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09:55 Feb 10, 2009
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English to Polish translations [PRO] Tech/Engineering - Construction / Civil Engineering
English term or phrase:passive resistance restraint
Landfill liners with leachate collection sand or gravel above them until such time that the solid waste acts as a passive resistance constraint
(uszczelnienia składowisk odpadów stałych z nadległą warstwą żwiru lub piasku odprowadzającą odcieki)
Whenever a lined slope (geomembrane, GCL, or compacted clay) is covered with soil, a stability calculation must be made to assess the potential for sliding failure of the soil. Three situations come to mind: (1) landfill liners with leachate collection sand or gravel above them until such time that the solid waste acts as a passive resistance restraint; (2) surface impoundment liners where the cover soil is placed over the geomembrane to shield it from ultraviolet light, heat degradation, and equipment damage; and (3) landfill covers that have topsoil and protection soil placed over the geomembrane. In all cases the soil layer is relatively thin (0.3 to 1.0 m), hence the sliding stability of such a veneer of cover soil is the issue.