煤矿安全2025，Vol.56Issue(3)：157-166,10.DOI:10.13347/j.cnki.mkaq.20231382
动力扰动条件下巷道围岩变形规律研究
Study on deformation law of roadway surrounding rock under dynamic disturbance
摘要
Abstract
The surrounding rock is in a state of high stress during deep mining of coal mine,and the dynamic disturbance may lead to the instability of the surrounding rock and even rock burst.Therefore,it is of great significance to study the influencing factors of the deformation of roadway surrounding rock under dynamic disturbance.Based on elastic mechanics and stress wave theory,the in-stability mechanism of roadway surrounding rock is analyzed.By using the orthogonal experimental method and the dynamics mod-ule of FLAC3D software,the influencing factors of roadway surrounding rock deformation under dynamic disturbance were investig-ated.Firstly,according to the method of range and mean value analysis,the influence degree of each factor on the deformation of roadway surrounding rock is obtained,from the largest to the smallest,it is buried depth,distance,disturbance intensity and disturb-ance frequency.The combination of buried depth of 800 m,disturbance intensity of 20 MPa,distance of 9 m and frequency of 5 Hz has the greatest influence on the deformation of the roof and two sides of the roadway.The combination of buried depth of 500 m,disturbance intensity of 5 MPa,distance of 18 m and frequency of 20 Hz has the least influence on the deformation of the roof and two sides of the roadway.Secondly,the displacement,stress,plastic zone and energy evolution of surrounding rock are analyzed by numerical simulation method,and the correctness of the maximum and minimum combination is verified.Finally,the multiple linear regression mathematical model is used to predict the deformation of surrounding rock roof and two sides under the action of mul-tiple factors,and the regression effect is remarkable.关键词
动力扰动/正交试验/深部巷道/围岩变形/围岩控制Key words
dynamic disturbance/orthogonal experiment/deep roadway/surrounding rock deformation/surrounding rock deformation分类
矿山工程引用本文复制引用
罗明坤,宋丽强,李思齐,宋东东,兰安畅,贾策,李胜,杨振华,王长友..动力扰动条件下巷道围岩变形规律研究[J].煤矿安全,2025,56(3):157-166,10.基金项目
国家自然科学基金资助项目(52074146) （52074146）
辽宁省教育厅基本科研资助项目(LJKQZ20222319) （LJKQZ20222319）
辽宁省博士青年育苗资助项目(LJ212410147009) （LJ212410147009）
