鸡陵岗泵站进水流道的混凝土浇筑质量控制
2021-07-20丘庆辉
丘庆辉


摘 要:对于水利工程建设而言,泵房进水流通施工是极为关键的环节,对水利工程的排涝、流量乃至整体运行效率有着至关重要的影响。因此,确保泵房进水流道施工质量十分重要。本文以佛山市三水区白坭镇鸡陵岗泵站工程为例,对泵房进水流道施工存在的问题进行深入分析,进而从混凝土原材料配合比、模板工程、浇筑等方面探讨了泵房进水流道施工的相关措施,以提高泵房进水流道混凝土浇筑施工质量。
关键词:泵站;进水流道;混凝土;浇筑;控制
中图分类号:TV544文献标识码:A文章编号:1003-5168(2021)04-0082-03
Absract: for the construction of water conservancy project, the construction of influent circulation in pump room is an extremely key link, which has a vital influence on the drainage, discharge and even the overall operation efficiency of water conservancy project. Therefore, it is very important to ensure the construction quality of inlet channel in pump room. Taking the project of Jilinggang pumping station in Baizhang Town, Sanshui District, Foshan City as an example, this paper analyzes the problems existing in the construction of the inlet channel of pump room, and then discusses the relevant measures of the construction of the inlet channel of pump room from the aspects of concrete raw material mix ratio, formwork engineering, pouring and so on, in order to improve the construction quality of the inlet channel concrete pouring in pump room.
Keywords: pumping station;inlet passage;concrete;pouring;control
鸡陵岗泵站工程位于佛山市三水区白坭镇樵桑联围桩号15+700处,泵站设计排涝流量为38.0 m3/s;总装机容量为4 000 kW(4×1 000 kW),水闸总净宽为10.0 m。自排涵闸按2孔设计,单孔孔径为4.5 m×5.0 m;配套建设进水渠总长约为825 m,底宽为40.0 m,出水渠总长约为522 m,底宽为30.0 m。工程技术指标如下:本工程等别为Ⅲ等,工程规模为中型,闸站主要建筑物按2级设计,次要建筑物按3级设计;进、出水渠主要建筑物级别为3级,次要建筑物级别为4级;水泵采用1600ZLB8.5-7.5立式轴流泵。
1 工程概况
鸡陵岗泵站总装机容量为4 000 kW(4×1 000 kW),机组中心距为6.50 m,机组与流道接口半径为830 mm,底板垂直水流向宽为27.50 m。流道层位于泵站主体-4.00~-1.15 m高程内,长为10.58 m,宽为5.00 m。底板面自高程-2.34 m下降至-4.00 m,呈倾斜状,流道进口断面顶高程为-1.15 m,斷面尺寸为5.0 m×1.6 m,主要施工内容为肘型流道和空腔混凝土的施工,一次浇筑方量为661 m3。进水流道施工平面布置图如图1所示,进水流道施工剖面布置图如图2所示。
2 泵房进水流道混凝土施工问题分析……p>
