Research on Numerical Simulation of Roadway Deformation under the Influence of Mining

Abstract:

The buried depth of gateroad in a mine mining, belongs to typical deep-seated roadway in soft strata. Due to the influence of mining, the deformation of roadway was serious. To ensure the stability of roadway surrounding rock during mining, roadway deformation damage law under the influence of mining was studied by FLAC3D numerical simulation. The results show that under the influenced of deep three “high” and one “disturbance”, the surface surrounding rock of roadway destroyed quickly, made a wide range of plastic failure zone. After the roadway excavation, the trend of deformation and deformation rate increased evidently under the influence of mining. And the closer distance of working face, the faster change trend. In 40m from working face, the deformation rate decreases relatively affected by periodic weighting. From working face 10m, the deformation rate is largest.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 1324-1327
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.1324
• Online since: July 2014
• Authors: Hua Jun Xue*, Jun Long Xue, Xiao Xu, Jie Kong, Ming Liang
• Keywords: Deep-Seated Roadway in Soft Strata, Deformation Damage Law, Dynamical Mining Pressure, FLAC3D, Stability of Roadway

References

[1] Wenbin Peng. FLAC3D Practical Tutorial [M]. Beijing: China Machine Press, (2008).

[2] Huajun Xue, Jiancheng Song, Zhongzhou Li etc. Numerical Analysis of Stress Field of Surrounding Rock in Deep Well Rock Drivage [J]. China Mining Magazine, 2013, Vol. 22, No. 5: 83-87.

[3] Yumin Chen, Dingping Xu, Jifeng Wang. FLAC/FLAC3D Foundation with Engineering Examples [M]. Beijing: China Waterpower Press, (2009).