Abstract:In order to further prevent and control the risk of piping, a theoretical model for piping prediction is established using the flood control embankment of Poyang Lake as the research object. The GeoStudio 2018 software is used to simulate and analyze the flood control embankment, setting three key factors of rainfall intensity, rainfall type, and rainfall time, as well as four working conditions. The damage calculation of the flood control embankment is carried out using the See/W module and Sigma/W module, respectively. The results show that only under the fixed reservoir water level, different rainfall will occur. The phenomenon of pipe surge, and the pipe surge will be damaged by the fixed reservoir water level of 23 m+rainfall time 20~30 d+rainfall intensity 0. 06 m/d, the pipe gushing point is located at the foot of the downstream slope 0. at 2 m; A reverse filtration covering scheme was proposed, and the corresponding numerical simulation model was established. The solution has been verified to meet the requirements of the relevant specifications.