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Ppurpose of the exercise is for students to develop a shaft sinking and lining strategy for the site and
The structure consists of two uniform members AB and BC, each weight 2kN. The member are pinned to each other at B, and the structure is supported by a pin at C and a surface at A having coefficient
a 1600ft long sag vertical curve(equal tangent) has a PVC at station 120+00 andelevation of 1500 ft.the initial grade is -3.5% and the final grade is +6.5%.
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.
John had a little business on the side and did not have a girlfriend when he was at school and ehnce he was able to save the $10,000 for his dream car. The dealer agrees to take the car back for $80
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.
A circular bar under pure torsion needs to transfer 50 N*m of torque. The total bar length is 1 m and the total rotation can not exceed 2 degrees. The bar is made of a material with G=3000 MPa.
A bar is under uniform axial loads. AB is 1 foot and has a area of .5 in^2 and BC is 1 foot and has an area of .3 in^2. AB has a 1000lb force putting it under tension and BC has a 500lb force puttin
Terry wants to purchase a used car for $8000. The dealer offered to finance the deal at 8.5% APR for 4 years with 10% down payment. Terry's bank will provide a loan at 7.8% for 3 years, but wants a
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
The initial concentration of carbon in the metal is 0.1wt%. We first do an experiment by applying a concentration of 5%wt of carbon at the surface of a similar slab and maintaining the system at 900
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
A single metallic crystal is oriented such that the normal to the slip plane and the slip directions are at angles of 50 and 40 degrees respectively, with the tensile axis
The bar is fixed at B (length=2a) with a pin support at A (length L=0). Additionally, at A is a torsion spring (spring constant Ca = EI/a) and an extension spring is attached at B (spring constant C
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?
average flow rate = .0022 m^3 /s (190 m^3 /d) Influent Substrate concentration = 250 mg/L as COD (all essentially soluble) Mean cell residence time is to be 5 days Volume of mix tank = 25 m^3 the re
An industrial waste water treatment plant discharges into a large river. the industrial waste water is at 1m^3/s and contains an ultimate BOD concentration of 300mg/L at a temperature of 30 degrees
A wastewater treatment plant receives 15 mgd of flow, with solids concentration of 230 mg/L. How many pounds of solids enter the plant every year
The steam exits the high-pressure turbine at 2 MPa, is reheated to 550 degree Celsius, and then expanded through a low-pressure turbine to 50 kPa.
if shaft A have 1200N.m torque with 25cm diameter and the shaft B have diameter of 52cm what is the torque of shaft be
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?
(a) Determine the ratio of model flow velocity to prototype flow velocity over the spillway for dynamic similitude. (b) Determine the ratio of model discharge to prototype discharge for dynamic simi
The flowrate in a rectangular channel is 20 m3/s. The width of the channel is 4 m and the depth of flow is 5 m. If there is an increase in the channel bottom elevation with NO energy loss,