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Table of Contents TABLE OF CONTENTS Welcome from the Chair . 2 Acknowledgements . 3 Sponsors . 5 Exhibitors . 6 Hotel Floor Plans . 10 General Information . 12 Special Events . 13 Technical Tours/Special Activities . 14 Symposium Program . 18 Monday Technical Program . 22 Tuesday Technical Program . 26 Wednesday Technical Program . 30 Invited Plenary Presentations . 33 Abstracts Table of Contents . 38 Abstracts . 40 1 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM Client: Gibson Group – Wayne Gibson Size 5.5 x 8.5h NO bleed Proof # 6 Date: JUNE 14, 2012 Colours: Black/0 Approved: File: 5268 GIBSON ARMA2012 Program INTRO.v2 Line Screen: 150 Fonts: Bliss, Officina Sans W ELCOME On behalf of the Organizing Committee, I would like to welcome you to the 46th US Rock Mechanics/Geomechanics Symposium. We have one of the most successful Symposia to date, with more than 350 papers, five Keynote Speakers, 44 Technical Sessions, two Poster Sessions, two Short Courses, two Worskhops, 15 Exhibitors, three Technical Tours and a large number of exciting Special Activities. The Symposium focuses on new and exciting advances in rock mechanics and geomechanics and encompasses all aspects of rock mechanics, rock engineering and geomechanics. This annual meeting has turned out to be the focal event for the Rock Mechanics and Geomechanics community, bringing together professionals and students from geophysics, civil, geological, mining and petroleum engineering. The Symposium has become truly multidisciplinary providing diverse views for problems that cut across disciplines. Multiple examples can be found in many of the sessions where one topic is of interest to different industries. The Symposium has also become, following a growing trend from past events, multinational, with just over 50% of the papers from countries outside the US. A great Symposium must take place at a great city. Chicago, also called "Paris on the Prairie," is one of the great cities of the world. It is located on the shores of Lake Michigan in the heart of the Midwestern United States. It is home to the world renown Chicago Symphony Orchestra, the Lyric Opera, the unparalleled Art Institute of Chicago museum, major national sports teams, internationally acclaimed jazz and blues festivals, breathtaking architecture, home of the greatest collection of Frank Lloyd Wright creations, award-winning theater, and much more. The Symposium could not have happened without the effort and dedication of many people who worked tirelessly throughout the year. I want to acknowledge the contributions of the Organizing Committee, and also of Kathryn Greco, Hill Montague, Wayne Gibson, and Peter Smeallie. I am very grateful for their assistance and commitment. Thank you for participating in the Symposium, arguably one of the best to date. Let’s enjoy the Conference, learn as much as we can, meet old friends, make new ones, and take advantage of the many things that Chicago has to offer. Antonio Bobet Chair of the 46th US Rock Mechanics/Geomechanics Symposium Professor of Civil Engineering Purdue University 2 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM ACKNOE WL DGEMENTS O rganizing Committee Antonio Bobet Russ Ewy Laura Pyrak-Nolte Symposium Chair Symposium Technical Chair Symposium Technical Chair Purdue University Chevron Energy Technology Co. Purdue University Luc Beauchamp Murali Gadde Marisela Sanchez-Nagel CARMA Liaison Symposium Technical Chair Symposium Poster Awards Mines and Aggregates Safety Peabody Energy Committee Chair and Health Administration Itasca Houston Giovanni Grasselli Steve Brandon University of Toronto Peter Smeallie Lachel & Associates American Rock Mechanics Bezalel Haimson Association Bill Dershowitz University of Wisconsin Ex-officio member Azra Tutuncu Haiying Huang Golder Associates Symposium Technical Chair Symposium Paper Awards Colorado School of Mines Chuck Dowding Committee Chair Technical Tours Chair Georgia Institute of Technology Erik Westman Northwestern University Symposium Technical Chair Joe Labuz Virginia Tech Symposium Technical Chair University of Minnesota Session Chairs/Developers Tony Addis Ali Fakhimi Mary MacLaughlin Anil Ray Anita Ai Erling Fjaer Ali Mese Jean Claude Roegiers Jose Andrade Sergio Fontoura Doug Milne Marisela Sanchez David Beck Murali Gadde Brijes Mishra Doug Schmitt Doug Blankenship Ahmed Ghassemi Sonia Mogilevskaya Sam Spearing Ronaldo Borja Steve Glaser Dan Moos Sergey Stanchits Tom Bratton Giovanni Grasselli Joe Morris Doug Stead Alvin Chan Marte Gutierrez Seiji Nakagawa Roberto Suarez-Rivera Alexander Chudnovsky James Hambleton Maria Nikolinakou Azra Tutuncu John Cook Gang Han Gildardo Osorio Ted Urbancic Brian Crawford Mike Hardy Rimas Pakalnis Jianlin Wang Bill Dershowitz Haiying Huang Euripides Papamichos Shugang Wang Mark Diederichs Takatoshi Ito Greg Pepin Norm Warpinski Tom Doe John Kemeny Lee Petersen Erik Westman Chuck Dowding Paul La Pointe Will Pettitt Sarah Wilson John Dudley Gang Li David Potyondy David Yale Herbert Einstein Yueming Liang Andrey Pyatigorets Hide Yasuhara Derek Elsworth Marc Loken Laura Pyrak-Nolte Wen-lu Zhu Essie Esterhuizen Loren Lorig Mileva Radonjic Mark Zoback P oster Sessions Coordinator Teri Nichols ConocoPhillips 3 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM ACKNOE WL DGEMENTS cont. P aper Awards Committee Haiying Huang John McLennan Marisela Sanchez-Nagel Chair University of Utah Itasca Houston Georgia Institute of Technology P oster Awards Committee Alvin W . Chan Maria-Katerina Nikolinakou Marisela Sanchez-Nagel Shell University of Texas Chair Itasca Houston Brian Crawford Azadeh Riahi ExxonMobil Itasca David J . Scarpato Haley & Aldrich Inc. Teri Nichols Lance A . Roberts ConocoPhillips RESPEC Consulting & Services Karim Zaki Chevron ETC AM R A Board of Directors President Don Banks Mark D . Zoback Vicksburg, MS Stanford University John Curran Vice President Rocscience Antonio Bobet Russell T . Ewy Purdue University Chevron Energy Technology Co. Immediate Past President Michael Hardy Azra N . Tutuncu Agapito Associates, Inc. Colorado School of Mines Mary MacLaughlin Treasurer Montana Tech Bill Dershowitz Golder Associates, Inc. John McLennan University of Utah Secretary Anthony Iannacchione Gangerico Ramos University of Pittsburgh ConocoPhillips Erik Westman Virginia Tech Symposium Staff Peter Smeallie Jim Roberts Executive Director, ARMA Registrar Staff Katy Greco Katharine Smeallie Registrar Registrar Staff Hill Montague, Sr . Symposium Communications 4 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM SONP SORS The 46th U.S. Rock Mechanics/Geomechanics Symposium is sponsored by the American Rock Mechanics Association, a professional society that serves as the direct link in the United States to the professionals, firms, teachers, and students in the fields of rock mechanics and rock engineering. The following companies have generously provided support for the 46h symposium: Agapito Associates, Inc. Sponsor of the 25 June Symposium Luncheon and Keynote Address Chevron, Sponsor of Student Scholarships for Discounted Symposium Registration ConocoPhillips, Sponsor of the 25-26 June Poster Presentations Golder Associates, Inc., Sponsor of the 25-27 Morning Coffee Breaks and the Symposium Program Document Haley & Aldrich, Inc., Sponsor of the 25 June Afternoon Coffee Break Itasca International Inc., Sponsor of the Symposium Delegate Bag MTS Systems Corp., Sponsor of the 24 June MTS Lecture, and Opening Reception MWH Global, Sponsor for Planning and Organizing Two Technical Tours TerraTek TerraTek--A Schlumberger Company, Salt Lake City, Utah Sponsor of the 25 June Future Leaders Luncheon Salt Lake City, Utah Special thanks to Derek Elsworth and Sidney Green for support of the ARMA Fellows activities at the symposium. 5 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM EXHIBITORS E xhibition Schedule Sunday, 24 June 7:00 pm – 9:00 pm Monday, 25 June 9:30 am – 4:00 pm Tuesday, 26 June 9:30 am – 4:00 pm Wednesday, 27 June 9:30 am – 2:00 pm Booth 1 AE G: Association of Environmental and Engineering Geologists PO Box 460518 Denver, CO 80246 www.aegweb.org AEG is the acknowledged international leader in environmental and engineering geology, and is greatly respected for its stewardship of the profession. AEG offers information on environmental and engineering geology useful to practitioners, scientists, students, and the public. Stop by for information on our Annual Meeting in Salt Lake City, 15-21 September 2012. 6 46TH US ROCK MECHANICS/GEOMECHANICS SYMPOSIUM Booth 2 E ngineering Seismology Group 20 Hyperion Court Kingston, Ontario K7K 7G3 Canada www.esg.ca ESG Solutions is a leader in microseismic monitoring solutions for the mining, geotechnical and petroleum industries. Our integrated solutions provide far-field observations of mine seismicity utilized to increase mine safety, improve ground support design and calibrate numerical models to optimize mine design and efficiency. Booth 3 A DAM Technology Suite 3 41 Belmont Avenue Belmont, WA, 6104 Australia www.adamtech.com.au ADAM 3DM Analyst software has been used for open-pit surveying and geotechnical mapping. With the addition of autonomous Unmanned Aerial Vehicles to ADAM’s product range, low-cost and quick- turnaround aerial mapping is now a reality, and 3DM Analyst Underground Mapping Field Kit extends the functionality of the software to underground applications as well. Booths 5 & 6 I tasca Consulting Group 111 Third Avenue South Minneapolis, MN 55401 www.itasca.com Itasca International Inc. is an international engineering consulting and engineering
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