摘要
以天津市中心城区典型区域的排水系统为研究对象,实地调研了管网设施运行情况以及管道沉积物状况,并探讨了排水系统沉积物形成过程的影响因素及其作用关系。结果表明,沉积物厚度与排水管径呈正相关关系、与水流速度呈负相关关系;不同材质的排水管道其沉积状况完全不同,钢筋混凝土管的沉积物平均厚度最大,PVC管的沉积物平均厚度最小;与分流制排水管道相比,合流制排水管道存在沉积物的比例更高、沉积物厚度更大。
Taking the drainage system of a typical urban area in central Tianjin as the research object, operation of pipeline network facilities and status of pipeline sediment were field researched, and influence factors of sediment formation in the drainage system and their relationships were discussed. The results showed that the sediment thickness was positively correlated with the drainage pipe diameter and negatively Correlated with the water flow velocity. Sedimentary condition of different drainage pipe materi- als were completely differentthe average thickness of the reinforced concrete pipe was the largest, and the average thickness of the PVC pipe was the smallest. Compared with separate drainage pipeline, the combined drainage pipeline had a higher proportion of sediment and a larger sediment thickness.
作者
周英
徐瑾
侯齐敏
ZHOU Ying;XU Jin;HOU Qi-min(School of Economics and Management,Tianjin Polytechnic University,Tianjin 300387,China;School of Management,Tianjin University of Technology,Tianjin 300384,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2018年第17期116-118,共3页
China Water & Wastewater
基金
天津市基础研究计划项目(17JCTPJC46500)
天津市高校“中青年骨干创新人才培养计划”项目
天津市科技计划项目(16ZXFWGX00090)
水利工程仿真与安全国家重点实验室开放基金资助项目(HESS-170)
关键词
城市排水系统
沉积物
影响因素
urban drainage system
sediment
influence factor
