Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Civil Engineering Expert

SCENARIO:

It is proposed to construct a 3m diameter, 50m long tunnel, heading 0950, through the andesite lava flow at Maori Bay (Muriwai). As part of the preliminary investigations you have been asked to prepare a report assessing the suitability of the rock mass for this project, & provide an initial indication of rock suitability (including stand-up time) & support that will be required in the tunnel.  
 
Attached is a sheet from a preliminary defect survey carried out on the exposed face of the lava flow.
 
REPORT:
 
A) Describe the local geology (Maori Bay – Muriwai)

  • That is, rock types & structures, etc at and around the site.
  • Find formation & group names from an appropriate geological map or publication.

B) Represent the defect survey graphically (not in a table).
 
C) Estimate stand-up time using the RMR System (showing workings).
 
D) Comment on the ease & possible methods of excavation of the tunnel.
 
E) Identify possible methods for tunnel support (if any is needed) as given by the RMR system.
 
Your report should also contain:

A) A map showing the location of the site.
 
B) An estimate of rock material (compressive) strength of the lava flow.
 
C) An estimate of what the RQD would be in a horizontal bore hole (showing workings).
 
D) A list of all references used. These must be cited in the report using the APA System

E) Report will not be marked past 8 pages including references.

427_defect survey.jpg

Civil Engineering, Engineering

  • Category:- Civil Engineering
  • Reference No.:- M91107

Have any Question? 


Related Questions in Civil Engineering

Crude oil flows through a level section of the alaskan

Crude oil flows through a level section of the Alaskan pipeline at a rate of 1.6 million barrels per day (1 barrel = 42 gallons). The pipe inside diameter is 120 cm, and its roughness has a characteristic dimension of 1. ...

The homogeneous cylinder of weight w and radius r rests in

The homogeneous cylinder of weight W and radius R rests in a groove of width 2b. Determine the smallest force P required to roll the cylinder out of the groove. Assume that there is enough friction to prevent slipping.

A divide-by-2 counter has the following specificationdesign

A divide-by-2 counter has the following specification. Design a divide-by-2 (that is, l-bit) counter using only one D flip-flop. You may also include any combinational logic you wish in your design, butry to minimize the ...

1 what is the meaning of the term structural i how is it

1. What is the meaning of the term STRUCTURAL I? How is it used? 2. What are the veneer grades? Which veneers are the more similar in appearance and surface qualities? Which veneers are structurally more similar? State t ...

1 regarding the overturning of a shearwall describe the

1. Regarding the overturning of a shearwall, describe the possible vertical soil bearing pressure diagrams. Give the formulas that are used to obtain the maximum soil pressure for the two distributions. 2. Refer to Fig. ...

An edge-triggered flip-flop 8lsquo1 has setup and hold

An edge-triggered flip-flop 8‘1 has setup and hold times of t, and th, respectively. The flip-flop 8'2 is constructed by adding a delay of td to the data input of 8'1. (Consider a delay to be a buffer with t pd = t cd = ...

The streetlight a is attached to the end of the horizontal

The streetlight A is attached to the end of the horizontal boom ABO. The light, which weighs 100 N, is subjected to a wind load of 20 N acting in the negative y-direction. The forces P and Q represent the tensions in the ...

Suppose that we have the following three reference patterns

Suppose that we have the following three reference patterns and their targets: The probability of vector p1 is 0.25, the probability of vector p2 is 0.25 and the probability of vector p3 is 0.5. i. Draw the network diagr ...

Manchester encoding can be used to transmit a stream of

Manchester encoding can be used to transmit a stream of bits over a single data wire, with no auxiliary clock information. Each bit is represented by one of the following patterns, where T is the period of the clock used ...

Logic functiona using suitable values for valid logic

Logic function: A. Using suitable values for valid logic levels and noise margins, what logic function does the device with the above transfer characteristic compute? Assume the convention of positive logic. B. What func ...

  • 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