Regarding the inventory of their engineering structures, most owners of infrastructures have reached a good level today. Basic data of objects is available as well as information about the condition and the need of maintenance works in short-, medium- and long-term. Regarding retaining walls however, most inventories lack the most basic information about the object and subsequently all further necessary information for the maintenance management.
The "Team Risiko" proposes a project that aims at creating a basis for the risk-based maintenance of retaining walls. The project is divided into 5 modules. In the first two modules, the necessary basics are developed through the search and preparation of case studies and a consistent and purposeful classification of the retaining walls. In the third module, potentially critical changes of the actions and of the resistance are identified. From there, critical hazard scenarios are derived that could lead to an unannounced collapse of particular retaining wall types. In the fourth module, the direct consequences of a retaining wall failure are identified. In the 5th module, conclusions are drawn for the development of a future risk-based maintenance strategy.
