Laboratory Investigation of Geobag Revetment Performance in Rivers

Geobag (sand-filled geotextile bags) revetments have recently emerged as long-term riverbank protection measures in developing countries; however, their performance is still not well understood. The hydraulic stability of geobag used for has been studied within an extensive laboratory programme to improve our understanding the complete failure processes revetments. A 1:10 scale distorted physical model was tested a flume, comparing range different construction methods and revetment side slopes, subjected flow loading. results indicate that whilst mechanisms are highly dependent on water depth slope, method had no noticeable impact. It thus concluded dominating factor friction between individual geobags, which itself bag longitudinal overlap rather than specific method.