ENG09014 2016 Geotechnical Engineering and Drainage Systems Design
Geotechnical Engineering and Drainage Systems Design. The Geotechnical Engineering aspects of this module examine the interpretation of site investigation data, determination of soil parameters for use in design and the development of ground models. The impact of groundwater on the design and the reuseability of materials on site is also examined. Finally, construction methods and the physical practicalities of eartheworks on site are examined.
The drainage element of this module examines the measurement and intrepretation of hydrological data, flood prediction and prevention, sustainable drainage systems (SuDS) methods and drainage designs for road, commerical and housing developments.
On completion of this module the learner will/should be able to;
Construct a ground model and determine suitable design soil parameters based on the analysis and evaluation of site investigation data
Appraise the properties of soil and evaluate their suitability for use in earthworks
Follow good construction practice in earthworks, while recognising the physical constraints on site
Intrepret hydrological data and predict flood events
Design a sustainable drainage system inclusive of pipelines and attenuation devices.
Design a culvert and flood channel using hydrological data.
Teaching and Learning Strategies
This module is delivered by lectures. Learners are required to undertake both individual and group projects to gain further insight into topics.
The drainage element of this module examines the available hydrological data in Ireland and its intrepretation in the design of sustainable drainage systems. The students will be required to carry out a major project which will require the design of a sustainable surface water drainage system, inclusive of attenuation and treatment systems. The regional flood controls and prevention techniques used by the relevant government bodies in Ireland will also be examined.
Module Assessment Strategies
The geotechnical engineering aspects of this module will be assessed using continuous assessment exercises, projects and a final written examination. The drainage systems aspects shall be assessed using projects and final written examination.
The geotechnical engineering aspects of this module are assessed using both individual and group continuous assessment/projects. The sizing the slice method of group assessment (Clelford & Hopkins, 20014) will be used to allocate marks to the individual members of the project group. A copy of this method of allocating marks will be given to the students at the start of the module.
Clelford, T. & Hopkins, A., 2014. Sizing the Slice: Assessing Individual Performance in Group Projects, CEBE Funded Case Study retrieved on 5/12/2014 from http://www-new1.heacademy.ac.uk/cebe/themes/alldisplay?
The drainage element of this module will use project and final examination as a method of assessment of the module learning outcomes.
The learners are required to pass both the continuous assessment and terminal examination elements of this module.
Where a learner or group of learners fail the project element of the module they will be required to resubmit the project again for assessment.
Learners who fail the end of module terminal examination will have the opportunity to resit the examination during the repeat examination session.
- Interpretation of site investigation data.
- Determination of soil parameters for design
- Building a conceptual ground model
- Impact of groundwater on design
- Reusability of material & marginal soils
- Construction methods and the physical practicalities on site
- Rainfall data, rainfall measurement, flood measurement, rainfall hyetographs, soil moisture deficit cathcment geology and geopmetry, runoff hydrographs, synthetic hydrographs, pluvial, fluvial, groundwater flooding. Irish rainfall and hydrological data. Flood prediction methods. Flood Study Update (IRELAND 2013).
- Manning Equation, Fraude Number, open channel design, pipeline design, Hydrological modelling 1-D, 2-D and 3-D using HECRAS, trepezodial, triangular and rectangular channel design.
- Greenfield runoff estimation (various methods) , Wallingford proceedure, flood study update attenuation design.
- Sustainable drainage systems, aquifer pollution and recharge, pretreatment, source control, site control, regional control, accidental spill. CFRAMS, flood maps, major works and minor works flood prevention programme.
- Hydraulic structures, flow measurement, culvert design techniques, throttle pipe design.
- Coastal hydraulics and processes, wave and tidal surge prediction. Coastal structures and protection.
Coursework & Assessment Breakdown
|Title||Type||Form||Percent||Week||Learning Outcomes Assessed|
|1||Geotechnical Engineering projects and assessments||Project||Project||25 %||Any||1,2|
|2||Drainage system project||Project||Project||10 %||End of Term||5|
End of Semester / Year Assessment
|Title||Type||Form||Percent||Week||Learning Outcomes Assessed|
|1||Terminal written examination||Final Exam||Assessment||65 %||End of Semester||1,2,3,4,6|
Online Learning Mode Workload
|Workshop||Not Specified||Workshop||2.4||Once Per Semester||0.16|
|Independent Learning||Not Specified||Self directed learning||7||Weekly||7.00|
IS EN 1997‑2 (2007), Eurocode 7 ‑ Geotechnical Design ‑ Part 1: General Rules.
IS EN 1997‑2 (2007), Eurocode 7 ‑ Geotechnical Design ‑ Part 2: Ground Investigation and Testing.
I.S. EN ISO 22476-1 (2012) Geotechnical investigation and testing - field testing - part 1: electrical cone and piezocone penetration test
I.S. EN ISO 22476-2 (2005). Geotechnical investigation and testing - field testing - part 2: dynamic probing
I.S. EN ISO 22476-3 (2005). Geotechnical investigation and testing - field testing - part 3: standard penetration test, including Amendment 1 2011.
I.S. EN ISO 22476-4 (2012) Geotechnical investigation and testing - field testing - part 4: menard pressuremeter test
I.S. EN ISO 22476-5 (2012) Geotechnical investigation and testing - field testing - part 5: flexible dilatometer test
I.S. EN ISO 22476-7 (2012) Geotechnical investigation and testing - field testing - part 7: borehole jack test
I.S. CEN ISO TS 22476-11 (2005). Geotechnical investigation and testing - field testing - part 11: flat dilatometer test
I.S. EN ISO 22476-12 (2009). Geotechnical investigation and testing - field testing - part 12: mechanical cone penetration test (CPTM)
BS 5930 (2015). Code of practice for ground investigations
BS 6031 (2009). Code of practice for earthworks
BS EN ISO 22475-1 (2006). Geotechnical investigation and testing — Sampling methods and groundwater measurements — Part 1: Technical principles for execution
BS 8002:2015 Code of practice for earth retaining
BS 8004:2015 Code of practice for foundations
BS 8006-1:2010 Code of practice for strength/reinforced soils and other fills
BS 8006-2:2011 Code of practice for strengthened/reinforced soils, soil nail design.
Anon (2016). NRA Design Manual for Roads and Bridges, NRA Standards website/TII Standards.
Anon (2016). NRA Manual of Contract Documents for Roadworks, NRA Standards website/TII Standards.
Knappett, J & Craig, R. F. (2012) Craig's soil mechanics, London : Taylor & Francis
Bowles, J. E. (1995) Foundation analysis and design, New York : McGraw-Hill, 1996. 5th ed.
Anon (2011) Recommendations for design and analysis of earth structures using geosynthetic reinforcements : EBGEO, Berlin : Ernst & Sohn ; German Geotechnical Society
Kempfert, H.G. & Gebreselassie, B. (2006) Excavations and foundations in soft soils, Berlin : Springer-Verlag
Wynn.P,(2014) Hydraulics for Civil Engineers, London, ICE Publishing.
Butler.D, Davis J.W, (2011) Urban Drainage, London, Spoon Press. 3rd Ed.
Elizabeth M. Shaw, Keith J. Beven, Nick A. Chappell, Rob Lamb (2010), Hydrology in Practice, CRC Press, Fourth Edition
Woods-Ballard.B, Kellagher.R, Martin.P, Jefferies.C, Bray.R, Shaffer.P (2006), The SuDS Manual, CIRIA C697. London, British Library Publication.
M. Balkham. R. Haskoning. C. Fosbeary. A. Kitchen. (2010), The Culvert Design and Operation Guide, CIRIA C689. London, British Library Publication.
R.W.P May, (2010), Manual on Scour at Bridges and Other Hydraulic Structures , CIRIA C551. London, British Library Publication.
National Roads Authority (Ireland ) 2014, Drainage Design For National Road Schemes -Sustainable Drainage Options. NRA Publication, Dublin, Ireland.