INSTRUMENTATION AND ANALYSIS OF RETAINING WALL

Abstract

A reinforced soil retaining structure is usually defined as the vertical wall retaining structure which is constructed by enhancing the stability of backfill of wall with the help of placement of reinforcing materials for eg. Geosynthetics, geogrids and steel strips within the backfill. Retaining walls with Reinforced backfill are structures which are considered as flexible because the friction between the reinforced soil and reinforcement materials and connection parts between walls and reinforcement materials help it in resisting earth thrust through friction. Due to this reason only, retaining walls with reinforced backfill are considered as much better seismic resistant structure than normal retaining walls. Because of this reason, in recent times, retaining walls with reinforced backfill are adopted much more as a railroad bed bearing structure. However analysis of displacement characteristics and acceleration of retaining walls with reinforced backfill because of impact loading of moving loads have been done rarely and hence applicability of reinforced retaining walls have not been scientifically established. Experiments are conducted in this project through the application of impact as well as dynamic loads to a retaining walls with reinforced backfill in order to study its behavior on the basis of magnitude and location of impact loads. Shake table tests is performed on retaining wall with reinforced backfill in order to analyze the dynamic behavior and various parameters of wall and compare the results with and without the application of geofibres.