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作 者:丰景春 董灵莉[1] FENG Jing-chun;DONG Ling-li(Institute of Project Management,Business School,Hohai University,Nanjing 211100,China;International River Research Centre,Hohai University,Nanjing 211100,China;Jiangsu Provincial Collaborative Innovation Center of World Water Valley and Water Ecological Civilization,Nanjing211100,China)
机构地区:[1]河海大学商学院项目管理研究所,江苏南京211100 [2]河海大学国际河流研究中心,江苏南京211100 [3]江苏省“世界水谷”与水生态文明协同创新中心,江苏南京211100
出 处:《中国管理科学》2022年第4期132-143,共12页Chinese Journal of Management Science
基 金:国家社会科学基金资助项目(17BGL156);江苏省研究生科研与实践创新计划项目(中央高校基本科研业务费(学生项目))(KYCX17_0511);广东省水利科技计划创新项目(2017-04)。
摘 要:现有工期压缩模型未考虑资源约束下多合同项目工期压缩所产生的局部效应与整体效应,针对这一局限性,通过引入子网络,分析了基于关键链法的项目群工期—费用优化机理,据此,对项目群初始网络计划进行工期优化。借助关键链,除去计划工期的冗余时间,动态调整存在资源冲突的合同项目开始时间。在此基础上,分析工期动态优化对关键链和非关键链合同项目压缩费用产生的不同影响以及对子网络自身和项目群的影响。基于此,研究并构建了多资源受限下单一子网络和项目群工期-费用优化模型。最后,结合算例,分析了优化模型的可行性和优势。研究结果表明:模型能够有效地解决资源约束下项目群计划调整和工期-费用优化问题,从而能够为业主科学安排项目群中各合同项目的起始时间和资源计划提供依据。In practice,large-scale projects are in the environment of multi-stakeholder,multi-resource demand,multi-stage,and multi-contract projects.Since the theory and method of single project management do not consider the impact of contracted project construction period compression on construction period and cost of subsequent contracted projects,the partial network generated by the logical relationship of the project,and program under limited resources,they cannot satisfy the demand of construction period-cost optimization of large-scale projects.It can be seen that considering the impact of the logical relationship between the contracted projects in the program on the compression cost is more in line with the engineering reality and of more practical significance.Therefore,it is particularly important to study the construction period-cost optimization of program under multi-resource constraints.The sub-network is introduced to analyze the construction period-cost optimization mechanism of program based on the critical chain method.First,the construction period of the initial network plan is optimized,minimizing,the redundant time of planned construction period through critical chain method and dynamically adjusting the starting time of resource conflict project.Based on this,the impact of the compression cost on critical chain,non-critical chain project,sub-network and program are analyzed.Then,construction period-cost optimization models of a single sub-network and program are constructed under multi-resource constraints.Finally,the compression cases are analyzed and elaborated in combination with examples.The results show that this model can effectively reduce the compression cost while optimizing construction period,which can provide reference for further research of program management.The data is representative in the study related to the program,and the case conclusions obtained from it are also universal.The results in this paper provide a basis for further research on the trade-off problem of construction peri
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