Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Other Engineering Expert

problem 1)

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. Compute the co-ordinates of the two tangent points for the most cost efficient solution.

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

c. Compute 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.

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

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

Other Engineering, Engineering

  • Category:- Other Engineering
  • Reference No.:- M91344

Have any Question? 


Related Questions in Other Engineering

Assignmentwhy program design is importantanswer the

Assignment Why Program Design is Important? Answer the following questions: 1. What is a program design? 2. Why program design is important? 3. What program design tools are available? Discuss in details by studying at l ...

Microprocessors projectoverviewyou are required to complete

MICROPROCESSORS PROJECT Overview You are required to complete a final project for this course. It requires you to build a fully functional prototype of a standalone gadget which will be an alarm clock and will also displ ...

1 estimate the cycle time and production of a caterpillar

1. Estimate the cycle time and production of a Caterpillar 777D flat floor off highway truck operating on a level haul road of 4000m length. The road is a rutted dirt roadway with no maintenance and no stabilisation, tyr ...

Create the single line diagram of a substation having the

Create the single line diagram of a substation having the following equipments using a drawing software. You can use any drawing software available (e.g. Smartdraw, MS Visio, Microstation, AUTOCAD, Edraw etc.). -Incoming ...

Ac models1the impedance of a capacitor is inversely

AC Models 1. The impedance of a capacitor is inversely proportional to the frequency and the capacitor effectively blocks dc voltage. a. True b. False 2. A coupling capacitor couples an ac signal into an amplifier withou ...

Life cycle and risk management assignment 3 a

Life Cycle and Risk Management Assignment 3: A workplace-based report This assessment task involves collaborative team arrangement efforts and designed to explore engineering asset management as a system incorporating li ...

System administration assignment-aim the aim of this

System Administration Assignment- Aim: The aim of this assignment is to become familiar with subnet masking and designing small networks for fictitious organizations. Task: Imagine you work for a firm which provides syst ...

Power flow project -figure 1 shows a single-line diagram of

Power Flow Project - Figure 1 shows a single-line diagram of a five-bus power system. Input data are given in Tables 1, 2, and 3. As shown in Table 1, bus 1 is the swing bus, to which a generator is connected. Bus 3 is a ...

Assignmentdiscussionanalog integrated circuits amp

Assignment Discussion Analog Integrated Circuits & Lab Op-Amp Application and Datasheets Directions: Please answer BOTH of the questions and respond to a minimum of two of your classmates. Question A Discuss why it is im ...

Robotics assignment-investigation into the control of an

Robotics Assignment- Investigation into the control of an electric motor using MatLab. An electric motor can be described by  the following two coupled second order differential equations, see the PowerPoint notes for a ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen