User Account

All Pages

Mine Surveying.., Other Engineering

Assignment Help:
Question 1 (100 marks)
As Surveyor in charge of an underground mine you have been instructed to design a tunnel to join a crosscut to a haulage drive. The details of the crosscut and drive are shown below.
Crosscut - Bearing: 71°06''25”
Grade: 1:70
Last Survey Station: 5417.744 E
2448.954 N
1099.439 RL Floor


Haulage drive - Bearing: 312°33''10”
Grade: -1:100
Last Survey Station: 5594.088 E
2384.402 N
1152.447 RL Floor

The face of the crosscut is 80m ahead of the last station. Both the crosscut and haulage drive
are 5m wide and 4m high.
The tunnel is to have a circular horizontal alignment turning right from the crosscut with aradius of not more than 50m and not less that 30m with a maximum grade of 1 in 10.

a. Calculate the co-ordinates of the two tangent points for the most cost effective solution.
(40)

b. Plot the crosscut and drives at suitable scale showing all relevant information. Show the proposed walls as dashed lines on the plan. (10)

c. Calculate the co-ordinates of a point (Stn 425) that is 5m along the centreline of the tunnel from the TP in the crosscut (TP1). Check your calculations using the plan. (5)

d. From this point a chord line bearing 88°43’ is to be set out. At 2m intervals calculate the centreline offsets from this line and reduced levels of the floor. (40)

e. At what chainage from Stn 425 should mining cease and why? (5)



I''m wondering I got an assignment that due date tomorrow and it contains 5 questions and i solve all of them except the first one, so if able to solve it just let me know

Related Discussions:- Mine Surveying..

Working of Voltage Divider Bias, Explain the Working of Voltage Divider Bia...

Explain the Working of Voltage Divider Bias?

Identify fire hazards - fire risk assessment , Identify fire hazards: ...

Identify fire hazards: In this part, the process appears to be concentrating on issues that can lead to fire but we have to remember to also consider the presence of a fire wi

Servicing of chemical de-icing systems, SERVICING OF CHEMICAL DE-ICING SYST...

SERVICING OF CHEMICAL DE-ICING SYSTEMS: It is essential for the correct operation of the ice protection system that servicing is carried out on a regular basis.  The fluids use

Auto cad, Do you provide help with Autocad assignments?

Do you provide help with Autocad assignments?

Difference amplifier, Difference amplifier: Figure shows how two inputs...

Difference amplifier: Figure shows how two inputs can be subtracted. This circuit differs from previous types with negative feedback in that the non-inverting terminal is not

Blow hole and pin hole porosity, Difference between   Blow hole and pin hol...

Difference between   Blow hole and pin hole porosity          Blow hole : They appear as cavities in a casting. When they are visible on the upper surface of the castings, th

Matlab, load flow analysis by fast decoupled method

load flow analysis by fast decoupled method

Derivative Securities, Let C(K) denote a European vanilla Call option with ...

Let C(K) denote a European vanilla Call option with strike price K. Assume that all options are identical except for strike price, and strike prices satisfy (K1) What are the no-

Applications of De, What are the applications of de.moivres theorem in soft...

What are the applications of de.moivres theorem in software engineering,computer science,programming and computer engineering? if there are any applications,then,what are that?

Subtraction of two 16-bit numbers, write a programme of subtraction of two ...

write a programme of subtraction of two 16 bit numbers

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