Abstract: Determining the total price of construction projects and effective control of investment are not only important components of construction project management, but also directly related to the economic benefits of investment institutions. Taking 4 different construction schemes of an oil depot as examples, the project cost evaluation index system is constructed. On this basis, technical and economic analysis was introduced through cloud model, classification standard was established, and entropy weight method was used to determine the weight of all grass⁃roots indicators. Finally, four construction schemes were evaluated based on cloud model generator. The results show that the order of membership of the schemes is M1＞M3＞M2≈M4. The peak point of M1 appears earliest, between 2.0 and 2.5, and the peak point of M4 appears later. The influential basic indexes are fire protection engineering, foundation engineering, heat insulation engineering and project measure cost, of which the measure cost accounts for more than 1/10 of the total project cost. Therefore, on the premise of ensuring the construction requirements, we should strengthen the control of the project cost in such aspects as fire engineering, foundation engineering, thermal insulation engineering and project measure cost, so as to achieve the purpose of the optimal design and the most economical investment in the construction of the best project.

Key words: Oil depot construction, Entropy weight method, Cloud model, Project cost evaluation system, Cost control

摘要： 建设工程总价的确定和投资的有效控制，不仅是建设项目管理的重要组成部分，而且与投资机构的经济效益直接相关。以某油库4种不同建设方案（Mi，i＝1—4）为实例样本，构建了项目成本评价指标体系；在此基础上，通过云模型引入技术经济分析，建立了分级标准，采用熵权法确定了所有基层指标的权重；最后，基于云模型发生器对4种建设方案进行了评价。结果表明，方案隶属度排序为M1＞M3＞M2≈M4；M1的峰值出现最早，位于2.0～2.5，M4的峰值出现最晚；影响力较大的基础指标是消防工程、地基工程、隔热工程以及项目措施费，其中项目措施费占比超过总工程造价的1/10。因此，在保证建设要求的前提下，应加强消防工程、地基工程、隔热工程和项目措施费等方面的工程造价控制，达到以最优的设计、最经济的投资建设最佳工程项目的目的。

关键词: 油库建设, 熵权法, 云模型, 工程造价评价体系, 造价控制