Seepage Stability Analysis of Baliwan Pumping Station in the Eastern Route of South-to-North Water Transfer Project
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Abstract:
In order to resolve the complex seepage problem of the unconfined and confined aquifers in the Baliwan pumping station, several seepage stability control measures, such as underground continuous wall, drainage holes, horizontal drainage pipes, and relief wells, were applied to extend the seepage path, increase upstream head loss, and decrease downstream water level. The seepage field of the ground foundation was obtained using the three-dimensional seepage mathematical model, and the depth of underground continuous wall and the spacing of drainage holes, horizontal drainage pipes, and relief wells were also determined, which can optimize the seepage control measures. Therefore, the design difficulty of pumping stations was solved. The research results can provide reference for the seepage control design of pumping stations in the layered strata area in the plains.
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