在进行大跨径顶推连续梁设计时曾遇到临时墩水平拉索内力计算问题。在实际工作中为此要多次反复求解二元三次方程组。这是一个较为复杂的计算问题。本文对此进行了一些探讨,并采用程序式计算器解决这一问题效果良好,文中重点介绍二元三次方程组解法。这一解法较独特,它也为类似的非线性非齐次方程组的求解提供了新的途径 During the design of long-span pusher continuous girder, the internal force calculation of horizontal cable at temporary pier has been encountered. In practical work, we must repeatedly solve the system of binary cubic equations. This is a more complicated calculation problem. This article has carried on the discussion to some extent, and uses the procedure calculator to solve this question the effect to be good, in this article emphatically introduces the binary cubic equation system solution. This solution is rather unique and it provides a new way for the solution of similar nonlinear inhomogeneous equations