ACCOMPLISHMENTS

WIRE ROPE & CONVEYANCES 

Engineering, procurement, & scheduling of replacements, attachments, fixtures and conveyances at multiple mines, down to 1,750 ft.

BACKFILL & SHOTCRETE SYSTEMS 

Includes design, construction, operation and maintenance of cemented rockfill and paste systems to support multi-plant complexes. 

BULK COMMODITY DELIVERY

Design & construction of borehole & shaft systems for dry and wet commodities, including fuels and lube to depths of up to 1,675 feet. 

DUMP LEACH & TRIPLE LINING 

Design, permitting and construction of a triple-lined valley fill leach pad, at schedule and costs equivalent to double-lined facilities. 

ENVIRONMENTAL HYDROLOGY 

Surface and groundwater analyses and monitoring including forensic engineering, monitoring locations and protocols, and excursion/flood routing evaluations. 

SHAFT CONSTRUCTION ANALYSES

Ground characterization, structural, dog-leg analyses for siting, construction method and lining recommendations

UNDERGROUND STABILITY

Stress-relief overcoring, detail drift mapping, core logging, ground characterization & boundary element analyses. Included are operating & repair histories for ground control in construction, development & operation in a range of supported, self-supported, and caving mining methods.

EQUIPMENT MAINTENANCE

Includes at various mine sites: project engineering, replacement of 1,250HP main fans, and replacement of a 36,000 tpd coarse material handling tower with no unplanned disruption.

SLOPE STABILITY

Includes detail line rock mass

characterizations, and engineering piezo meter, optical, inclinometer and exten-someter arrays. Caliche to smectites, moraine to silica-flooded porphyry.

U/G SERVICE WATER REG.

Design, installation & maintenance engineering of 1,200 gpm supply across two shafts, with 1,925 vertical feet of in-shaft, on-station and ramp regulation.

MINING METHOD ANALYSES

& SELECTION

Method analyses including conversion studies and multiple-method selections, both underground and surface.

TAILS STORAGE FACILITY EXPANSION

Conversion of downstream earthfill embankment whole tails TSF to buttressed rockfill upstream using sub- aerial deposition – increasing capacity 2.5X within same footprint.

COST ANALYSES & PLANNING

Component and system estimation and closure, mine- and mill-wide capital and operating cost evaluation and tracking.

MECHANICAL COMPONENTS

Material handling, wear surfaces, rockboxes, support & lifting arrangements and a break-out wrench – Innovative solutions, proven and reliable engineering for mines and miners.

CONTACT

C 775.397.2683 | T 775.777.7455 | F 775.549.8949 | RSACRISON@FRONTIERNET.NET

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