【摘要】 次关键路线在项目进度控制和工期压缩问题中具有重要意义。本文在给出CPM网络计划的一些新概念的基础上,提出了前主链定理、后主链定理和总时差定理,并且找到了一种运用总时差快速求解网络次关键路线的方法。文章对该方法进行了正确性证明,并给出了应用实例。更多还原

【Abstract】 The second critical path plays a very important role in the project scheduling and optimal compression of the project in time-cost trade-off problems.Based on some new concepts,the preceding main chain theorem,the succeeding main chain theorem and the total float theorem are offered,and then a method is given to find the second critical path in a CPM network quickly by total floats.Finally this method is proved to be correct,and a sample shows that it is very simple and convenient.更多还原