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Bearing stresses are very common in aerospace engineering. It occurs on the surface of contact between any two structural members. Bolts, pins, and rivets are classic examples of where bearing stres
Ppurpose of the exercise is for students to develop a shaft sinking and lining strategy for the site and
Design a suitable ore pass to transport ore a vertical distance of 200m from the extraction level to the transport level of a block caving mining operation.
Describe a tunnel-boring machine in detail and cite examples of their use. Particular emphasis should be placed on the cycle of operations for such a machine.
State reasons for the popularity of decline mining in modern operations. What factors need to be taken into account in deciding the cut off depth beyond which shaft operations should be used instea
Determining the shape of shafts and the size of shafts - Detail the unit operations within a conventional drill and blast shaft sinking operation including the shaft bottom operations as well as tho
Briefly describe the mechanisms involved in the excavation of rock - What parameters are used when determining the shape of shafts and the size of shafts?
Determine concentration of fumes after they have spread throughout the drive but before they have entered the decline
What is the total development airflow and for a single Stope determine the required airflow for diesel dilution if the requirement is for 0.05 m3/s of air per kW of diesel power?
Draw in a decline from the surface (at -100) with nodes placed at every sub level to allow the break-offs to be established. Two ways are recommended to draw horizontal airways between levels.
Determine the airflows and pressure drop in each of the branches and what are the flows and pressure drops in each of the branches?
Determine the airflows in each branch and what are the flows and pressure drops in each of the branches? Remove the restrictions from the previous question.
List the main sources of heat and humidity in mines and briefly describe the methods that can be used to control heat and humidity in an underground mining situation.
Describe the various methods of methane drainage available to drain gas for longwall mining operations and methane drainage of longwall operations what factors influence the spacing of drainage boreh
Determine the dry/wet bulb temperatures of the mixed airstream and calculate the dry/wet bulb temperature assuming a pressure of 100 kPa and determine the effect on the radon daughter concentration.
Determine the cumulative exposure in WLM and determine the rate of emanation into the stope - working level of radon daughters at exit due to the initial radon
Determine the characteristic curves for the fan and define Kirchoffs first and second laws - determine the pressure to be developed by a single mine fan to ventilate the workings.
what is the pressure drop in each of the airways and the total pressure drop in the series combination of airways and what is the pressure drop in each of the airways and the total pressure drop in th
Calculate the airway resistance and the frictional pressure drop and determine the equivalent length for a sudden contraction in a mine airway from a cross-sectional area
Describe the method of undertaking an anemometer traverse for a mine airway and describe the two main methods of undertaking a pressure survey in a mine. What advantages and disadvantages do each met
Calculate the volumetric flow rate and the mass flow rate and determine the average flow velocity of the air and the air quantity flowing
Calculate the volumetric flow rate and the mass flow rate assuming that the air has a density of 1.2 kg/m3 and describe the method of undertaking an anemometer traverse for a mine airway
Show a meaningful block diagram and a brief description of its architecture and summarize the key architectural features of these microcontrollers that you, as a designer, view impor
Write a procedure (make-queue) that produces independent first-in-first-out queue objects, using a message-passing style.
The L-beam illustrated in Figure is to carry, in addition to its own weight, a dead load g = 25 kN/m and a live load q = 100 kN/m over a simply-supported span of 8 m. Design and detail the tension