A New Anti-floating Design for Large Underground Water Basin

Key words: 
• underground water basin /
• underground water /
• anti-floating design

Abstract: 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.