地铁通风空调造价指标特性分析

Characteristic analysis of cost index for ventilation and air conditioning in underground railway projects

以地铁通风空调造价指标作为研究对象,收集并选取国内74条地铁线路组成样本工程,结合3项统计学通用性指标(线路长度、车站数量、建筑面积)与3项热工学专项指标(气候分区、夏季空调室外计算干球温度、空气比焓),对样本工程的通风空调造价指标特性进行了线性拟合分析研究。结果表明,地铁通风空调造价指标与统计学通用性指标之间存在良好的线性拟合关系,与热工学专项指标之间亦存在明显的分类关联关系与变化规律。

Taking the cost index of underground railway ventilation and air conditioning as the research object,selects 74 underground railway lines as sample projects.Combined with three general statistical indexes(line length,number of stations,building area)and three specific thermodynamic indexes(climate zones,outdoor design dry-bulb temperature and specific enthalpy for summer air conditioning),performs the linear regression analysis of the cost index of underground railway ventilation and air conditioning in the sample projects.The results show that there are good linear fitting relationships between the cost index of underground railway ventilation and air conditioning and the general statistical indexes,and there are also obvious classification association relationships and change laws between the cost index of underground railway ventilation and air conditioning and the specific thermodynamic indexes.