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

Free hand in measurig trend, advantages and disadvantages of free hand in m... advantages and disadvantages of free hand in measurig trend

Drawing a Diamond Card Question, Find the probability of drawing a diamond ... Find the probability of drawing a diamond card in each of the consecutive draws from a well shuffled pack of cards, if the card drawn is not replaced after the first draw

#13, A survey showed that 80% of the 1600 adult respondents believe in glob... A survey showed that 80% of the 1600 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults believing in global warmi

Sequential sampling, Sequential Sampling: This is somewhat complex sample d... Sequential Sampling: This is somewhat complex sample design where the ultimate size of the sample is not fixed in advance but is determined according to mathematical decisions on t

Explanation of the statistical analyses, Introduction Background inform... Introduction Background information so the reader can better grasp the analyses you are going to present. This can include anything that puts the analyses into perspective for

Random varisble, what is random variable what is random variable

Measurement of central tendency, assignement assignement

Regression, y=c+1075x, when x was 2, and y was 239, given that y intercept ... y=c+1075x, when x was 2, and y was 239, given that y intercept was 11. Calculate the residual

Hypothesis testing, a clinical psychologist claims that on average, at leas... a clinical psychologist claims that on average, at least twenty five clients visit her per week. for a random sample of 8 weeks, the following numbers of clients were recorded; 25

Estimate stand-up time using the rmr system, SCENARIO It is proposed to... 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 investigati