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 write 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

1.    Describe the local geology (Maori Bay - Muriwai)

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

2.    Represent the defect survey graphically (not in a table)

3.    Estimate stand-up time using the RMR System (showing workings)

4.    Comment on the ease & possible methods of excavation of the tunnel

5.    Identify possible methods for tunnel support (if any is needed) as given by the RMR system

6.    Your report should also contain:

7.    A map showing the location of the site

8.    An estimate of rock material (compressive) strength of the lava flow

9.    An estimate of what the RQD would be in a horizontal bore hole (showing workings)

10. A list of all references used. These must be cited in the report using the APA System

Posted Date: 2/19/2013 5:44:51 AM | Location : United States

Ask an Expert

Related Discussions:- Estimate stand-up time using the rmr system, Assignment Help, Ask Question on Estimate stand-up time using the rmr system, Get Answer, Expert's Help, Estimate stand-up time using the rmr system Discussions

Write discussion on Estimate stand-up time using the rmr system
Your posts are moderated

Write your message here..

Related Questions

Calculate the lower and upper control limits, Question: Data entry cler... Question: Data entry clerks at ARCO key in thousands of insurance records each day.  They have just completed a new training program and want to establish a control chart based

Index numbers, Geometric mean of index number of laspeyres and paasches = 2... Geometric mean of index number of laspeyres and paasches = 229.5468 , while sum of their index number=480 find out laspeyre''s and paasche''s indices.

Expected Value Problems, Ask question #Minimum 1when all factors are taken ... Ask question #Minimum 1when all factors are taken into account, an insurance company estimates that the probability of my father making a claim for damages to his pontoon boat for

Draw a scatter diagram relating cigarette, The following data relating ciga... The following data relating cigarette smoking and death rates for lung cancers in 14 states in the USA. The data are based in part on records concerning 1960 cigarette tax receipts

Compute the data using both Megastats and Excel Data, AA major razor blade ... AA major razor blade manufacturer advertises that its twin-blade disposable razor “gets you lots more shaves” than any single-blade disposable razor on the market. A rival company

Revenue Recognition & Depreciation, Question 2 Pankratov Lakes is a new rec... Question 2 Pankratov Lakes is a new recreational real estate development that consist of 500 Lake front and lake view lots. As a special incentive to the first 100 buyers of lake v

Method of analysis used by the firm, 1. (i) Complaints were made about the ... 1. (i) Complaints were made about the level of pollutants in the discharge from a certain factory.  The factory refuted the complaints by showing the results of their own analysis

Importance of accounting, what are its objectives and limitation? what are its objectives and limitation?

What is bond premium and face value of bond, Defining of bond premium in te... Defining of bond premium in terms of the amount paid over the face value of the bond. And the amount over and above the Face Value of bond which the purchaser pays is called Bond P

Accrual basis in accounting , The foundation sales whereby income are ackno... The foundation sales whereby income are acknowledged when gained and considerable regardless of when collected; and costs are noted on a corresponding basis when suffered. All amaz