基于公路工程造价因子模型的造价敏感性分析

Cost Sensitivity Analysis Based on the Highway Engineering Cost Factor Model

为了对公路工程的造价进行更为科学、主动的控制和管理,在对公路工程造价的费用构成特点进行分析的基础上,构建了公路工程造价因子模型,该模型以工、料、机作为基础的造价因子,通过构建工、料、机造价因子的变化幅度计算模型,达到对因工、料、机造价因子变化而对整个公路工程各部分费用引起变化的幅度进行准确的估量,进而准确地估计对整个综合总造价的影响程度。同时结合典型项目进行实际测算分析,验证了测算模型的合理性与科学性,从而为造价因子价格变化引发的公路工程造价影响程度及公路工程总造价对造价因子的敏感性的判读提供了一种科学的手段。

In order to make more scientific and active control and management for the cost of highway engineering,this paper,based on the analysis of the characteristics of the cost structure of the highway project cost,constructs a hierarchical cost weight model using the first class factor and the two stage factor. This study also uses the typical project to conduct the actual measurement and analysis to verify the rationality and the validation of the model. Thus it provides a scientific method to interpret the influence degree of the cost factors as well as the sensitivity of the highway project total cost to the cost factor.