13. Study of Scour Near Pier of Gandhi Setu in Ganga River

In this paper, an attempt has been made to carry out the study of scour depth at one of the piers of the Gandhi Setu in Ganga River near Gaye Ghat, Patna. Different parameters of the different empirical equations have been calculated by collecting soil samples from the site and analyzed in the laboratory. Based on these parameters, the scour depth is calculated by using different empirical equations given by different researchers such as Shen et al., the Modified Laursen, Jain and Fischer and Lacey’s. The actual scour was also measured near one of the piers of Gandhi Setu in Ganga River at Patna, in-situ measurement using the rope attached with heavy weight. It was found that the scour depth measured manually matches satisfactorily with the scour depth computed using Lacey’s empirical formula.