A Nebraska Power District's Experience in Stabilizing by Silt Injection

by Clifford L. Emmerling, Federal Energy Regulatory, Commission, Hydropower Licensing, West Branch, Chicago, IL, USA,
Michel G. Didos, Federal Energy Regulatory, Commission, Hydropower Licensing, West Branch, Chicago, IL, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

The structures, rolled earth and concrete, of the Central Nebraska Project are constructed on foundations of loessial soils that range from a few feet to more than 100 feet in depth. The loess in its natural state has a low density and is therefore susceptible to considerable consolidation and settlement when saturated. The owner, cognizant of this problem, developed a method of treating the foundation material and has been using it successfully since the early 1940s. The project is used to impound and utilize flood water for the combined purposes of flood control, irrigation, and power.

Subject Headings: Soil settlement | Power plants | Loess | Hydro power | Foundation settlement | Consolidated soils | Soil water | Nebraska | United States

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