高速公路服务区给排水情况调查及影响因素分析

Investigation and Analysis of Influence Factors for Water Supply and Drainage in Service Areas of Expressway

高速公路服务区生活污水排放是服务区对周边水环境影响的主要方式。研究通过现场调查、问卷调查方法,收集了目前高速公路服务区交通量、客流量、生活用水、污水排放量等信息,并应用统计学方法分析了它们之间的关系。结果表明:(1)服务区日均用水量与日均排水量呈现较好的正相关关系;服务区交通量与日均客流量、日均用水量均呈正相关关系;日均用水量随日均客流量的增加而增加,在客流量较小的情况下,日均客流量与用水量线性拟合关系相对较好。(2)不论是基于全部调查数据的回归分析结果还是以交通量划分的两类服务区的回归分析结果,在决定服务区日均用水量的各变量中,服务区工作人员数量对日均用水量的影响大于日均客流量对日均用水量的影响,随着交通量的增加,工作人员数量对用水量的贡献降低。

The main influence of the service areas to surrounding water environment is the draining of waste water. The traffic volume, number of passengers, domestic water and sewage emissions are investigated by site investigation and Questionnaire, the statistical methods are used to analyze the correlation of the factors above. The results show that： （1） The average daily water consumption of the service area is positively correlated with average daily sewage; the average daily traffic volume is positively correlated with number of passengers and average daily water consumption~ and the daily average water consumption increases with the increase of the average daily traffic, while in the case of smaller traffic, the linear relationship between average daily traffic and water consumption is better; （2） whether based on the regression analysis of all records or records divided by traffic volume, the number of staff of the service area is a more important variable to the average daily water consumption than the average daily number of passengers, with the increase in traffic volume, the contribution of service area staff to water consumption is reduced.