本文着重探讨单线铁路隧道对称衬砌结构在多种形式的对称荷载(或微量偏压荷载)作用下,运用矩阵力法原理和数字电子计算机进行分析的方法。文中介绍了所相应采用的正,反对称基本结构图式和衬砌内力矩阵运算式。拟定了多种可能的荷载形式和七种荷载组合。较详尽地介绍了相应的程序设计内容。最后,根据运算成果对有关的各种因素对衬砌内力的影响进行分析探讨。 This article focuses on the method of using matrix force principle and digital electronic computer to analyze the symmetrical lining structure of single-line railway tunnel under the influence of various forms of symmetrical load (or micro-biased load). In this paper, the corresponding basic structural formulas of positive and anti-symmetry and the formula of lining internal force matrix are introduced. A variety of possible load forms and seven load combinations have been developed. Described in more detail the corresponding program design. Finally, the influence of various factors on lining internal force is analyzed based on the operation results.