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基于关键链技术的火车站站房改造项目进度管理思考 (第2页) - 工程管理 - 无忧论文网
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工程管理论文栏目提供最新工程管理论文格式、工程管理硕士论文范文。详情咨询QQ:1847080343(论文辅导)

基于关键链技术的火车站站房改造项目进度管理思考

日期:2023年03月12日 编辑:ad201107111759308692 作者:无忧论文网 点击次数:291
论文价格:150元/篇 论文编号:lw202302240956026059 论文字数:46522 所属栏目:工程管理论文
论文地区:中国 论文语种:中文 论文用途:硕士毕业论文 Master Thesis
,在进度管理上提出了比新建项目更高的要求。

本文结合工程项目建设的特点和进度管理现状,将传统项目进度管理方法与关键链技术进行深入对比。结果表明,工程建设项目运用关键链技术可以有效地解决铁路车站工程进度管理中存在的问题。但是,针对火车站站房改造过程中“火车站在正常运营的前提下组织施工”等实际特点,需要对关键链技术中缓冲区的计算公式进行优化,才能更加适应于实际情况。随后,本课题以传统的根方差法作为缓冲区计算的原始公式,根据火车站满足正常运营前提下的站房改造项目的特点,通过4个步骤对传统公式进行优化。最后,将改进后的关键链技术进度管理模型应用于H火车站站房改造项目,进行实例验证。 研究结论总结如下:

(1)通过将横道图、关键路径法、计划评审技术等传统进度管理方法与关键链技术进行对比,发现在火车站站房改造类项目中,关键链技术不仅仅考虑工序间的逻辑关系,还注重各工序间资源约束情况,避免了项目执行过程中资源约束对工期的影响,在总工期的进度控制方面更有优势。

(2)通过对根方差公式中的“安全时间t”重新进行定义、引入工序不确定系数C,并根据项目实际特点而创建的“外界干扰系数”、“竣工延期容忍度”的概念,对火车站站房改造项目的缓冲区计算进行逐级优化,改进后的缓冲区计算结果更科学、合理,构建的基于关键链技术的进度管理模型更贴近于工程实践。

(3)基于不确定性系数动态分配各工序的缓冲量,设置缓冲监控触发点,建立实时动态监控模型,方便于管理人员对进度计划实时监控。

(4)将优化后的关键链进度管理模型运用于H火车站站房改造项目中,站站房改造项目完工日期明显提前。采用关键链技术后的计划工期比原计划工期缩短20天;通过蒙特卡罗法数值模拟,发现模拟工期比实际工期提前24天。两者均达到项目合同的工期要求,体现出改进后的关键链技术进度管理模型在火车站站房改造类项目的进度管理中具有明显优势。

参考文献(略)