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Soil Stabilization and Underground Shotcrete

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Soil Stabilization and Underground Shotcrete A quarterly publication of the American Shotcrete Association MAGAZINE ShotcreteVolume 13, Number 1 Winter 2011 www.shotcrete.org Soil Stabilization and Underground Shotcrete 2011 ASA Buyers Guide Included Circle #29 on reader response form—page 64 Shotcrete is a quarterly publication of the American Shotcrete Volume 13, Number 1 Association. For information about this publication or about Winter 2011 membership in the American Shotcrete Association, please contact ASA Headquarters at: American Shotcrete Association 38800 Country Club Dr. Farmington Hills, MI 48331 Features Phone: (248) 848-3780 • Fax: (248) 848-3740 E-mail: [email protected] 8 Underground Shotcreting Web site: www.shotcrete.org George D. Yoggy 12 Shotcrete in China’s Longest Tunneling Project Kelly Blickle 16 Wet-Mix for a Traditionally Dry-Mix Application Chuck Pulver The opinions expressed in Shotcrete are those of the authors and do not necessarily represent the position of the editors or 18 Equipment Selection— the American Shotcrete Association. The Key to a Successful Soil Nailing Project Copyright © 2011 Craig McDonald Executive Director Chris Darnell Advertising/Circulation Manager Melissa M. McClain Departments Technical Editors Patrick Bridger, Dan Millette, and Ted Sofis 2 President’s Message — Patrick Bridger Graphic Design Susan K. Esper, Colleen E. Hunt, 4 Staff Editorial — Chris Darnell Ryan M. Jay, Gail L. Tatum 20 Shotcrete Corner — Tara Brown, Patrick Giroux, and Joe Hutter Editing Carl R. Bischof, Karen Czedik, 24 Shotcrete Calendar Kelli R. Slayden, Denise E. Wolber 25 Goin’ Underground — Mike Ballou NEW! Publications Committee Ted W. Sofis (Chair), Michael Ballou, Edward Brennan, Patrick Bridger, 26 Technical Tip — Simon Reny and Marc Jolin Oscar Duckworth, Charles S. Hanskat, Howard L. Robbins, 30 Nozzleman Knowledge — Oscar Duckworth Marc Jolin, Mark Lukkarila, Dan Millette, Dudley R. “Rusty” Morgan, Tom Norman, Ryan Poole, Ray Schallom III, 34 Pool & Recreational Shotcrete Corner — Mark Leone Marcus H. von der Hofen, Lihe (John) Zhang, Chris Zynda 36 Corporate Member Profile — Pool Engineering Inc. 38 ASA New Members ASA OFFicerS President Patrick Bridger 39 Association News Allentown Shotcrete Technology, Inc. 40 Industry News Vice President Joe Hutter King Packaged Materials Co. 44 New Products & Practice Secretary Michael Cotter 46 Sustainability Shotcrete Hydrodemolition Consultant Treasurer Ted W. Sofis 48 Shotcrete FAQs Sofis Company, Inc. 51 2011 ASA Buyers Guide Past President Chris Zynda Joseph J. Albanese, Inc. 62 ASA Membership Benefits ASA cOmmittee chAirS 63 ASA Membership Application Education Committee Ray Schallom III RCS Consulting & Construction Co., Inc. 64 Reader Response Service Safety Committee Chris Zynda 64 Index of Advertisers Joseph J. Albanese, Inc. Marketing & Membership Joe Hutter Committee King Packaged Materials Co. On the cover: Spraying concrete onto excavated ground at high velocity. Photo courtesy of George D. Yoggy. Pool & Recreational Tom Norman Shotcrete Committee Airplaco Equipment Co. Publications Committee Ted W. Sofis Sofis Company, Inc. Sustainability Committee Charles S. Hanskat Concrete Engineering Group, LLC Underground Committee Dan Millette The Euclid Chemical Company Shotcrete—A Proven Process for the New Millennium ASA President's Message Shotcrete conSulting • General contractor Restructuring the with over 30 years of experience • Training in all phases Certification Process of wet/dry shotcrete By Patrick Bridger • Will train in start-up procedures for all shotcrete applications Since ASA was formed, our industry has greatly benefited from the decisions made by ASA’s Board of Direction. Training includes: Consistent with this group has been its strong vision and Estimating leadership. These qualities have been especially evident Bidding over the last 12 months as the Board took on the very Forming technique large task of restructuring how ASA administers the ACI Shotcrete Nozzleman Certification program. Rebar placement In early 2009, the Board became aware of, and began Equipment to examine, some potential shortcomings and industry confusion related to Application ASA’s system for administering certification and education sessions for Certification nozzleman certification. By March 2010, the Board made the decision to develop a plan to restructure the process. The next step was to form an Safety experienced and talented task group to conduct an in-depth review of the then-current process, identify areas for improvement, and develop a detailed plan for moving forward. After many long months of hard work by numerous individuals, a detailed and comprehensive plan was assembled. The finished plan was presented to the full Board at the ASA fall meetings in Pittsburgh, PA, where board members 23565 Morrill Rd voted unanimously to approve the restructuring and its related policies. Los Gatos, CA 95033 There are numerous restructuring goals, but three of the most significant ones are as follows: Phone: (408) 640-6219 • Minimize the administrative work load on Examiners to allow them to be E-mail: [email protected] as objective as possible and to focus specifically on the task of evaluating Web site: www.shotcrete.us participants; • Create a consistent and even playing field for all parties pursuing certi- fication with standardized costs and timelines; and • Create a system of continual evaluation of Examiners and ASA for American Concrete Institute® proactive improvements. Advancing concrete knowledge It is my belief that these goals and many others have been fully addressed by the restructuring. ASA’s process for administering the ACI CERTIFIED EXAMINER Shotcrete Nozzleman Certification program is now significantly more transparent, objective, and consistent. For detailed information on the restructuring changes, visit the Certification section of the ASA Web site at www.shotcrete.org. My thanks to everyone who contributed to this giant step forward for ASA and the shotcrete industry. It continues to be very inspiring to work with a Board of Direction that not only possesses great vision and planning ASA SAFETY but also directly tackles tough topics and simply gets the job done. COMMITTEE CHAIR ASA PAST PRESIDENT Circle #28 on reader response form—page 64 2 Shotcrete • Winter 2011 Circle #5 on reader response form—page 64 Staff Editorial What ASA’s Certification Changes Mean to You By Chris Darnell, ASA Executive Director As mentioned in the President’s Message, on the ASA Web site in the Certification section is a ASA has fundamentally changed how it complete price list for all items that make up a certification/ administers certification and education education session. An individual or organization interested sessions given in support of the ACI in a session will contact ASA staff and communicate Shotcrete Nozzleman Certification program. the details of the session (for example, dry- or wet-mix, Full information on the changes, location, date, number of participants, and full- or half-day including the new policies and forms, Education session), and staff will provide a detailed quote. can be found on the ASA Web site in the The individual or organization pursuing a certification Certification section. I strongly encourage anyone with a session does not decide who will act as the session Examiner. current or potential future interest in nozzleman certification In the past, a list of Examiners was given to interested parties; to spend some time reviewing this information. With that said, and it was up to them to contact an Examiner and coordinate the following areas merit attention due to the significance of all details. Under the new system, the selection of the session the change: Examiner is an internal process overseen by staff. Default costs, timelines, and options for certification/ Under the new system, we are working hard to identify and education sessions are communicated up front. Listed document any relationship between an Examiner and the 4 Shotcrete • Winter 2011 Staff Editorial organization (and its participants). Part of the internal selection We believe that the parties pursuing ACI Nozzleman of an Examiner for a session is determining if a conflict of Certification through ASA will find the new system more interest exists for a potential session Examiner. consistent in its application and much simpler to access, All session coordination efforts and financial understand, and plan for. transactions will occur directly with ASA, not the Examiner. As mentioned in the President’s Message, one of the primary goals of the new system is to relieve the Examiner of forces that might pressure his objec- tivity while also freeing him up The Dan Ryan Expressway, one of the country’s largest and busiest expressways, to specifically focus on evaluating runs through the heart of the city of Chicago and was part of the biggest recon­ candidates pursuing certification. struction plan in Chicago history. This 11­1/2 mile bridge is elevated 60 feet above The program’s prerequisite work numerous local roads, businesses, and railways in Chicago. Shotcrete was used to experience must be documented on successfully complete this project with zero accidents!! ASA work experience forms. The American Concrete Restorations, Inc., received an Outstanding Subcontractor Merit ASA work experience forms require Award from the Illinois Roadbuilder's Association for this project, and the Dan Ryan detailed documentation of work history Expressway was named the 2009 ASA Outstanding Infrastructure Project
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