建筑物采用土工膜垫层时,需要精心设计一个垫层系统。在该系统中,土工膜通常跟土工织物和(或)同类材料一起使用。多数情况下,尚须铺设一层厚厚的由天然或人工摩擦材料组成的保护层与之配套。垫层系统的稳定性问题,保护层是一个起控制作用的因素,衬垫边坡土体的水力条件也同样起控制作用。本文介绍了一种计算垫层系统稳定性的新方法,它能自动计算与各种破坏形式相对应的安全系统,也能考虑土体或土工复合材料的各种水力和力学条件。 When a geomembrane cushion is used in a building, a cushion system needs to be carefully designed. In this system, geomembranes are usually used with geotextiles and/or similar materials. In most cases, a thick protective layer consisting of natural or artificial friction material must be laid. The stability of the cushion system, the protective layer is a controlling factor, and the hydraulic conditions of the pad slope soil also play a role in control. This paper presents a new method for calculating the stability of the cushion system, which automatically calculates the safety system corresponding to various forms of failure and also considers the various hydraulic and mechanical conditions of the soil or geocomposite.