15 — Mining Engineering
Model of Wedge Cut
A model illustrating the wedge cut pattern of blast holes used to create a free face in tunnel and drivage blasting. Supports instruction in drilling and blasting design and burn/cut geometry.
01 — Same Category
More in Mining Engineering
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19
Runaway Switch
A haulage-track safety device that diverts runaway tubs or mine cars off the track on gradients, protecting workers and equipment lower down the roadway. Demonstrated in mine transport and haulage safety practicals.
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20
Drop Warwick
A suspended baulk or bar that drops across a haulage track to arrest runaway tubs on inclined roadways. Used to teach statutory runaway-prevention arrangements in rope haulage systems.
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21
Jazz Rails
A section of deliberately offset or staggered rails installed on haulage inclines to derail and arrest runaway tubs before they gain dangerous speed. Demonstrates passive runaway-protection devices in mine transport instruction.
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22
Retarders
Track-mounted devices that apply controlled resistance to tub or mine car wheels to limit speed on gradients. Used in haulage laboratory demonstrations of speed control and safe train handling underground.
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23
Model of Fore Poling
A model demonstrating the fore-poling method of advancing support, in which poles or sheets are driven ahead of the face to hold weak ground while excavation proceeds. Used in instruction on tunnelling and drivage through loose strata.
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24
Working Model of Ventilation District of Underground Coal and Metal Mine
A working model of a complete ventilation district showing intake and return airways, districts, and control devices for both coal and metal mine layouts. Enables students to trace air circuits and understand district ventilation design.
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26
Model of Underground Mine Support
A model displaying common underground support systems such as props, bars, chocks, and roof bolts as applied at roadways and faces. Used to teach strata control practice and support selection.
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27
Single Height Tell-Tale
A borehole-mounted roof movement indicator with a single anchor horizon that gives a visual reading of roof sag above a roadway. Used to teach routine strata monitoring and trigger-level based support management.
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28
Dual Height Tell-Tale
A roof movement indicator with two anchor horizons that distinguishes movement within the bolted height from movement above it. Demonstrates diagnostic strata monitoring in roof-bolted roadways.
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29
Rotary Tell-Tale
A tell-tale with a rotary dial indicator that amplifies small roof displacements for easier reading from the roadway floor. Used in strata control practicals to illustrate sensitive measurement of roof dilation.
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30
Auto Warning Tell-Tale
A tell-tale fitted with an automatic visual or audible alarm that triggers when roof movement exceeds a preset limit. Teaches action-level based monitoring and early warning practice in underground roadways.
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31
Pitot-Static Tube
A probe that senses total and static pressure to determine air velocity and velocity pressure in ducts and airways. Used with a manometer in ventilation laboratories for velocity traverses and fan duct measurements.
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