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

Assignmentsuppose a large aerospace engineering firm has

Assignment Suppose a large aerospace engineering firm has immediately hired you as a consultant to investigate a potential violation of corporate policy and data theft. You have been informed that an employee may have be ...

Assignmentan embedded system is any electronic system that

Assignment An embedded system is any electronic system that uses a CPU chip but that is not a general-purpose workstation, desktop, or laptop computer. It is a specialized computer system that is part of a larger system ...

Telecommunications engineering assignmenttopic fixed

Telecommunications engineering assignment Topic: Fixed wireless broadband internet access Introduction 1. Definition 2. How it work 3. Highspeed internet chioces : DSL , 4G wireless call phone internet. Theard point writ ...

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 ...

Smart home patient monitoring system abstractthe increasing

Smart Home Patient Monitoring System Abstract The increasing number elder people and illnesses that require continuous monitoring, along with the demand on hospital rooms and shortage of medical support, home monitoring ...

Crude oil is transported from tank farm in yanbu to the

Crude oil is transported from tank farm in Yanbu to the Power plant of the Electric Company in Rabig by ships. Investigate the feasibiliy of building a pipeline system complete pumping system to transport crude oil from ...

Project security enabled parallel connection for

Project: Security enabled parallel connection for intercom Project objectives The prime objective of the project is to describe how to generate many of the signals and used it to the concern field of communication system ...

Life cycle and risk management assignment 4 a

Life Cycle and Risk Management Assignment 4: A workplace-based report This assessment task involves collaborative team arrangement efforts and designed to explore the key issues of risk management and how these issues ar ...

1 simplify the expressions using boolean algebra and its

1. Simplify the expressions using Boolean algebra and its identities: X'Y + XYZ' + Y' + XZ (Y+Y') = 1 2. The academic director wants to select students in Sydney Study Center to give them Gala Dinner Award. The recipient ...

1 explain the process to convert an analog signal to a

1. Explain the process to convert an analog signal to a digital one. >it done by recording and taking samples of the analogy signals to be digital, the more samples taken within a specific time frame the higher the quali ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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