运筹与管理
運籌與管理
운주여관리
Operations Research and Management Science
2015年
5期
270-280
,共11页
刘书庆%罗丹%刘佳%陈丹丹
劉書慶%囉丹%劉佳%陳丹丹
류서경%라단%류가%진단단
进度计划%缓冲区设置%关键链%EPC项目
進度計劃%緩遲區設置%關鍵鏈%EPC項目
진도계화%완충구설치%관건련%EPC항목
project planning%buffer setting%critical chain%EPC project
为有效解决EPC项目关键链缓冲区时间估计不够准确而影响项目进度计划编制与控制的问题,在分析现有关键链缓冲区设置方面研究成果及其存在不足基础上,首先采用探索性因子分析法,通过文献归纳、问卷设计与数据采集、数据处理与分析,进行了EPC项目缓冲区设置影响因素发掘与提取,提取出了21项EPC项目缓冲区设置关键影响因素;其次建立了基于影响因素权重及其对不同工序影响程度的工序综合权重计算模型,同时引入工序位置权重及工序作业时间风险弹性系数,构建了项目缓冲区及输入缓冲区定量确定模型;最后以某EPC项目为例进行了应用研究,论证了关键链缓冲区设置模型的准确性与可操作性,为EPC项目缓冲区设置提供了借鉴。
為有效解決EPC項目關鍵鏈緩遲區時間估計不夠準確而影響項目進度計劃編製與控製的問題,在分析現有關鍵鏈緩遲區設置方麵研究成果及其存在不足基礎上,首先採用探索性因子分析法,通過文獻歸納、問捲設計與數據採集、數據處理與分析,進行瞭EPC項目緩遲區設置影響因素髮掘與提取,提取齣瞭21項EPC項目緩遲區設置關鍵影響因素;其次建立瞭基于影響因素權重及其對不同工序影響程度的工序綜閤權重計算模型,同時引入工序位置權重及工序作業時間風險彈性繫數,構建瞭項目緩遲區及輸入緩遲區定量確定模型;最後以某EPC項目為例進行瞭應用研究,論證瞭關鍵鏈緩遲區設置模型的準確性與可操作性,為EPC項目緩遲區設置提供瞭藉鑒。
위유효해결EPC항목관건련완충구시간고계불구준학이영향항목진도계화편제여공제적문제,재분석현유관건련완충구설치방면연구성과급기존재불족기출상,수선채용탐색성인자분석법,통과문헌귀납、문권설계여수거채집、수거처리여분석,진행료EPC항목완충구설치영향인소발굴여제취,제취출료21항EPC항목완충구설치관건영향인소;기차건립료기우영향인소권중급기대불동공서영향정도적공서종합권중계산모형,동시인입공서위치권중급공서작업시간풍험탄성계수,구건료항목완충구급수입완충구정량학정모형;최후이모EPC항목위례진행료응용연구,론증료관건련완충구설치모형적준학성여가조작성,위EPC항목완충구설치제공료차감。
The inaccurate estimation of buffer time always has influence on the project planning and control of EPC project, in order to solve the problem effectively, on the basis of analyzing the current research achievement and existing problems of critical chain buffer setting, firstly, viewing the literature, designing questionnaires and collecting data, processing and analyzing data, the influence factors of EPC project buffer setting have been extracted through the exploratory factor analysis method, and 21 key influence factors of buffer setting are deter-mined;Secondly, the process synthesis weights calculation model is constructed based on the weight of different factors and different factors have different effects on the process, meanwhile, introducing the process position weight and the risk elastic coefficient of processes operating time, a quantitative determination model of the project buffer and the input buffer is established; Finally, an example of EPC project is applied, argued the accuracy and operability of the key chain buffer setting model, referenced for the EPC project buffer setting.