Mining and Minerals Engineering

CSMM114 - Tunnel and Underground Excavation Design (2012)

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MODULE TITLETunnel and Underground Excavation Design CREDIT VALUE30
MODULE CODECSMM114 MODULE CONVENERProf John Coggan (Coordinator)
DURATION: TERM 1 2 3
DURATION: WEEKS 10
Number of Students Taking Module (anticipated) 34
DESCRIPTION - summary of the module content

The module provides knowledge relating to the design of underground excavations. This includes design-related aspects of both tunnelling and underground excavations. Pre-requisites are to have studied CSMM100 or CSMM103. The module is not recommend for the interdisciplinary pathway.

AIMS - intentions of the module

The module provides specialist analysis and design skills associated with the tunnelling, underground mining and related industries.  The module provides problem-solving, data-handling and evaluation skills.  The module also provides an opportunity for students to develop an awareness of risk assessment applied to underground excavation design.

INTENDED LEARNING OUTCOMES (ILOs) (see assessment section below for how ILOs will be assessed)

Module Specific Skills and Knowledge:

1

Assess critically the use of rock engineering for the design underground excavations in the mining, civil, geotechnical, environmental and related industries.

2

Evaluate critically the role and limitations of analytical and computer methods in underground excavation design. 

3

Assess critically the data requirements for the design of underground excavations, including considerations of data variability and risk assessment. 

4

Provide critical analysis and determine appropriate design of underground excavations in varying rock material.

5

Assess critically the use of analytical, empirical and observational design methodologies in specialist geotechnical applications.

6

Choose an appropriate tunnelling technique for varying rock and soil material.

Discipline Specific Skills and Knowledge:

7

Evaluate and apply knowledge to specific design tasks.

8

Create an appropriate design from the critical evaluation of available data.

9

Undertake synthesis of information and create responses in terms of advanced knowledge.

Personal and Key Transferable/ Employment Skills and  Knowledge:

10

Develop personal data-handling skills through critically evaluation of a design problem and produce, to a strict deadline, a report with detailed recommendations / reasoned arguments for an appropriate solution.

11

Utilize a full range of computer-based learning resources as an autonomous learner.

 

SYLLABUS PLAN - summary of the structure and academic content of the module

Week 1            Introduction; Review of data for underground excavation design; Design Methodology; Overview of tunnelling applications

Week 2            Analytical methods for single openings (2D & 3D stress, strain and elasticity solutions); Observational Design/Instrumentation; Soft ground tunnelling methods

Week 3            Kirsch equations; Ellipse equations; Application of rock mass classification (including Laubscher MRMR); Lining design

Week 4            Empirical hangingwall design (including MRMR and Stability Graph); Excavation stabilisation techniques and methods; NATM

Week 5            Pillar design; Support dimensioning; Wedge failure; Use of SWedge; Blasting Regulations and safety

Assignment: Stope design

Week 6            Rock mass  support interaction; Analysis of roof behaviour; Ground treatment

Week 7            Use of UnWedge; Use of RocSupport; Equipment selection

Assignment: Rock mass ֖support interaction

Week 8            Computer based methods (use of Phase2, review of NFOLD, UDEC, FLAC, FracMan/ELFEN); Spoil disposal and management

Week 9            Rock Engineering Systems approach; Review of factors to consider for underground excavation design; Pipejacking; Microtunnelling; Ventilation; Lighting

Assignment: Soft ground tunnelling

Week 10          Case examples

LEARNING AND TEACHING
LEARNING ACTIVITIES AND TEACHING METHODS (given in hours of study time)
Scheduled Learning & Teaching Activities 72.00 Guided Independent Study 228.00 Placement / Study Abroad
DETAILS OF LEARNING ACTIVITIES AND TEACHING METHODS

Category

Hours of study time

Description

Lectures

32 * 2 hrs

 

Tutorials

4 * 2 hrs

 

Private Study

228 hrs

 

Lectures to provide concise notes on theory and application (ILOs 1-6). Example classes to give practice in problem solving (ILOs 1-9). Students must submit three assignments to deadline (ILOs 1-11). Much of the module is supported by material delivered through electronic media

 

ASSESSMENT
FORMATIVE ASSESSMENT - for feedback and development purposes; does not count towards module grade
SUMMATIVE ASSESSMENT (% of credit)
Coursework 50 Written Exams 50 Practical Exams
DETAILS OF SUMMATIVE ASSESSMENT

Form of Assessment

 

% of credit

Size of the assessment  e.g. duration/length

ILOs assessed

Feedback method

Examination

50%

2 hours

ILOs 1-9

Examination Board

Assignment 1 - design-based assignment based on the design of underground excavations in rock, including calculations, data manipulation and graphical presentations.

20%

maximum 1200 words

ILOs 1-4, 7-9

Written feedback on script and cover page of assignment

Assignment 2 - design-based assignment based on the design of underground excavations in rock, including calculations, data manipulation and graphical presentations.

20%

maximum 1200 words

ILOs 1-4, 7-9

Written feedback on script and cover page of assignment

Assignment 3 - is used to assess critical aspects of soft ground tunnelling and is assessed as part of presentation on a particular aspect of tunnelling

10%

Powerpoint presentation (part of group working)

ILOs 5-9

Written feedback on script and cover page of assignment

 

DETAILS OF RE-ASSESSMENT (where required by referral or deferral)

Original form of assessment

Form of re-assessment

ILOs re-assessed

Time scale for re-assessment

Summative Assessment

Additional Summative assignment

Weighting as above

Sept/Oct

Examination

Additional Examination

Weighting as above

Sept/Oct

 

RE-ASSESSMENT NOTES

As above 1 piece of CW 50% and/or 1 Exam 50%

RESOURCES
INDICATIVE LEARNING RESOURCES - The following list is offered as an indication of the type & level of
information that you are expected to consult. Further guidance will be provided by the Module Convener

Basic reading:

 

Brady, B and Brown, E.T. 1993. Rock mechanics for underground mining (2nd edition). Chapman & Hall.    

 

Harrison, J.P. and Hudson J.A. 2000. Engineering Rock Mechanics Part II: Illustrative worked examples. Elsevier.

 

Hoek, E., Kaiser, P.K. and Bawden W.F. 1995.  Design of Support for Underground Hard Rock Mines.  A.A.Balkema. 

 

Hudson JA and Harrison  JP. 1997. Engineering Rock Mechanics - and introduction to the principles. Permagon.   

 

Whittaker, B.N. and Frith, R.C. Tunnelling: design, stability and construction. I.M.M., London, 1990.          

 

<a href="http://www.rockeng.utoronto.ca/roc/Hoek/Hoek.htm" target="_blank">http://www.rockeng.utoronto.ca/roc/Hoek/Hoek.htm</a>  Hoek֒s Corner 

                                             

ELE – College to provide hyperlink to appropriate pages

Reading list for this module:

There are currently no reading list entries found for this module.

CREDIT VALUE 30 ECTS VALUE 15
PRE-REQUISITE MODULES CSMM100
CO-REQUISITE MODULES
NQF LEVEL (FHEQ) M (NQF Level 7) AVAILABLE AS DISTANCE LEARNING No
ORIGIN DATE Monday 12 March 2012 LAST REVISION DATE Wednesday 17 October 2012
KEY WORDS SEARCH Tunnelling, underground excavation design