Engineering, China University of Mining and Technology, Beijing, 100083, China

    Jian-jian Zhao & Yong Zhang

  2. Deep Earth Energy Laboratory, Department of Civil Engineering, Monash University, Melbourne, 3800, Australia

    Jian-jian Zhao

Authors
  1. Jian-jian Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yong Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Jian-jian Zhao.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhao, Jj., Zhang, Y. Studies on rock failure of layered rock in underground mining-face and control techniques. Geomech. Geophys. Geo-energ. Geo-resour. 3, 405–414 (2017). https://doi.org/10.1007/s40948-017-0068-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40948-017-0068-0

Keywords

Search

Navigation