
第34卷第1期 2017年1月
土木工程与管理学报 Journal of Civil Engineering and Management
Vol. 34 No. 1 Jan.2017
基干多因素影响下缓冲区设置的进度风险预警
黄建文1,杨青青1,黄琴2,李朝全
(1.三峡大学水利与环境学院,湖北宜昌443002;2.天门市建设工程造价管理站,湖北天门431700)摘要:工程项目进度计划在执行过程中易受不确定性因素的影响而出现偏差。本文考虑施工过程中的施工难度、风险偏好度以及工序复杂程度这三个影响因素,对关键链技术中缓冲区的设置方法进行改进,在执行改进关键链进度计划的基础上,选取进度偏差率作为监控指标构建了建设工程进度风险动态预警控制模型。最后实例分析表明,在保证较高完工概率的前提下采用改进关键链技术能有效缩短工程项目计划总工期,利用进度风险动态预警控制模型对进度执行情况进行实时监控,可以为项目决策者高效准确地提供进度管理决策信
息。采用事前事后控制相结合的手段能有效控制不确定性影响因素对工程进度的影响。关键词:进度风险;关键链;缓冲区;多因素联合影响;风险动态预警
中图分类号:TU722
文献标识码:A文章编号:2095-0985(2017)01-0033-05
ScheduleRiskEarlyWarning Based on Buffer Setting with Multi-factorInfluence
HUANG Jian-wen',YANG Qing-qing",HUANG Qin’,LI Chao-quan
(1. College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002,China; 2.Tianmen Construction Project Cost Management Station,
Tianmen431700,China)
Abstract : In the process of construction progress, deviation can be made easily if engineering project schedule affected by the uncertain factors. Considering factors of the construction difficulty and the risk bias coefficient and work complexity in the process of construction, this paper put forward the modified idea of buffer setting method in the core of the critical chain method and the progress schedule of improved critical chain. On the basis of it, this paper built the fundamental model of schedule risk dynamic early warning control by taking the schedule variance rateas monitoring index. The example analysis showed that on the premise of high completion rate the improved critical chain method schedule control can effectively shorten project planned period, using the model for real-time schedule accomplishment monitoring can efficiently and accurately provide decision information of schedule management for policymaker. Combined with the prior control and afterwards control can effectively control the negative impact of uncertainty factors effected to progress.
Key words: schedule risk; the critical chain; buffer region; joint influence; dynamic risk early
warning
在建设工程项目施工过程中,使用传统的进度管理技术已难以满足大型建设项目对进度计划风险管控的要求。为提高施工企业的项目管理水平,对传统进度管理技术进行优化就显得极为重
收稿日期:2016-10-27修回日期:2016-12-09
要和迫切。大型建设项目如水利工程项目在建设过程中对各种不确定性因素的影响十分敏感,工期控制难度大,这就要求项目管理人员必须及时掌握工程进度动态,准确分析进度偏差的发展趋
作者简介:黄建文(1977-),男,湖北武汉人,副教授,博士,研究方向为工程项目管理(E-mail:jwhuang@ctgu.edu.cn)
90)(606)
万数014KSD01)