Calgary Geotechnical Society

Events 2010–2011

Welcome to the 2010–2011 lecture series!

The regular lecture series is held at the Austrian Canadian Cultural Centre at 3112 11th Street NE, Calgary. (See map here).
There is parking available either at the ACC or on-street.
The talks are held either in the upstairs hall or downstairs – doors on the west side of the building.
Lectures are free to attend unless stated otherwise.

Date Tuesday May 31, 2011
EventCalgary and National Reports, CGS Awards & Lecture
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Registration and Cash-Bar
6:00 pm – Welcome and Dinner
6:45 pm – Calgary and National Reports, Presentation of CGS Awards
7:15 pm – Lecture
Speaker Bryan D. Watts, P.Eng., FEIC, Klohn Crippen Berger Ltd.
  Bryan Watts is a 1974 graduate of the Geological Engineering program at UBC. He obtained his Master's Degree in 1981 in Civil Engineering from the University of Alberta. His career in consulting engineering started in 1975 as a site engineer for the construction of the North Starter Dam for the Mildred Lake Tailings Dam at Syncrude. Since then he has worked on design and construction of various tailings and hydroelectric dams in many parts of the world. He was lead consultant on the Bennett Dam sinkhole remediation project in 1996/1997. He is President, Klohn Crippen Berger Ltd., a firm of about 400 people with offices in Canada, South America, and Australia. He is also President of the Canadian Geotechnical Society for 2011/2012.
TopicAncient Landslide Discovered in Chilliwack
Abstract A subdivision was constructed on an ancient landslide in the Eastern Hillsides of Chilliwack in the 1990s. At the time of...
  the construction in the early 1990s it was not recognized that this portion of the Eastern Hillside was a landslide. It is now referred to as the Marble Hill Landslide and is west of the well-known Cheam landslide. Changes to the water balance of the landslide brought about by the subdivision development are believed to have caused a rise in the phreatic surface within the landslide. This, in turn, caused the landslide to slowly displace which damaged many of the houses. The forensic investigation leading to a recommendation to abandon the subdivision and suspend further development will be described.
Sponsor Mobile Augers and Research Ltd.
Cost $40 per person; $15 full-time students
Pay at the door by cash or cheque only; pre-registration is required.
RSVP By email to or phone at 403-863-5849 by Friday May 27, 2011.
Please include your company name, phone number and indicate any dietary restrictions.

Date Thursday April 21, 2011
EventCGS-CSCE Joint Talk
LocationBlackfoot Inn – 5940 Blackfoot Trail SE
Time 5:30 pm – Cocktails & Registration
6:30 pm – Dinner
7:15 pm – Presentation
8:30 pm – Closing Remarks
Speaker Henry Crawford, P.Eng., Thurber Engineering Ltd. and Stephen Bean, P.Eng., Thurber Engineering Ltd.
  Mr. Crawford is a Senior Geotechnical Engineer and Principal with Thurber Engineering in Calgary. Henry has worked on multiple infrastructure projects over his career, including both "conventional" Design-Bid-Build projects, and more recently, Design-Build projects. Mr. Crawford was made a Fellow of the Canadian Society for Civil Engineers in 2005.
Mr. Bean graduated from UBC in 1985 with a degree in Geological Engineering and obtained an M. Eng. from the U of A in 1991. He has been working on many large transportation projects throughout British Columbia including the Kicking Horse Canyon Highway Project, the Vancouver Island Highway Project and the Highway 97 Upgrading Project.
TopicGeotechnical Investigation and Design for Highway Rock Slopes
Abstract Thurber Engineering was part of a Design-Build team for the twinning of a 3.8 km of the Trans-Canada Highway through Banff...
  National Park. The project included a new interchange with the Icefields Parkway (Highway 93), a new bridge over the Bow River, as well as significant rock cuts along the alignment. The first portion of the talk will provide an overview of this project.
The second portion of the talk will present a case history of the large rock slide that occurred on October 23, 2008, during construction of the Highway 97 Bentley Road to Okanagan Lake Park Improvement Project.
Sponsor Thurber Engineering Ltd.
Cost $30 CGS/CSCE member; $15 full-time students; $40 non-members.
Pay at the door by cash or cheque only; pre-registration is required.
Click here for registration
RSVP At least one day prior to the event so we may coordinate with the hotel catering staff.

Date Thursday April 14, 2011
EventCross Canada Lecture Tour (CCLT)
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Registration and Cash Bar
6:00 pm – Welcome and Buffet Dinner
6:45 pm – Lecture
Speaker Mark Diederichs, Ph.D., P.Eng., Professor at Dept. Geological Sciences and Geological Engineering Queen’s University
  Mark Diederichs is a Professor in the Department of Geological Sciences and Geological Engineering at Queen’s University, Kingston, Ontario. He received his BSc and MSc from the University of Toronto in Geological Engineering. He received a PhD in Civil Engineering from the University of Waterloo. He joined Queen’s University in 2001 after working in consulting, as well as in research and development for the Canadian mining industry.
Dr. Diederichs’s research involves the characterization of heterogeneous rockmasses and prediction of their behavior under engineering disturbances such as tunneling, mining, slope construction and cavern construction. In addition, Mark is an expert in the brittle damage and fracture of rock in a tunnelling environment and also consults and leads research in tunnel construction and support issues related to weak rock and squeezing ground. The critical and common element in all of this work is the integration of the geological model with the engineering analysis. Simplifications made in engineering design that fail to account for geological history, geological structure and the natural variability in geo-materials result in the most expensive failures, delays and cost overruns in engineering construction. Failure, on a large tunneling or slope construction project, to model the correct material behavior (squeezing, bursting or structural disintegration) of the individual rock units as well as the composite geosystem (fractures, faults, bedding, folds) can result in major engineering problems during construction.
Dr. Diederichs carries out his research in conjunction with major tunneling projects in Canada, Italy, France, Switzerland, Norway, Sweden and South America. He also acts as an independent reviewer on large complex tunnelling projects around the world. Currently, this expertise is being directed at the challenge of underground nuclear waste storage in Canada and Switzerland. He has authored over 160 published scientific articles and received a number of research awards including the Rocha Medal from the International Society of Rock Mechanics, the Geo-Colloquium Award from the Canadian Geotechnical Society, the John Franklin Award from the Canadian Rock Mechanics Association and recently the Queen's Chancellors Award.
TopicDeep Tunnelling in Hard Brittle Rock
Abstract The deepest tunnel in the world, the Gotthard Base Tunnel, has broken through this past year. The shorter and somewhat...
  shallower Loetchberg was completed several years ago. The largest rock tunnel in the world (Niagara Beck) is nearing completion. The Jing Ping Project in China is struggling through marbles at over 2 km depth. The Olmos tunnel in Peru is dealing with serious bursting under the Andes. Other tunnels are planned or under construction around the world that share key challenges with these world class projects. Namely, they must contend with brittle rock failure processes that lead to safety issues, support challenges and tunnelling delays both in drill-and-blast excavations and tunnels driven by boring machine or TBM.
This talk will take the audience through a number of major tunnelling projects and explore the mechanisms and resulting impacts of this behaviour on the tunnel performance. Key problems include spalling in the walls, spalling in the face, the interaction of spalling processes with joints and fabric within the tight, stressed rockmass, and issues of stress rotation. The currently applied analyses and design tools will be discussed as will the potential of future tools currently under development. The key challenges for numerically simulating and modelling this brittle spalling process, as well as the interaction of this damage with existing structure, will be examined. The ever-present question of dilation (what, how and who cares) will be addressed.
The challenges of support and the solutions developed by the mining and tunnelling industry will be reviewed followed by a discussion of the inherent challenges of providing adequate burst-resistant support in a timely fashion within the constraints of a TBM environment. Examples will be cited and discussed from Switzerland, Italy, South America, Canada and elsewhere.
Organizer Canadian Geotechnical Society
Funding Canadian Foundation for Geotechnique
Sponsors BGC Engineering Inc.
EBA Engineering Consultants Ltd.
Golder Associates Ltd.
Thurber Engineering Ltd.
Cost $40 per person; $15 full-time students
Pay at the door by cash or cheque only; pre-registration is required.
RSVP By email to or phone at 403-863-5849 by Monday April 11, 2011.
Please include your company name, phone number and indicate any dietary restrictions.

Date Thursday March 24, 2011
EventMarch – Regular Lecture Series
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Cash Bar and Light Snacks
6:00 pm – Presentation
Speaker Don Phelps, P.Eng., Hatch Mott Macdonald Inc.
  Don Phelps has 40 years of experience in heavy civil works and has been in the tunnel business for 30 years managing design and construction of highway, rapid transit, and water tunnels in soft ground and rock. He has just returned from two years in Seattle managing the design of the tunnel that he will be speaking about. He is a past Vice-President of the TAC, and started the Alberta TAC chapter. His activities include the Seymour Capilano Twin Tunnels design and resident engineering in North Vancouver; the Port Mann Water Tunnel construction management in Vancouver; Seattle Beacon Hill LRT Tunnels and Station design and resident engineering; and most recently the Alaskan Way Viaduct Replacement Tunnel.
Don is currently the Tunnels Department Head, Vice President and Deputy Practice Lead with Hatch Mott MacDonald, based in Vancouver.
TopicSeattle’s Alaskan Way Viaduct Replacement Tunnel – World’s Largest EPB TBM Tunnel
Abstract The 1950s-era Alaskan Way Viaduct which runs along Seattle's waterfront needs to be replaced due to its seismic vulnerability....
  The proposed project encompasses several phases, in which an existing double-decker bridge will be replaced by a combination of roads and a bored tunnel beneath downtown Seattle. The specification is for a single TBM-bored tunnel to provide four lanes on a double deck carriageway with two 11 ft-wide traffic lanes, a 6 ft shoulder lane and a 2 ft walkway on each deck and with a height clearance of 15 ft above the main traffic lanes to accommodate all types of traffic including sixteen-wheeler freight trucks. That makes for a minimum 54 ft or about 16.5 m tunnel diameter excavated by the largest TBM manufactured to date.
The tunnel will be about 9000 ft or 3 km long, and will operate at between 60 ft to 200 ft (18 m to 60 m) below ground surface. The challenging geological conditions along the tunnel route include mixed glacial deposits of sand, gravel, tills and clays, all of which host a high ground water table. The design-build contract has been awarded to Seattle Tunnel Partners, a joint venture of Dragados USA and Tutor Perini Corp. The team includes several local firms, including Frank Coluccio Construction, Mowat Construction and HNTB Corp. With contingencies and design costs, the tunnel cost is estimated at about $2 billion, of a total $3.1 billion highway-corridor price that includes surface and elevated roads and ramps. Hatch Mott MacDonald is the project's Program Management and Advisory Consultant (PMAC).
RSVPNot Required

Date Wednesday February 23, 2011
EventFebruary – Regular Lecture Series
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Cash Bar and Light Snacks
6:00 pm – Presentation
Speaker Kyle Noble, P.Eng., Stantec Consulting Ltd.
  After graduating with a Bachelors of Science in Civil Engineering from the University of New Brunswick in 2001, Kyle Noble joined the Calgary office of Jacques Whitford Limited. In the fall of 2008, Kyle was seconded to Imperial Oil to work on their Kearl Oil Sands Project. Mr. Noble was a geotechnical advisor and technical reviewer for the Kearl Project. His responsibilities for Kearl included peer review of geotechnical engineering reports and analyses, and client representation for field load test programs. He provided detailed design input and technical review for various aspects of the mining development including for the pile load test program, foundations selection, haul and access road structures, and retaining walls.
From 2009 to 2010, Mr. Noble was the geotechnical lead for foundations during construction at Kearl. Kyle returned to Stantec Consulting Ltd. in 2011 (Stantec acquired Jacques Whitford in 2009).
TopicLessons Learned from Test and Production Programmes for Driven Piles in Sand
Abstract This presentation is an overview of a paper co-authored by Ms. Kimberly Steward of ExxonMobil Development Company. The...
  paper is currently under review for consideration in an ASCE Geo-Institute Geotechnical Special Publication Honouring Bengt H. Fellenius.
The paper outlines an installation and loading test programme conducted for foundation design at an oil sands mine in Alberta, Canada. Design was for approximately 10,000 driven steel piles of various sizes founded in dense glacial deposits of sand and silty sand. Included are results from pre-construction loading tests (9 static axial tests, 56 PDA® measurements) and construction QA/QC (7 static axial tests, 5% of piles with PDA® measurements).
Findings included: a) only 5% piles with d/t ratios greater than 40 had damage when pile shoes were used versus 46% without shoes; b) 83% of piles driven through frost without pre-drill were damaged; c) design curves using a modified API method provided a capacity ratio of 1.0 for dynamic tests during pre-construction versus a range of 0.4 to 0.9 during construction.
Conclusions: a) at a remote site there is more value-added increasing the installation and loading test programme scope versus the subsurface investigation; b) when using an API design approach, extrapolating to diameters and lengths other than those tested led to skewed results; the general trend was over-conservative design for smaller diameter piles and under-conservative design for larger diameter piles as relative depth increased.
RSVPNot Required

Date Tuesday January 25, 2011
EventJanuary – Regular Lecture Series and Wine & Cheese
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Wine & Cheese
6:15 pm – Presentation
Speaker James Sharp, BASc, P.Eng., ConeTec Investigations Ltd.
  Mr. Sharp is a geotechnical engineer and is currently the Canadian Operations Manager at ConeTec Investigations Ltd. He has been heavily involved in soft oil sands tailings investigations for the past 6 years, and possesses 12 years experience conducting and managing specialized geotechnical site investigation programs. Mr. Sharp graduated from Queen's University in 1998.
TopicRecent Advancements in Geotechnical Characterization of Oil Sand Tailings
Abstract The in-situ geotechnical characterization of soft oil sands tailings is now a routine procedure in Alberta, Canada. These...
  generally large tailings impoundments are deposited in either external dammed facilities or within previously mined open pits. When hydraulically discharged, the fines can accumulate as a thick fluid or soft solid material at the center of the deposit while coarse sand beaches form closer to the discharge points.
The large volumes of soft fine grained tailings create challenges for reclamation and are an increasing concern for mine operators, environmental groups, and regulatory agencies. As such, there has been a focus in recent years to adequately characterize these deposits with the end goal of reclamation in mind. New tailings processes developed to improve fines capture and tailings strength are being implemented, and need to be properly characterized in order to evaluate their performance. Investigation techniques used in traditional geotechnical characterization of soils are not adequately sensitive to produce meaningful results in very soft deposits, which can exhibit both fluid and solid behaviour.
Recent improvements of in-situ testing techniques now offer tools specific to very soft deposits. Tools discussed include low capacity cone penetrometers, full flow penetrometers, gamma radiation measurements, high resolution pore pressure dissipation testing, low capacity vane shear testing, and special sampling techniques. Interpretation methods to properly interpret the data are discussed, specifically as it relates to the strength and composition of the various tailings mixtures and physical states. Some recommendations on the best utilization of the various investigation and interpretation methods are made.
RSVPNot Required

Date Wednesday December 8, 2010
Event2010 Jahns Distiguished Lecture
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Registration and Cash Bar
6:00 pm – Welcome and Buffet Dinner
6:45 pm – Jahns Lecture
Speaker William C. Haneberg, Ph.D., Consulting Geologist
  Dr. Haneberg is an independent consulting geologist whose clients have included engineering firms, state and federal environmental and natural resources agencies, mining and logging companies, law firms, and private landowners. Most of his work involves earth movements of one kind or another — landslides, rockslides, debris flows, land subsidence, earth fissures, and other geologic hazards — that occur either naturally or as the result of human activities. He relies on modern tools such as GIS, airborne laser scanning (LiDAR), computer simulations, image processing, and digital photogrammetry to solve practical geologic problems. His field experience includes projects throughout the United States, Papua New Guinea, Nepal, and the Indian Himalaya. If you would like to see some of the places where Dr. Handbag has worked and traveled, you are welcome to visit his photography web pages at
Dr. Haneberg began his consulting practice in the Seattle area but in mid-2009 he moved to Cincinnati, which is one of the most landslide prone cities the United States. He is also an Adjunct Professor of Geology at the University of Cincinnati and a member of the Board of Trustees for The Hillside Trust. Before establishing his consulting practice in 1999, Dr. Haneberg was Assistant Director and Senior Engineering Geologist with the New Mexico Bureau of Mines & Mineral Resources. He has also worked as a petroleum geologist, and taught as an adjunct professor at New Mexico Tech and Portland State University. For a biographical sketch of Dr. Haneberg, please go to
TopicThe Landslide That Ate Laprak
Abstract Located in a remote region of western Nepal and 2 to 3 days walk from the nearest road, the Himalayan village of Laprak is...
  built atop a large landslide that began moving during an exceptionally heavy rainstorm in 1999 and continues to move today. Part travelogue and part technical presentation, this lecture introduces the geologic setting of Laprak and its influence on slope stability, the use of modern technology like digital terrain modeling and finite element simulations to better understand the landslide, the challenges of dealing with geologic hazards in a isolated part of a developing country. It will also explain why things are more interesting when one shows up in the middle of the local festival.
Cost $40 per person; $15 full-time students
Pay at the door by cash or cheque only; pre-registration is required.
RSVP By email to by Monday December 6, 2010.
Please include your company name, phone number and indicate any dietary restrictions.
If you have questions, call Frank at 403-863-5849 or send an email to

Date Tuesday November 16, 2010
EventNovember – Regular Lecture Series
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Cash Bar
6:00 pm – Lecture
Speaker Chuck Slack, P.Eng., Associate, Senior Project Manager, Klohn Crippen Berger Ltd.
  Chuck was born in Brandon, Manitoba, moved to Saskatchewan as a teenager and graduated with a Bachelor of Science in Civil Engineering from the University of Saskatchewan in 1987. His water resource/civil engineering career started with Prairie Farm Rehabilitation Administration (PFRA) where he worked as a summer student in high school and university (1980 to 1987).
After graduation, Chuck worked at PFRA till 1988 after which he moved to Calgary to work with the water resource, civil engineering consulting firm, W-E-R Engineering Ltd. W-E-R Engineering Ltd. joined AGRA Earth & Environmental in 1991. In 1999, he formed Mack, Slack & Associates Inc. where he was Vice President and Principal Engineer. In 2007, Mack, Slack & Associates joined Klohn Crippen Berger Ltd. (KCB). Chuck is an Associate and Senior Project Manager with KCB with over 24 years experience in a variety of surface water engineering projects.
His specific experience includes river engineering, hydrology, irrigation, drainage, dams and reservoirs, mine water management, floodplain studies, environmental impact assessments, structural and earthworks design, construction specifications, construction contract administration, and construction supervision and management. He is the Project Manager for the design and construction of the Calgary Bow River Weir Project. His hobbies include golfing, music, tennis, football, and camping.
TopicCalgary Bow River Weir Project
Abstract The Calgary Weir is part of the Western Headworks system situated on the Bow River just 3 km east of downtown Calgary. The...
  headworks system, including the headgate, sluiceway, weir, and fishway structures, were constructed in 1975 by PFRA, and are used to supply water to the Western Irrigation District. The 152 m long ogee weir represents the only barrier to boaters and fish passage within the 100 km long reach of the Bow River between Bearspaw Dam and the Carseland-Bow River Headworks. The weir also created an extreme drowning hazard that has claimed several lives over the years.
The primary objectives of the Calgary Bow River Weir Project are to enable river passage for non-motorized boats and enhance fish passage while maintaining its water supply function. The main features of the project consist of constructing a low water channel for novice boaters and a high water channel for more experienced boaters. A divide island will separate the two channels. Within each channel, a series of boulder drop structures and pools will be incorporated to create the desired flow conditions. Modifications to the weir will include incorporating slots at specific locations for boat and fish passage, and adding a concrete infill to change the ogee profile to create the desired flow conditions. Construction of the project is underway and is scheduled to be completed by May 2011.
The presentation provides an overview of the hydraulic, hydrogeologic, geotechnical, earthworks, and structural design and provides an overview of the construction and commissioning activities that have been completed to date.
RSVPNot Required

Date Thursday October 28, 2010
EventFall 2010 CCLT
LocationAustrian Canadian Cultural Centre
Time 5:30 pm – Registration and Cash Bar
6:00 pm – Welcome and Dinner
6:45 pm – CCLT Lecture
Speaker Sarah Springman, Ph.D., Professor and Head of Geotechnics Group at ETH Zurich
  Dr. Sarah Springman is currently a Professor and Head of Geotechnics Group at Swiss Federal Institute of Technology (ETH, Zurich). After the Engineering Sciences Tripos at Cambridge, Dr. Springman began her professional civil engineering career working in industry for Sir Alexander Gibb and Partners in Australia & Reading and onsite in the jungle in Fiji (to build an 85 m high rockfill dam). She returned to Cambridge for 13 years to earn an MPhil/PhD, becoming a research fellow at Magdalene College and a University Lecturer/Fellow. She left for an initially untenured chair at the ETH Zurich in 1997 as she earned tenure in Cambridge! Learning German and a different culture worked, and today she is still in Zurich, with an active research and teaching group and far too much time spent on national and international committees. Her research is focused on soil structure interaction and the geotechnical aspects of natural hazards. She has pioneered multi-threaded learning in higher education in Geotechnics in the German speaking world. She is a chartered engineer and recently became a Fellow of both the Institution of Civil Engineers and of the Royal Academy of Engineering. More details about Dr. Spingman can be found in here.
TopicThe Rüdlingen Landslide Experiment
Abstract A large scale field experiment was conducted on a steep 38° forested slope with preliminary field monitoring of sensors...
  installed at depths from 15 to 150 cm, including tensiometers, TDRs, piezometers, rain gauges, pressure cells, acoustic sensors and deformation probes, prior to triggering a landslide by means of artificial rainfall. The project was designed to enhance the understanding of triggering processes and initiation mechanisms by replicating the effects of a heavy rainfall event in May 2002, in which 100 mm rain fell in 40 minutes, causing 42 surficial landslides. Geotechnical and hydrological characterization were carried out on the overlying colluvial silty sand, with bedrock at depths between 0.5 m and 5 m. Percolation of groundwater into the underlying bedrock was observed from test pits. Remote sensing of displacements was also carried out continually during the field experiments, through a photogrammetric monitoring system. It was deduced that the slope would fail during an extreme rainfall experiment that would lead to saturation of the soil overlying the bedrock. The failure mechanism was more or less as predicted, with vegetation reinforcement playing a role. Triggering occurred earlier than expected in March 2009, incorporating about 150 m3 of debris, which was safely retained in a protection net at the base of the slope.
Sponsors BGC Engineering Inc.
LVM Group Inc.
Reinforced Earth Company Ltd.
Thurber Engineering Ltd.
Cost $40 per person; $15 full-time students
Pay at the door by cash or cheque only; pre-registration is required.
RSVP By email to by Tuesday October 26, 2010.
Please include your company name, phone number and indicate any dietary restrictions.
If you have questions, call Frank at 403-863-5849 or send an email to

Date Tuesday August 10, 2010 – CANCELLED
Event2010 Darcy Lecture
LocationThe Southern Alberta Pioneer Memorial Building – 3625, 4th Street S.W., Calgary
Time 5:30 pm – Cocktails
6:15 pm – BBQ Dinner Buffet
7:00 pm – Darcy Lecture
Speaker Timothy Scheibe, Ph.D., Pacific Northwest National Laboratory
  The 2010 Henry Darcy Distinguished Lecturer, Timothy (Tim) D. Scheibe, Ph.D., joined Pacific Northwest National Laboratory in September 1992 and is currently a staff scientist in the Hydrology Technical Group. He received his bachelor's degree in geological engineering from Washington State University, a master's in civil engineering from the University of Washington, and a Ph.D. in civil engineering from Stanford University. At PNNL, he has been responsible for proposal development, project management, and technical contributions in a number of different areas of environmental research and technology development broadly related to the hydrologic sciences.
His primary research focus is on characterization and numerical simulation of natural subsurface heterogeneity, and its impacts on biogeochemically reactive transport in groundwater systems. His research projects include both computational and field experimental elements. Recently, he has worked on problems in the area of subsurface biogeochemistry, including microbial transport in groundwater, and bioremediation of metals and radionuclides. He is currently collaborating with computational scientists and applied mathematicians to simulate coupled flow, transport, and biogeochemical processes at cellular, pore, and continuum scales. His research is supported primarily by the Department of Energy's Office of Science through the Environmental Remediation Science Program and the Scientific Discovery through Advanced Computing Program.
Scheibe is a member of NGWA. He has served on the editorial board of the NGWA journal Ground Water® since 2001 and is active in the American Geophysical Union, in which he currently represents the Hydrology Section on the Joint Assembly Program Committee.
Topic Quantifying Flow and Reactive Transport in the Heterogeneous Subsurface Environment: From Pores to Porous Media and Facies to Aquifers
Abstract Hydrogeologists working on problems related to groundwater contamination, remediation, or water quality protection face an...
  extraordinary challenge. The fundamental transport and reaction processes that control contaminant fate occur at length scales that are many orders of magnitude smaller than the scales at which predictions of observable phenomena are needed. Spatial variability (heterogeneity) of physical and biogeochemical properties exists across the entire range of relevant scales.
In this presentation, we will take a numerical journey through this range of length scales. Along the way, we will examine a number of case studies that illustrate both the challenges posed and some exciting ways that advanced computational methods are being brought to bear on these problems. We will start by examining pore-scale simulations of flow, transport, and reactions in porous media, in which the complex geometry of solid grains and pore spaces is explicitly quantified. Pore-scale models are being used to develop new understanding of fundamental processes that can be incorporated into larger-scale models that treat porous media as effective continua.
We will consider the applicability of two approaches: (1) direct upscaling of pore-scale simulation results using various methods, and (2) multiscale hybrid modeling, in which pore- and continuum-scale models are combined within a single simulation. At the continuum scale, complex geological heterogeneity is expressed at a multitude of scales. For example, in sedimentary aquifers one may observe sediment architectural elements such as lamination (typically millimeter scale), cross-bedding (typically centimeter scale), and larger units such as beds, bed sets, facies, formations, aquifers, and aquitards. We will examine the representation of geologic heterogeneity in reactive transport models, with a focus on the effects of correlated physical and biogeochemical heterogeneity. These issues will be presented in the context of a number of field sites relevant to U.S. Department of Energy contamination problems, including a bacterial transport site, a uranium bioremediation site, and a site with persistent uranium contamination associated with diffusion-controlled mass transfer processes.
Organizers Calgary Geotechnical Society
International Association of Hydrogeologists
Sponsor Mobile Augers & Research Ltd.
Cost $40 per person; $15 full-time students
Pay at the door by cash or cheque only; pre-registration is required.
RSVP By email to by Friday August 6, 2010.
Please include your company name, phone number and indicate any dietary restrictions.
If you have questions, call Frank at 403-863-5849 or send an email to