Mining, Other Engineering

Assignment Help:
Students are to undertake a tunnel blast design for the following conditions:
• Tunnel is 5.5m wide by 5.5.m high
• Rock is a granite with a UCS of 300 MPa
• Drill hole diameter is 51 mm, hole length is 4m
• The cut is to contain 2 relief holes of 75mm diameter
• Dry conditions are anticipated, ANFO to be used with a density of 800 kg/m3 and a powder factor of 0.6 kg/m3
• Nonel detonators are to be used
Students are to determine:
1. The design of the cut, including burden and spacing for each element of the cut.
2. Burden and spacing of the easer, perimeter and lifer holes
3. Stemming length required
4. Method of hole priming
5. Firing sequence timings for the holes
6. Explosive utilisation
Results should be presented in a report format, including diagram s as required and details of calculations undertaken.

Related Discussions:- Mining

Capital management solutions, Objective of corporate financing Corporat...

Objective of corporate financing Corporate finance control is a division of financial that refers to the control of money of an organization. The attention of corporate financi

Aviation, Aircraft maintenance engineering

Aircraft maintenance engineering

Logic gate-nor gate, NOR Gate: Figure shows a further example of a 2 in...

NOR Gate: Figure shows a further example of a 2 input digital gate, again consisting of two NPN transistors, TR1 and TR2, in a different configuration. When input A and input

Aircraft maintance, Explain different types of intakes of aircraft

Explain different types of intakes of aircraft

Classification of plastic, Q. Discuss the classifications of plastics.     ...

Q. Discuss the classifications of plastics.                                                      OR      Discuss the general properties and classification of plastics.

Active clearance control system, Active clearance control system The sy...

Active clearance control system The system provides fan discharge air for cooling the core compartment and the low-pressure turbine case. At low altitudes the core engine requ

ALGORITHM, write an algorithm to find a number that multiplies your name 10...

write an algorithm to find a number that multiplies your name 10 times

Fuels and lubrication technology, minimum mass of air required for complet...

minimum mass of air required for complete combustionof the HFO

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd