关键路径法在AP1000泵房通水进度管理中的运用
2019-09-02陈志勇
陈志勇
【摘 要】泵房通水标志着核电站热阱可用,是AP1000核电机组建设过程中的重要里程碑节点。由于三门核电一号机组无AP1000参考电站经验,建设过程中遇到很多困难和挑战,导致泵房通水进度出现严重滞后。通过关键路径法在一号机组泵房通水进度管理中的运用,总结一号机组建设经验,优化泵房通水各条路径施工进度,分析并提出了AP1000核电机组56个月标准建设工期下泵房通水时间和相关子项进度安排的解决方案,对后续AP1000机组的建设具有参考价值。
【关键字】AP1000;泵房通水;关键路径法;进度管理
中图分类号: TN702文献标识码: A 文章编号: 2095-2457(2019)10-0238-002
DOI:10.19694/j.cnki.issn2095-2457.2019.10.105
The Application of Critical Path Method in the Schedule Management of AP1000 Pump House Water-filling
CHEN Zhi-yong
(Sanmen Nuclear Power Co.,Ltd ,Project Control Department, Taizhou Zhejiang 317112, China)
【Abstract】Circulating Water Pump House Water-filling represents the availability of the heat sink, which is an important milestone in AP1000 nuclear power station project construction. Since Sanmen unit 1 project has no referential AP1000 experience, many difficulties and challenges were encountered during the construction process , leading to serious schedule deviation in Pump House Water-filling project. Based on the application of the critical path method in the schedule management of unit 1 Pump House Water-filling, this paper sums up the construction experience of the Sanmen unit 1, optimizes each path of the water-filling project schedule, puts forward a scheduling solution for Pump House Water-filling and related nodes under the AP1000 56-month standard construction duration, which can provide some reference value for the follow-up AP1000 nuclear power units construction.
【Key words】AP1000; Pump House Water-Filling; Critical Path Method; Schedule Management
0 前言
泵房通水是核電厂建设的重要节点,即循环水泵启动,核电厂的海水冷却系统可用。海水作为核电厂的最终热阱,是核电厂调试和生产运行的重要条件。调试期间一、二回路冲洗和各厂房送冷风压缩机的投用会产生大量热量,需要海水提供最终冷却,所以泵房通水是一回路冲洗、二回路冲洗和各厂房送冷风的前提条件。
三门核电一号机组2014年7月启动循环水泵(FCD+64)实现泵房通水,为一号机组后续调试创造了良好条件。但由于一号机组缺乏AP1000参考电站经验,一版进度计划安排本身存在多处不合理,进度计划执行过程中设计设备问题导致施工进度出现滞后,致使泵房通水进度多次威胁到项目关键路径。
1 关键路径法简介
关键路径法是进度管理中普遍运用的方法。首先梳理与项目相关的工作,确定项目的关键工作和关键路径。……
