Plastic Damage Characteristics of Roadways under the Influence of Overlying Working Face Mining

Weiyu Zhang

doi:10.54097/yw81rx78

Authors

Weiyu Zhang

DOI:

https://doi.org/10.54097/yw81rx78

Keywords:

Numerical Simulation, Ground Stress, Stress Distribution, Plastic Damage

Abstract

In order to investigate the influence of mining back from the upper working face on the lower roadway, this paper takes the south roadway of the -655m level of Hebi 8 Mine as the research object, and studies the plastic damage characteristics of the roadway surrounding rock under the influence of mining disturbance of the 3107-working face in the south roadway of the -655m level. Through numerical simulation, this paper explores the stress distribution and plastic damage characteristics of the roadway peripheral rock in the -655m horizontal south roadway of Hebi eight mine, and clarifies the deformation and damage range of the roadway peripheral rock.

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References

H.P. Xie, J.H. Wang, B.H. Shen, et al: New idea of coal mining:scientific mining and sustainable mining capacity, Journal of China Coal Society, Vol. 37 (2012), No. 7, p. 1069-1079.

J.W. Teng, Y.H. Qiao, P.H. Song: Analysis of exploration, potential reserves and high efficient utilization of coal in China, Chinese Journal of Geophysics, Vol. 59 (2016), No. 12, p: 4633-4653.

H.Z. Wang, D.S. Zhang, X.F. Wang, et al: Study on bolt-mesh-anchor support technology of open-off cut with compound roof and large cross section, Coal Science and Technology, Vol. 46 (2018), No. 04, p: 105-109.

P. Zhang, N.J. Ma, W. Jiang, et al: Combined Support Technology of Large Section Roadway in High-stress Fractured Surrounding Rock, Procedia Engineering, Vol. 26 (2011), p: 1270-1278.

W.L. Zhai, Q.J. Wang, T. Li, et al: Application of High Strength and High Pretension Anchor Network Support Technology in Deep Mine Roadway Along Gob, Safety in Coal Mines, Vol. 49 (2018), No. 12, p: 79-82.

Z.J. Hou, L.S. Guo, P.F. Gou: Coal Roadway Bolt Support (China University of Mining and Technology press, China, 1999)

J. Yang, S.B. Yu, Z.G. Tao, et al: On the deformation and failure characteristics of the Tertiary soft rock roadway and coupling control measures, Journal of Mining & Safety Engineering, Vol. 31 (2014), No. 03, p: 373-378+384.

G.F. Zhang, S.B. Yu, G.F. Li, et al: Research On Complementary Supporting System Of Constant Resistance With Load Release For Three-Soft Mining Roadways In Extremely Thick Coal Seam, Chinese Journal of Rock Mechanics and Engineering, Vol. 30 (2011), No. 08, p: 1619-1626.

Y.D. Jiang, W.G. Liu, Y.X. Zhao, et al: Study On Surrounding Rock Stability Of Deep Mining In Kailuan Mining Group, Chinese Journal of Rock Mechanics and Engineering, Vol. 11 (2011), p: 1857-1862.

H.P. Kang, J.H. Wang, J. Lin: Case Studies Of Rock Bolting In Coal Mine Roadways, Chinese Journal of Rock Mechanics and Engineering, Vol. 29 (2010), No. 04, p: 649-664.