Long-term deformations of municipal landfill bodies and their effects on functional safety of superficial sealing
Abstract
An approach to risk evaluation against the failure of waste deposit sealing layer is given. It is derived from experience gathered with TKO waste deposit closures.
Such deposits were monitored in Central Bohemia in the territory of the Czech Republic. Geodetic observations on such deposits carried out for five to eleven years provided a chance to obtain and interpret continuous deformation data series.
Results can increase functional reliability of their superficial sealing and can be used to optimise the time when closure and recultivation should start. The results concern superficial settlement, its development in time and irregularities that are practically very important.
Definition of failure criteria that would allow evaluation of limits in irregular deposit settlement is relatively difficult and should become a topic for further investigations and discussions.