工程管理学报
工程管理學報
공정관이학보
CONSTRUCTION MANAGEMENT MODERNIZATION
2014年
5期
47-51
,共5页
张坤%张宇%曹海东%张显成
張坤%張宇%曹海東%張顯成
장곤%장우%조해동%장현성
水利工程%成本风险%可拓评估模型%风险评估
水利工程%成本風險%可拓評估模型%風險評估
수리공정%성본풍험%가탁평고모형%풍험평고
water conservancy project%cost risk%extension assessment model%assessment
考虑到水利工程的建设管理特点,在当前清单计价模式下,如何能够准确及时地知晓工程成本的风险因素、风险等级、风险发生概率等是施工单位必须努力解决的重要问题。在充分理解物元理论与可拓工程思想的基础上,对水利工程承包方面临的主要风险进行了识别和分析,选定特征集,确定评语集、节域及经典域。利用熵权的思想,确定评价指标的权重,确定建立水利工程项目可拓风险评估模型及风险等级,并分析出最主要的风险因素。案例分析表明,南水北调工程某标段的成本风险等级为 j0=3,即风险较小,计算风险的等级变量特征值 j*=2.9。严格意义上来说,该工程的风险等级为2.9,其风险趋向接近风险等级较小的那一级,即第4级,且最重要的风险为价格风险。
攷慮到水利工程的建設管理特點,在噹前清單計價模式下,如何能夠準確及時地知曉工程成本的風險因素、風險等級、風險髮生概率等是施工單位必鬚努力解決的重要問題。在充分理解物元理論與可拓工程思想的基礎上,對水利工程承包方麵臨的主要風險進行瞭識彆和分析,選定特徵集,確定評語集、節域及經典域。利用熵權的思想,確定評價指標的權重,確定建立水利工程項目可拓風險評估模型及風險等級,併分析齣最主要的風險因素。案例分析錶明,南水北調工程某標段的成本風險等級為 j0=3,即風險較小,計算風險的等級變量特徵值 j*=2.9。嚴格意義上來說,該工程的風險等級為2.9,其風險趨嚮接近風險等級較小的那一級,即第4級,且最重要的風險為價格風險。
고필도수리공정적건설관리특점,재당전청단계개모식하,여하능구준학급시지지효공정성본적풍험인소、풍험등급、풍험발생개솔등시시공단위필수노력해결적중요문제。재충분리해물원이론여가탁공정사상적기출상,대수리공정승포방면림적주요풍험진행료식별화분석,선정특정집,학정평어집、절역급경전역。이용적권적사상,학정평개지표적권중,학정건립수리공정항목가탁풍험평고모형급풍험등급,병분석출최주요적풍험인소。안례분석표명,남수북조공정모표단적성본풍험등급위 j0=3,즉풍험교소,계산풍험적등급변량특정치 j*=2.9。엄격의의상래설,해공정적풍험등급위2.9,기풍험추향접근풍험등급교소적나일급,즉제4급,차최중요적풍험위개격풍험。
Considering characteristics of the water conservancy project management,how to know the risk factors on cost is an important problem that the construction enterprise must try to solve under the list valuation mode. Based on extension engineering and matter-element theory, cost risk factors which the contractor faced were analyzed including risk caused by owner,fluctuations in the trading environment,the construction company,the project itself, and other risk. Then feature set, evaluation set,classical domain, and joint domain were selected. Using the idea of entropy weight,the weights of evaluation indexes were determined. An extension assessment model for construction project cost risk was set up. Case analysis shows that by using this assessment mode, the level of cost risk was j0=3 which meant that the cost risk is lower,and characteristic value of risk rank was j*=2.9. Strictly speaking,the risk rank of this project is 3 and the most important risk factor is price risk. Practice has proved that this mode has a significant effect on risk control.