Coal

Elk Creek Geotechnical Program Agapito Associates, Inc. (AAI) has been involved in long-term geotechnical investigation and design at the Oxbow Mining, LLC, Elk Creek Mine, dating back to the [...]

Underground Coal Gasification Cavern Subsidence GasTech, Inc. (GasTech) is in the process of permitting a series of underground coal gasification (UCG) wells as part of a pilot project in the [...]

Chevron Mining, Inc. Highwall Slope Stability AAI has investigated various aspects of highwall stability at several pits at the Kemmerer Mine, including large-scale slope failure, wedge analysis, [...]

Energy West Mining Company In preparation for longwall mining beneath a 345-kV electrical transmission line, AAI was retained to evaluate the impacts of surface subsidence to a series of power [...]

West Ridge Resources, Inc. (WRRI) commissioned Agapito Associates, Inc. (AAI) to analyze subsidence potential from planned longwall mining in the vicinity of the Grassy Trail reservoir adjacent [...]

Engineering Support for Start-up of Large Underground Coal Operation—Trinidad, Colorado Starting in 2009 and continuing into 2011, Agapito Associates, Inc. has provided most of the mining [...]

AAI has assisted NIOSH (National Institute for Occupational Safety and Health) in several of their mining research efforts.  AAI provided the programming for the STOP program (Support Technology [...]

West Elk Mine—Somerset, CO AAI has provided underground geotechnical engineering services to Mountain Coal Company’s West Elk Mine since the 1980s.   Services include installation of geotechnical [...]

Longwall Optimization In 1997, AAI conducted three studies for West Ridge prior to mine development.  The first study addressed longwall panel orientation based on local fracture mapping, [...]

Canyon Fuel Company Longwall Mining—Shield Support Densities AAI has performed a full range of geotechnical analyses for SUFCO in support of their longwall operations, including pillar design, [...]

Geotechnical Evaluation and Longwall Feasibility AAI performed geotechnical and economic evaluations for the feasibility study of longwall mining at the Trapper Mine for Mencon, LLC. A [...]

  Highwall Mine Design, Rock Testing, and Longwall Prefeasibility Study AAI has performed a variety of services for Colowyo, including highwall mine design, underground prefeasibility, and [...]