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Question 1.
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.
Question 2.
Describe the methods of mechanised tunnelling available. What are the advantages of mechanised methods of tunnelling over drill and blast methods?
Question 3.
Occupational health and safety is the primary criterion used in designing and undertaking mine development. Discuss this statement.
Question 4.
Describe the steps one would take when tunnelling through areas where the potential for an inrush of water exists. Detail the methods can be applied to minimise the risk of an inrush in such circumstances.
Question 5
A 6 m diameter TBM has been selected to undertake a tunnelling operation. It is to operate at 4 rpm with a cutter head power of 750 kW in medium strength rock. Determine the predicted machine excavation rate using the nomograph presented in the notes.
Question 6.
Describe with the aid of a diagram a typical blast design for a rectangular tunnel. Particular emphasis should be placed on identifying the cut, easer, trimmer and lifting holes. Why in such a round where ANFO is used for the majority of the holes might a more water resistant product be used in the lifter holes?
Environmental engineering, CEE 357 Winter 2014. HW#6 Assignment: - Find the ultimate BOD of the river water as it enters the lake. Find the value of the rate constant for BOD utilization in the river, k d,riv .
Topic is on RFID (Radio Frequency Identification) RFID Privacy and Security
I would like to use the each following methods to answer the (same question) as attached : VALUE MEASUREMENT MODELS GOAL PROGRAMMING OUTRANKING (ELECTRE I)
Reevaluate the separation using the same total amount of solvent in a counter-current cascade. How much improvement in separation is produced?
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.
Analyze a drier that reduces the moisture content of bentonite from 11% (bone dry basis) to 4% bdb. Assume the plant processes 100 tons/day is a gas fired rotary kiln
Write a procedure (make-queue) that produces independent first-in-first-out queue objects, using a message-passing style.
CEE 357 Win 2014 HW#4, What is the concentration of HCN(aq) in the solution? What would the partial pressure of HCN(g) be in the gas phase, if the gas equilibrated with the solution?
Design and modelling of adsorption chromatography based on isotherm data
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
Des ign Problems, You are required to report on an operating medium to large underground mining operation. Included in your report should be all or most of the items listed below:Production Methods Development Requirements Plans and Sections, Roc..
good understanding of Mil-Std-499 and Mil-Std-499A
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