摘要
针对目前对于矩形巷道围岩稳定性分析方法的匮乏与不足,采用已有的弹塑性理论以及与实际情况相符的本构模型,利用复变函数将矩形巷道平面问题转换成单位圆平面问题,更好的解决了对矩形巷道围岩应力分布规律的分析与求解,选用Poyting-Thomson(鲍尔丁-汤姆逊)模型以及广义达尔文模型对矩形巷道粘弹性变形进行了对比分析及求解。并结合工程实际情况,对矩形巷道平面问题转换成单位圆平面问题进行了进一步分析及求解。本文为研究矩形巷道围岩稳定性破坏机理及预防提供了一定程度的理论参考。
In view of the current lack of analysis methods for the stability of surrounding rock in rectangular roadway,the existing elastoplastic theory and the constitutive model consistent with the actual situation are used to transform the rectangular roadway plane problem into a unit circle plane problem by using the complex variable function.The analysis and solution of the stress distribution of the surrounding rock in the rectangular roadway are solved.The poyting-thomson model and the generalized Darwin model are used to compare and solve the viscoelastic deformation of the rectangular roadway.This paper provides a theoretical reference for studying the failure mechanism and prevention of surrounding rock stability in rectangular roadway.
作者
韩涛
Han Tao(Changzhi Jingfang Coal Industry Corporation Ltd.,Shanxi Changzhi 047100)
出处
《同煤科技》
2020年第1期42-44,共3页
Datong Coal Science & Technology
关键词
矩形巷道
围岩应力分布规律
粘弹性变形
Rectangular roadway
Distribution law of surrounding rock stress
Viscoelastic deformation
