Within the scope of the research on the stability of open slope revetments, much knowledge has been developed about the stability of placed (pitched) stone revetments under wave load (CUR/TAW 1995) and stability of rock under wave and current load (CUR/CIRIA 1991). Until recently, no or unsatisfactory design tools were available for a number of other (open) types of revetment and for other stability aspects. This is why the design methodology for placed block revetments has recently been

more »

... d in applicability by means of a number of desk-studies for other (open) revetments: • interlock systems and block mats; • gabions; • concrete mattresses; • geosystems, such as sandbags and sand sausages; and other stability aspects, such as: flow-load stability, soil-mechanical stability and residual strength. This paper aims at giving a summary of the increased knowledge, especially that concerning the design tools that have been made available. The details behind it can be found in (Pilarczyk et al 1998) . cover layer phreatic level 1 high pressure below revetment