Laboratory investigation of geosynthetics reinforcement for the prevention of sinkhole formation induced collapse

The concern study presents the results of laboratory investigation on geosynthetic rein-forcement to prevent the sinkhole formation induced collapse because of water pipeline leakage. The aim of present study is to investigate the appropriateness of the combination of geogrid reinforcement parame-ters to reduce the failure mechanism because of sinkhole formation. To achieve the objectives of present study a series of reduced scale model tests were carried out with emphasis on the effects of geosynthetics reinforcement parameters such as density (number) and spacing between the geogrid layers to evaluate the behavior of ground over the sinkhole. The results of present study indicate that the use of geosynthetic re-inforcement in an effective way can significantly reduce not only the collapse of ground but also ground surface settlement and earth pressure over the sinkhole.