G.L. Tiley & Associates Ltd. will handle all elements of structural design in the hoist system.
Headframe Layout and Design
Hoisting plant general arrangements are produced for feasibility and final designs
Headframes are modeled with a finite element analysis program and designed for working and rope breaking loads
Hydraulic dumps or scroll plate supports are designed
Rope changing procedures and handling equipment are provided
Finite Element Analysis of Headframes, Bins, and Structures
Headframes are modeled with a finite element analysis program and designed for working and rope breaking loads
Bins are sized for production rates and storage capacities
Foundations, air plenums, piles and/or spread footings are integrated into the top of shaft design
Shaft Design
Rectangular timbered, concrete lined and unlined circular shafts are designed
Shaft liners are designed to withstand hydrostatic pressures if required
Shafts can be designed for sinking through frozen ground
Compartments are sized for skips, cages and services, integrating the entire hoisting plant for production and service requirements
Rope and Fixed Conveyance Guiding System Design
Rope guides are designed with either cheese weights or spring tensioned glands
Wood, steel and composite guides are designed using Slam Force Analysis calculations based on guide support misalignment and conveyance effective mass
Guides are designed with low stiffness supports to absorb shocks from conveyance slamming loads
Loading Pockets Design
Loading pockets are designed with pan, chain or vibrating feeders to regulate the ore flow
Measuring bins are designed for volumetric or weight measurement
Transfer cars or pantleg chutes are designed for multiple skip loading
Hydraulic Dumps, Bins, Chutes, and Conveyors Design
Hydraulic dumps are designed to reduce hoisting cycle times
Bins are sized for production rates and storage capacities
Conveyors are designed to match mill input rates
Upgrading Existing Hoisting Plants for Higher Capacities
Hoisting plants are evaluated for ultimate capacities
Hoisting plants are inspected for deficiencies and repaired
Member reinforcement or additions are designed to reduce high stressed members
Headframes are re-rated for increased production rates and loadings
Shaft Sinking
Galloway Designs
Buckets & Crosshead Gear Designs
Underground Salt Mine Shaft Maintenance Platform
A 35'0" tall aluminum work stage, consisting of four decks, was designed for guide changing, scaling, and concrete lining of a salt mine.
The decks are hinge connected to the frame and can be manually raised during ascent or descent while performing shaft maintenance.
The mid decks can be removed during guide changing operations. The bottom deck is designed to accomodate heavy equipment.
There are two monorails on either side of the work stage for guide changing operation.