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本文用土工离心模型试验方法对均质坝上游土工膜防渗层的稳定性状作了较为系统的研究，探讨了土工膜类型、上游坡比和压实粘土层的厚度三种因素对这类土工膜防渗体稳定性的影响规律。在此基础上用极限平衡法推导了土工膜防渗层安全系数计算公式，用它求得的安全系数真实反映了土工膜防渗层模型的安全性。离心模型试验结果和建立的稳定分析公式为用压实土层代替碎石垫层铺设土工膜防渗层提供了先例和设计计算方法，可大大节省工程费用。
In this paper, geotechnical centrifuge model test method for homogeneous dam upstream geomembrane impermeable layer of the stability of the more systematic study of the geomembrane type, upstream slope ratio and compacted clay thickness of three factors such as geotechnical Influence of Stability of Film Anti-seepage Body. On this basis, the limit equilibrium method is used to derive the formula for calculating the safety coefficient of geomembrane impermeable layer. The safety factor obtained by it can reflect the safety of geomembrane impermeable layer model. Centrifugal model test results and the establishment of the stability analysis formula for the compaction of soil layer instead of rubble laying geomembrane impermeable layer provides a precedent and design and calculation methods, which can greatly save engineering costs.