Instrumentation of dredge spoil for landfill construction
The Delaware Solid Waste Authority's Northern Solid Waste Management Center is located outside of Wilmington Delaware at Cherry Island, a former dredge disposal site. Dredge spoils, of very low permeability, range in depths up to 30 m (100 feet) which form a natural liner and the foundation for the 140 ha (350-acre) municipal solid waste landfill. The soils beneath the landfill have been extensively instrumented to measure pore pressure, settlement and deflections, using inclinometer casings, standpipe piezometers, vibrating wire piezometers, pneumatic piezometers, settlement plates, liquid settlement gages, total pressure cells and thermistors. The nature of the existing waste and anticipated settlements (up to 6 m (19 feet)) have required some unique installation details. The instrumentation data has been integral in planning the landfilling sequence to maintain perimeter slope stability and has provided key geotechnical parameters needed for operation and construction of the landfill. The performance of the instrumentation and monitoring results are discussed.
- Research Organization:
- Gannett Fleming, Inc., King of Prussia, PA (US)
- OSTI ID:
- 20005860
- Resource Relation:
- Conference: Field Instrumentation for Soil and Rock, Atlanta, GA (US), 06/18/1998--06/19/1998; Other Information: PBD: 1999; Related Information: In: Field instrumentation for soil and rock. ASTM special technical publication 1358, by Durham, G.N.; Marr, W.A. [eds.], 426 pages.
- Country of Publication:
- United States
- Language:
- English
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