项目群视角下大中型工程工期压缩模型研究

Compression Model for Construction Duration from the Perspective of Large and Medium Program

摘要:

针对当前的工期压缩模型未考虑多个承建单位之间的沟通协调,不利于赶工和压缩工期,引入子网络概念,构建了项目群子网络。通过分析项目群工期压缩机理,利用关键链法对单一资源约束下的项目群工期压缩进行了研究,重点探讨了资源约束对子网络工期的影响以及对项目群整体工期的影响,据此构建了基于子网络的项目群工期压缩模型。结合某房地产公司Ⅰ项目群,对资源约束下项目群工期压缩模型进行了算例分析,证明经过该模型压缩后的工期比计划的工期短,达到了压缩的目标。

Abstract:

Compression model for the current period is not considered the communication and coordination between a plurality of construction unit, so it’s not conducive to rush and compress duration, thus introduced the concept of sub-network and built the program sub-network. This paper analyzes program duration compression mechanism and uses the critical chain studied the program duration compression under the single resource constraint, especially focuses on the impact of resource constraint and the impact of the sub-network schedule for the whole duration of the project group, according to this, program duration compression model based on the sub-network is established. Finally, with the I project group of a real estate company, a case study is conducted based on the program duration compression model under resource constraint, which proves compressed duration through this model is shorter than the planned duration, that means the goal of duration compress is achieved .