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Fluvial Recharge of Sand Mining Pit

by Nathaniel P. Jones, Boyle Engineering Corp, San Diego, United States,
Howard H. Chang, Boyle Engineering Corp, San Diego, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Accuracy in modeling fluvial processes becomes increasingly important as development occurs along waterways. The FLUVIAL-12 (1, 2) model is used to simulate the recharge of sand mining pits in the San Luis Rey River during a large storm. This study shows how the FLUVIAL-12 model produces a non-uniform deposition of sediment both in cross-sectional profile and longitudinal bed profile. The deposition pattern is modeled following an energy approach. By contrast, other models, such as the HEC-6 model, produce a uniform deposition of sediment. The FLUVIAL-12 results show more and earlier deposition of sediment in the upstream mined cross sections, which are closer to the sediment source, than in the downstream mined cross sections. It also shows more and earlier deposition in the deeper portions of the sand mining pits as opposed to the shallower overbank areas.

Subject Headings: Sediment | Soil analysis | Sand (hydraulic) | Soil water | Soft soils | Sediment transport | Sandy soils

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