Abstract
Studies for analysis of deformation behavior of geosynthetics suspending over voids in landfills are very limited, especially for situations in which several voids are closely distributed. Hence, the main objective of this paper is to study the behavior of geosynthetics over voids in a landfill. The coupling effect of two adjacent voids on geosynthetics and the simplified interface friction formula between geosynthetic and soil being considered, an analytical model is established to calculate the deformation of geosynthetics. Compared to the situation of two uncoupled cracks, the maximum strain of geosynthetics is greater and the maximum settlement is smaller when the two voids are coupled.
