轻型井点降水在磐岭泵站重建工程中的应用

Application of Light Well Point Precipitation in Panling Pump Station Reconstruction Project

为排除施工区域基坑坡面与坑底渗水,必须结合具体工程对地下水位和基础开挖相关要求,选择适宜的基坑降水方案。揭阳市蓝城区磐岭泵站重建工程主泵房建基面的不同部位出现多处涌水带砂现象,为防止孔口扩大,设计提出采用轻型井点降水方案降低地下水位,并对轻型井点布置及主要设备选用等进行探讨。结果表明,轻型井点降水方法施工简便,降水速度快且工期、质量有保障,排水效果显著。

In order to eliminate the seepage of the slope and bottom of the foundation pit at construction area,an appropriate foundation pit scheme must be selected according to related requirements of groundwater level and foundation excavation of the engineering.In the reconstruction project of Panling pump station in Lancheng district of Yeyang City,there are many water-gushing sand phenomena in different parts of the foundation surface of the main pump house,in order to prevent the enlargement of orifice,the light well point dewatering scheme is proposed to reduce the groundwater level,and the arrangement of light well point and selection of major equipment are discussed.The results show that the light well point dewatering is simple to construct,the precipitation speed is fast,the project period and quality are guaranteed,and the drainage effect is remarkable.