高架道路排水安全保障技术体系研究与应用

发布时间：2018-10-15 19:35

【摘要】：本论文以中环线东段工程建设为依托,根据其主线全高架形式的特点,对高架道路路面排水水文与水力计算方法进行了总结与分析,包括汇流量计算、桥面雨水口泄水能力计算、纵坡段桥面雨水口截流率计算等。建立了高架道路排水设计计算流程,采用水力学理论分析方法对示范段进行了计算分析。采用计算流体力学(CFD)方法,对示范段高架雨水径流进行二维水动力学模拟,与理论分析方法进行对比分析。根据高架排水系统的特点,从路面、立管、地面、地下空间等方面选择适用的低影响开发技术,开展了大孔隙排水路面(OGFC)、高架立管雨水调蓄水箱、下沉式绿地、雨水花园、高架道路雨水储存利用系统的技术分析与研究,针对高架雨水储存利用和污染物控制提出了工程实施技术路线并开展了示范研究。研究结果表明,常规高架路面排水设计计算按照本研究总结的流程进行计算。超常规路段如大纵坡、超宽超高段等,建议通过计算机水力学模型进行模拟分析,必要时辅以物理模型试验。通过本技术示范研究表明,高架雨水储存利用技术和污染物控制技术对COD、悬浮颗粒物、NH3-N、总N、总P、重金属的去除效果较好,出水稳定性提高。
[Abstract]:Based on the construction of the eastern section of the Central Ring Line, according to the characteristics of the main line of the whole elevated structure, this paper summarizes and analyzes the hydrological and hydraulic calculation methods for the drainage of the elevated road surface, including the calculation of the sink discharge. The calculation of discharge capacity of Rain Water port of bridge deck, and the calculation of intercepting rate of Rain Water mouth of longitudinal slope section, etc. The design and calculation flow of viaduct drainage is established, and the demonstration section is calculated and analyzed by hydraulic theory analysis method. By using computational fluid dynamics (CFD) method, a two-dimensional hydrodynamic simulation of Rain Water runoff in the demonstration section was carried out, which was compared with the theoretical analysis method. According to the characteristics of elevated drainage system, the suitable low-impact development technology is selected from the aspects of pavement, riser, ground, underground space, etc. The (OGFC), viaduct of macroporous drainage pavement, Rain Water water storage tank, sunken green space, Rain Water garden, etc., are carried out. Based on the technical analysis and research of Rain Water storage and utilization system on viaduct, this paper puts forward the technical route of engineering implementation and demonstration research for the storage and utilization of viaduct Rain Water and the control of pollutants. The results show that the drainage design of conventional elevated pavement is calculated according to the process summarized in this study. It is suggested that the computer hydraulic model should be used to simulate and analyze the supernormal sections such as large longitudinal slopes and ultra wide and ultra high sections, and if necessary, physical model tests should be used. The results showed that the technology of storage and utilization of elevated Rain Water and pollutant control technology had better removal effect on COD, suspended particulates, NH3-N, total N, total P and heavy metals, and the stability of effluent was improved.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U417.3;U443.5

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