Author:
Jia Ce,Li Sheng,Fan Chaojun,Rong Hai,Yang Lei,Pu Ziang
Abstract
AbstractDeformation and failure of the roadway surrounding rock under dynamic disturbance were explored, which is essential for the control of the surrounding rock. The impact of dynamic disturbance on the deformation and failure of the roadway surrounding rock was studied from a single factor perspective using numerical simulation software. The disturbance intensity, frequency, and time were determined to affect the deformation and plastic zone of the surrounding rock. Firstly, a multi-factor integrated study was achieved using an orthogonal experimental design, and the impact of the three factors on the deformation and plastic zone of the surrounding rock were studied by applying mean value and extreme difference. The results show that the degree of influence of deformation of the roof is time > intensity > frequency in order. The impact of the plastic zone volume is intensity > frequency > time in order. Finally, a multivariate regression model was established using multiple regression analysis. TheP = 0 < 0.05 for the regression model is obtained by variance analysis, and the equation regression is significant, which can effectively predict the deformation and failure of the surrounding rock under dynamic disturbance.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Liaoning Province
Postdoctoral Science Foundation of China
Publisher
Springer Science and Business Media LLC
Reference54 articles.
1. Dai, L. et al. Quantitative mechanism of roadway rockbursts in deep extra-thick coal seams: Theory and case histories. Tunn. Undergr. Space Technol. 111, 103861 (2021).
2. Fan, C. et al. Coal and gas outburst dynamic system. Int. J. Min. Sci. Technol. 27(1), 49–55 (2017).
3. Song, D. et al. A dynamic ejection coal burst model for coalmine roadway collapse. Int. J. Min. Sci. Technol. 29(4), 557–564 (2019).
4. Yishan, P. & Lianpeng, D. Theoretical formula for coal mine rock burst generation. Chin. J. Coal 46(3), 789–799 (2021).
5. Junwen, Z., Zhixiang, S., Jinliang, L., et al. Technical framework for structural regulation and control of rock burst disasters in deep coal mining. Coal Sci. Technol. 1–12 (2022).
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献