【摘要】 使用边界单元法计算无限大弹性介质中孔洞周边应力集中系数,可获得较高的计算精度。采用边界元虚应力法对矩形和直墙拱顶形巷道进行了计算,得到巷道周边关键点上的应力集中系数。将计算结果与近年来国内出版的多种岩石力学专著中相关数据进行了比较,发现这些文献中所引用的部分数据仍存在较大误差,建议相关文献再版时加以更正。更多还原

【Abstract】 High calculation accuracy can be obtained in calculating the concentration factor of the stress around infinite elastic medium cavities by using boundary element method.Calculation of rectangular roadways and upright arch-roof roadways is made by fictitious stress boundary element method to obtain the stress concentration factors of the key points around the roadways.The calculation results are compared with the relevant data in several rock mechanics monographs domestically published in recent years.Great errors are found in some of the data cited in these literatures,which the authors propose should be corrected in their republication.更多还原