User Account

All Pages

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

Adders and subtractors, Adders & Subtractors Adder and Subtractor circui...

Adders & Subtractors Adder and Subtractor circuits are used to perform basic calculations in computer systems. Adders, as their name suggests, add binary digits. Since binary

Java , why we need EJB

why we need EJB

Jupiter and saturn, Expertsmind.com  brings you unique solution in Electri...

Expertsmind.com  brings you unique solution in Electrical Engineering -           Jupiter and Saturn are made almost entirely of hydrogen and helium with

Centrifugal flow - compressors in aircraft, Centrifugal flow - Compressors ...

Centrifugal flow - Compressors in Aircraft: The centrifugal impeller is rotated at high speed by the turbine and centrifugal action causes the air between the impeller vanes to

Turbine cooling - aircraft engine, Turbine cooling  Airflow: Figure ill...

Turbine cooling  Airflow: Figure illustrates the turbine cooling airflow of a typical gas turbine engine. The outward flow of cooling air is controlled by air seals of multi-g

Working capital, 5. From the following details you are required to make an ...

5. From the following details you are required to make an assessment of the average amount of working capital requirement of Hindustan Ltd. Particulars Average period of credit E

Fire prevention – bays or zones, Fire prevention – bays or zones: To pr...

Fire prevention – bays or zones: To prevent the spread of a fire within an aircraft/engine nacelle, it is divided up into sections or zones, each being separated by a fireproof

Rays optics , what is ray optics

what is ray optics

.darlington pair, darlington pair assignment

darlington pair assignment

Case study, Which type of financing is appropriate to each firm?

Which type of financing is appropriate to each firm?

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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