大型地下水池的新型抗浮设计

A New Anti-floating Design for Large Underground Water Basin

在发电工程中,给排水和水处理工程有各类水池,其中有大量的水池为地下式。当水池所在位置地下水位较高时,水池除了满足抗渗要求外,还需要满足抗浮,故地下水池抗浮成为一大技术要点。若地下水池的设计、施工不当致使水池的抗浮能力不够,在水池的使用过程中,水池可能会漂浮起来或整体失稳等事故,引起水池底板上拱、开裂等,影响其他构筑物的正常使用、增加维护管理费用。文章通过工程实例对抗浮设计进行方案比较,提出一种新型的抗浮设计方案,降低了工程造价,缩短了建设周期。该新结构型式的应用,将为类似工程提供设计方法和实践经验。

For power plant,there are all kinds of water basins,many of which are underground.When the unground water level is high,anti-floating design of underground water basins is another technique except anti-seepage.When the anti-floating capacity of basins is not enough due to the design or construction,the basins might float or overall unstability,accident such as upper deflection or crack of bottom slab might happen.The accident will take influence to the normal usage of other buildings and increase the maintenance cost.In this paper,caparison between different anti-floating design options of the project is made and a new anti-floating design for large underground water basin is provided to reduce the project cost and shorten the construction period.The application of new anti-floating design will provide design method and experience for similar projects.