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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


Qiang Su1, Jianyong Pang1, Hua Wang2,*

Corresponding Author:
Hua Wang

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.


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.


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.


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