Abstract:The standard tail water discharge project in an area of Jiangsu Province adopts the pressure flow discharge. The land working well of the discharge pipe well passes through the current seawall and the beach land into the deep sea area. Due to the great impact on the safety of the seawall and the water ecology of the coastal beach land during the construction of the large-diameter pipeline, based on the current seawall structure type and the hydrologic conditions of the surrounding sea area, through comprehensive comparison and selection, the pipe jacking crossing the seawall is recommended for the construction. The safety influence analysis and calculation are carried out in the construction process of pipe jacking through seawall by the theoretical calculation and finite element calculation method, and the targeted key technologies to prevent and reduce seawall settlement are proposed. The implementation effect of the project is remarkable and can provide the reference for similar projects.
