斜坡式高程布置在山区水厂设计中的应用

湖南中部某县城地处湘中丘陵向湘西山地的过渡带,是一个以山地为主、丘陵次之、地表起伏不平的山丘区。该县城第二水厂采用"常规处理+深度处理"工艺,设计出水水质执行《生活饮用水卫生标准》(GB 5749—2006)。结合工艺流程及现状地形,采用斜坡式高程布置,无需设置中间提升泵站即可满足各工艺段需求。通过对水厂选址、平面及高程布置、构筑物优化设计等进行分析,为斜坡式高程布置水厂提供设计经验和参考。

Application of Sloping Elevation Layout in Mountainous Waterworks Design

A county town in central Hunan, which locates in the transition zone from the hills in central Hunan to the mountains in western Hunan, is a hilly area dominated by mountains, followed by hills, with uneven surface. The process of “conventional treatment + advanced treatment”was adopted in the second waterworks of the county, and the treated water quality was required to reach the Standards for Drinking Water Quality ( GB 5749 - 2006 ). Combined with the treatment process and the current topography, the sloping elevation layout was adopted for the reason that no intermediate pump station was needed for each process. Through the analysis of site selection, plane and elevation layout, optimal design of the structure and so on, the experience and reference for the waterworks design with sloping elevation layout were provided.