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在大型储液池构筑物中采用土工膜防渗是一种经济、合理、可行的技术措施。但是与其他防渗形式的建筑物相比，土工膜防渗的建筑物抗浮稳定问题更显突出。如果对于土工膜防渗大型储液池采用传统的抗浮措施，不仅设计、施工困难，而且费用昂贵。因此，寻求一种积极主动，便于施工，投资少的合理的抗浮措施，是土工膜防渗技术应用的关键。本文结合某热电厂１２万ｍ３的备用水池的工程设计，通过土工膜防渗方案的比较，提出了一种浮力可控水池的设计法。
The use of geomembrane impermeability in large reservoir structures is an economical, reasonable and feasible technical measure. However, compared with other impermeable forms of buildings, geomembrane impermeable buildings anti-floating stability is even more prominent. If traditional anti-flooding measures are used for geomembrane seepage-proof large reservoirs, it is not only difficult to design and construct, but also expensive. Therefore, it is the key to apply the anti-seepage technology of geomembrane to seek a reasonable anti-floating measure which is proactive, easy to construct and less investment. In this paper, a thermal power plant 120,000 m3 of spare pond engineering design, through the comparison of geomembrane seepage control program, put forward a buoyancy controllable pool design method.