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Some descriptions of D'Appolonia projects related to coal refuse facility design and construction are provided in the following:

EXAMPLE PROJECTS

Design of 75-Acre Coal Refuse Slurry Impoundment (PDF-1002K)
D'Appolonia prepared the design and permitting submittals for the construction and operation of a 75-acre coal refuse slurry impoundment for a two-million-ton-per-year coal preparation plant in Southeastern Ohio. We subsequently prepared reclamation plans for dewatering, regrading, capping and covering the disposal facility after mining operations ceased.
Upstream Expansion of Coal Refuse Disposal Facility (PDF-1194K)
D'Appolonia provided engineering and permitting services for the upstream expansion of the slurry impounding coal refuse disposal facility at Emerald Mine No. 1 in Greene County, PA. The final disposal facility configuration included two dams totaling more than 2000 feet in length, with the main dam exceeding 370 feet in height.
Design/Construction Monitoring of Coal Refuse Disposal Facility (PDF-561K)
D’Appolonia provided engineering and construction monitoring services for development of a slurry impounding coal refuse disposal facility. The facility was designed for 15.9 million tons of disposal capacity and a 19-year service life. Upstream construction was employed for the staged raising of the impounding embankment. The coarse coal refuse embankment stages were designed with internal drains for seepage control and sized for projected refuse generation rates.
Seismic Piezocone and Dilatometer Testing of Coal Refuse (PDF-1081K)
D’Appolonia performed an in-situ testing program at the coal refuse disposal impoundment at a western Pennsylvania mine to confirm the applicability of shear strength properties for fine coal refuse (FCR) used in slope stability analyses of the pond embankment and to evaluate potential liquefaction susceptibility of the FCR.
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