Numerical simulation of deformation mechanical characteristics of bolt support in high stress mine roadway

Article type: Research Article

Authors: Du, Peng

Affiliations: Tianjin North China Engineering Inverstigation & Design Co., Ltd., Tianjin 300181, China | E-mail: dupeng_1982@126.com

Correspondence: [*] Corresponding author: Tianjin North China Engineering Inverstigation & Design Co., Ltd., Tianjin 300181, China. E-mail: dupeng_1982@126.com.

Abstract: The traditional numerical analysis method of deformation mechanics of bolt support has the problems of poor numerical simulation effect and accuracy. In this paper, the numerical simulation of deformation mechanics of bolt support in high stress mine roadway is studied. This paper analyzes the principle of bolt in high stress mine roadway, constructs the deformation concentration parameter model of bolt support in high stress mine roadway, and calculates the bearing capacity of bolt; The elastic deformation equation of bolt support in high stress mine roadway is obtained, the energy balance control of bolt support in high stress mine roadway is realized, and the numerical simulation of deformation mechanical characteristics of bolt support in roadway is realized. The experimental results show that when the impact time is 18 ms, the deformation force of the proposed method and the actual bolt support is 286 kn, which indicates that the proposed method can obtain the deformation force results of the bolt support, and the proposed method can accurately simulate the deformation mechanical characteristics of the bolt support.

Keywords: Support deformation, mechanical properties, deformation lumped parameter model, elastic deformation equation

DOI: 10.3233/JCM226042

Journal: Journal of Computational Methods in Sciences and Engineering, vol. 22, no. 4, pp. 1251-1261, 2022