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

Hot and cold working, the amount of cold working metal can withstand is dir...

the amount of cold working metal can withstand is directly related to which properties? name two and also discuss the effect that cold working has upon these properties?

Shift registers, Shift registers A register is a number of flip-flops a...

Shift registers A register is a number of flip-flops arranged in a circuit used for storing data.  A shift register is one that is designed to move the data along the register.

Finding depreciation and amoritizaton, EBITDA is 7.5 million, Net income is...

EBITDA is 7.5 million, Net income is 1.8, 2.0 million is interest expense, corporate tax is 40%. What is the Depreciation and amortization?.

Cash flow diagrams, Cash Flow Diagrams We will use a cash flow approac...

Cash Flow Diagrams We will use a cash flow approach to analyze the flow of money through out a planning horizon. A cash flow occurs when money actually change hands. We will u

Engineering physics, Consider a conical pendulum with a bob of mass m=80kg ...

Consider a conical pendulum with a bob of mass m=80kg on a string of length L=10 m that makes an angle of 5 deg. with the vertical. Determine the horizontal and vertical component

Engineering Risk and Reliability , The demand placed on a system is describ...

The demand placed on a system is described by a lognormally distributed random variable with mean 50 and standard deviation of 10. The capacity of the system is modeled by a Weibul

Homework, name the functions of the CIPM

name the functions of the CIPM

Enhancement mode mosfet, ENHANCEMENT MODE MOSFET In the enhancement-mod...

ENHANCEMENT MODE MOSFET In the enhancement-mode type, the gate must be forward biased to produce charge carriers in the channel. These devices are normally of and do not condu

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