南水北调工程设计优化收益分配模型分析

Analysis of Income Allocation Model for the Design Optimization of the South-to-north Water Diversion

在初步设计阶段,南水北调工程虽进行了反复优化,但由于其复杂性,在招标设计过程还存在较大优化空间。在分析招标设计过程设计方和发包方支付与所面临风险的基础上,以双方在设计优化中承担风险责任为基准,构建优化收益分配模型,讨论相关参数的估算方法。研究结果表明,设计方所得收益占总收益的34.33%,发包方所得收益占总收益的65.67%;设计方收益为支付的6.90倍,发包方为净收益。显然,这一机制将能充分调动双方优化工程的积极性。

In China,the South- to- North Water Transfer Project is an unprecedented giant water diversion project,which is inter- basin and across multiple provinces. Although,repeated optimization has been done during project feasibility study and preliminary design stage,detailed design,especially biding design,still has room for optimization according to the engineering complexity and large uncertainty. It is worth studying how to stimulate the designers＇ enthusiasm to optimize the project during biding design. This paper analyzed the cost of payment and risk which both the designers and client are faced with during biding design. Then,based on the risk responsibility shared by both parties,income allocation model for project optimization has been constructed. Also,the estimation method of related parameters has been discussed. Case analysis shows that,if the income allocation model for project optimization is used,income of the designers accounts for 34.33% of the total income,and income of the client accounts for 65. 67% of the total income. The income of the designers is 6. 90 times more than the designers＇ payment,and income which the client acquired is net income basically. Obviously,on the basis of this distribution mechanism,the enthusiasm of the client and designers could be stimulated fully,and achieving the win- win goal would be possible.