PROJECTS

ColoWyo Coal Mine Spoil Slope Failure Analysis

CLIENT ColoWyo Coal Mine

Location Meeker, CO

When a 150-foot tall spoil fill slope failed during a wet spring, the landslide encroached into planned mining areas, resulting in a potential loss of coal resources. 

Shannon & Wilson analyzed the slide and designed stable slope configurations, which included a rock toe buttress and toe drains.  After slope reconstruction, Shannon & Wilson installed an instrumentation system to monitor slope movement and groundwater conditions. The instruments included Time Domain Reflectometry cables (TDR), piezometers and GPS systems.

The instrumentation included solar-powered instrument loggers, which sent data via radio and the mine mesh network to on-site servers. Comprehensive software allowed collection, graphic display, and review of data via the internet whether on- or off-site. We also set triggers to send automatic e-mails to mine engineers, pit managers and security if instrument readings exceed predefined limits.

MARKETS SERVED
industrial Mining
SERVICES PROVIDED
Instrumentation Geologic Hazards
Office
Denver
KEY PERSONNEL

David Asunskis
Engineer

Matt Grizzell
Senior Engineering Geologist

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