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摘要: 研究了城市轨道交通全寿命周期成本构成, 定量分析了地铁成本各分项指标及各指标所占比重, 计算了地铁土建成本和机电设备成本。应用全寿命周期成本分析理论, 建立城市轨道交通的全寿命周期成本分析数学模型, 并提出分析步骤, 最后以地铁通风空调系统为全寿命周期成本分析对象进行实例分析。分析结果表明: 在地铁建设8项成本中, 土建成本比重最大, 占36.36%, 平均每公里造价为1.97亿元; 其次为机电设备成本, 占19.83%, 平均每公里造价为1.07亿元。利用所建模型计算通风空调系统与屏蔽门系统的全寿命周期成本, 结果分别为4 180.4万元和3 237.8万元, 屏蔽门系统全寿命周期成本较低, 因此, 前期建设成本高的方案可能后期运营成本低, 其全寿命周期成本可能较低。Abstract: The whole life-cycle cost components of urban rail transit were studied, every indicator of subway cost and its proportion were analyzed quantitatively, subway earthwork cost and mechanical and electrical equipments cost were calculated in details. According to whole life-cycle cost analysis theory, the mathematical model of whole life-cycle cost for urban rail transit was built, its analytical steps were proposed, and subway ventilation and air conditioning system was put forward as an example. Analysis result shows that the earthwork cost is the largest among eight costs, accounting for 36.36%, with an average cost of 197 million yuan·km-1; the second is mechanical and electrical equipments cost, accounting for 19.83%, with an average cost of 107 million yuan·km-1. The cost of ventilation and air conditioning system is 41.804 million yuan, and the cost of platform screen door system is 32.378 million yuan, the cost of platform screen door system is lower, so the plan with higher capital cost may lead to the less operation cost, and the whole life-cycle cost of urban transport system may reduce.
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Key words:
- urban rail transit /
- whole life-cycle /
- cost analysis /
- mathematical model
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