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Academic Journal of Engineering and Technology Science, 2020, 3(5); doi: 10.25236/AJETS.2020.030516.

Simulation Research on Grouting Spacing in Soft Rock Roadway

Author(s)

Qiang Su1, Jianyong Pang1, Hua Wang2,*

Corresponding Author:
Hua Wang
Affiliation(s)

1 School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
2 Mine Construction Branch, China Coal Research Institute, Beijing 100013, China
*Corresponding Author: E-mail.: 787577336@qq.com.

Abstract

According to Gubei Coal Mine 1552 (3) working face soft rock roadway support has different degrees of roof subsidence, floor heaves, and slabs, accompanied by a large number of anchor cable breakage failures, through Flac3D numerical simulation, grouting for the roof With the two models of full-face grouting, the anchor cable spacing is 3m, 4m, 5m, 6m, and three new support schemes under different environments are obtained. The results show that the plastic zone range of 3m and 4m is the smallest and has the best control effect on the deformation and failure of the roadway. The spacing of 4m is more economical in cost control.

Keywords

soft rock roadway, Flac3D, top grouting, full section grouting

Cite This Paper

Qiang Su, Jianyong Pang, Hua Wang. Simulation Research on Grouting Spacing in Soft Rock Roadway. Academic Journal of Engineering and Technology Science (2020) Vol. 3 Issue 5: 122-130. https://doi.org/10.25236/AJETS.2020.030516.

References

[1] M.C. He , J. Yang and Q. Qi (2007). Optimal design and application of coupling support for deep soft rock roadway [J].Journal of Liaoning Technical University,vol.1, no.1, p.40-42.
[2] W.K. Zhang ,D.L. Liu and D.Z. Sun (2020).The destruction mechanism and active control technology of surrounding rock in deep roadway in Chengjiao coal mine[J].Mining Safety and Environmental Protection,vol.47, no.3, p.76-81+86.
[3] L. Fan,W.J. Wang and C. Yuan (2020). Evaluation method for supporting effect of inclined soft rock roadway based on extenics[J].Journal of Mining and Safety Engineering,vol.37, no.3, p.498-504.
[4] P.F. Jiang, H.P. Kang and Z.G. Wang (2020). The principle, technology and application of the coordinated control of anchoring and filling of surrounding rock in soft rock roadway in thousand-meter deep well[J].Journal of China Coal Society,vol.45, no.3, p.1020-1035.
[5] Y. Yang, Y.D. Sun and G.Y. Zhang (2020). Research on microseismic response characteristics and support of roadway surrounding rock under dynamic load [J].China Safety Science and Technology,vol.16, no.6, p.73-79.
[6] Q.L. Li and B.B. Wang (2020). Discussion on soft rock roadway excavation support technology [J].Science and Technology Innovation Guide, vol.17, no.15, p.13+15.