Abstract
As a new kind of seepage control material, the geomembrane has been widely used in embankment dam, yet the seepage characteristics and effect of the geomembrane have not been studied on theory. Based on seepage mechanism in geomembrane, this thesis classifies the seepage into two types: one is permeability of geomembrane itself; the other is defect leakage flux in geomembrane. After studies respectively the influencing factors of permeability and defect leakage flux in geomembrane, the corresponding engineering measures were summed up. The study shows that the reasonable design and careful construction are requisite condition for the success of geomembrane seepage prevention works. At last, the philosophy of leak-position detection with electricity and its function in construction quality assurance was described.
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