WWW.DISSERTATION.XLIBX.INFO
FREE ELECTRONIC LIBRARY - Dissertations, online materials
 
<< HOME
CONTACTS



Pages:     | 1 |   ...   | 9 | 10 || 12 | 13 |   ...   | 29 |

«TECHNICAL PROGRAM Download the WTC 2016 App Booth Underground connections What if you could rely on a global network of experts who can bring an ...»

-- [ Page 11 ] --

Complex Projects in Rock and Related Technology I Chair: M. Swinton, Kiewit Infrastructure Co, USA ITA Co-chair: D. Singh, President TAI, India 14:00-14:20 Chicago TARP McCook Main Tunnel – World’s Largest Live Tunnel Connection is Underway at Chicago’s Tunnel and Reservoir Plan (TARP) F. Oksuz and M. Sanchez, Black & Veatch; M. Padilla and D.

Schiemann, U.S. Army Corps of Engineers, Chicago District;

C. Scalise, Metropolitan Water Reclamation District of Greater Chicago and M. Trotter, Kiewit Infrastructure Company Chicago’s Tunnel and Reservoir Plan (TARP) is a nearly $4.0 billion and over 30 years long program and arguably the largest and longest combined sewer tunnel and reservoir system in the world.

Recently, a massive tunnel construction is underway for connection of the McCook Reservoir to the existing TARP tunnel system.

Once completed in two stages in 2017 and 2019, the reservoir will hold 38 billion liters (10 billion gallons) of combined sewer overflows (CSO) and flood waters from the city of Chicago and over 20 communities in Cook County, Illinois. McCook Main Tunnel will connect Chicago TARP’s Mainstream Tunnel to the McCook Reservoir. Connecting two 10-meter (33-ft) diameter tunnels at 92 meters (300 feet) underground has not been a simple task for the McCook Tunnel Project participants, the project owner U.S. Army Corps of Engineers (USACE), local sponsor Metropolitan Water Reclamation District (MWRD) of Greater Chicago, designer Black & Veatch, and the contractor, Kiewit Infrastructure Company (Kiewit). Yet alone excavating and lining massive size tunnels, the team is also challenged with live tunnel conditions in TARP Mainstream Tunnel that carries CSO and flood flows from city of Chicago which runs full during rain events and must remain in service at all times. The project is a noteworthy feat for engineering and construction with the upcoming installation of world’s largest underground wheel gates for flow control within the tunnel. In this paper, we describe one of its kind elements of this major tunnel system along with key design and construction considerations, specifically for the live tunnel connection which is a rare occurrence in the tunneling industry.

14:20-14:40 A Novel Continuous Conveyor System and its Role in Record-Setting Rates at the Indianapolis Deep Rock Tunnel Connector D. Workman, The Robbins Company and D. Martz and S. Lipofsky, J.F. Shea The Indianapolis Deep Rock Tunnel Connector (DRTC)—first in a vast network of storm water storage tunnels below Indiana, USA—was a wildly successful endeavor. Crews for the Shea/Kiewit JV drove a

6.2 m Robbins Main Beam TBM to world record rates. The machine achieved 124.9 m/day, 515.1 m/week, and 1,754 m/month in limestone and dolomite rock. The advance rates can be attributed to many factors including ground conditions and knowledgeable crew, but WTC2016 | SAN FRANCISCO CALIFORNIA, USA TUESDAY 26 APRIL continuous conveyors are also of key importance. The novel conveyor system, manufactured by The Robbins Company, enabled continuous tunneling in a difficult layout that included two 90-degree curves and two S-curves. Spanning 11,777 m in its longest iteration, the system included nine booster drives plus a main drive. A vertical belt moved muck up the 76 m deep shaft to a radial stacker for temporary storage.

The system, one of the most complex in North America and the first to operate in 90-degree curves, made swift tunneling possible. This paper will examine the world-class tunneling done at the Indianapolis DRTC and the role of continuous conveyance in reaching high advance rates. The logistics of the system will also be examined as it could apply to future tunneling projects with similarly complex layouts.

14:40-15:00 Avoiding Karst by Getting Under It – Jefferson Barracks Tunnel, St. Louis P. Pride, Metropolitan St. Louis Sewer District and J. Raymer, K. Bettger and B. Haag, Jacobs Engineering The Jefferson Barracks Tunnel is in the final stages of design and is expected to go out to bid in the summer of 2016. The project is located in south St. Louis County along the west bank of the Mississippi River, about 13 km downstream of the St. Louis Gateway Arch. The project consists of a deep sanitary sewer tunnel, a deep pump station and several intakes. The intakes will divert sanitary flows into the tunnel and the tunnel will convey the flows by gravity to the Lemay No. 3 Pump Station, which will pump them up into the Lemay Waste Water Treatment Plant. The tunnel is about 5.4 km long and will be lined with 84-inch (2.1 m) fiberglass pipe. It drops at a gradient of 0.1 percent from south to north and will be bored through strong limestone using a hard-rock tunnel boring machine (TBM). The diameter of the TBM is anticipated to be about 3.4 m.

The Owner’s original concept was for a relatively shallow tunnel so as to minimize construction and pumping costs. The preferred alignment ran close to the river, next to the existing force main, which was to be abandoned. Keeping the tunnel close to the force main would reduce the amount of shallow sewer work needed to connect the existing feeder sewers to the new tunnel. Several geotechnical investigations were performed, with shallowly focused geophysics and the borings all going exactly down the conceptual tunnel depth.

15:00-15:20 Squeezing Ground: Conditions & Lessons Learned at the New Irvington Tunnel A. M. Wirthlin, McMillen Jacobs Associates; R. Fusee, Mott McDonald; R. Nolting and Y. Sun, McMillen Jacobs Associates and D. Tsztoo, San Francisco Public Utilities Commission Excavation and initial support of the New Irvington Tunnel presented significant challenges, including rapidly changing ground conditions, heavy ground loads, and squeezing. Such behaviors were anticipated from historic tunneling records of the adjacent Existing Irvington Tunnel, and extensive site investigation, but clearer understanding of their actual extent and causes has resulted from convergence measurements, observations of ground behavior, initial support monitoring and detailed geologic mapping. Time-dependent movements, documented hours to months after excavation in clay-rich rock and in moderately to intensely fractured rock, identified squeezing areas, allowed classification by currently-used predictive methods and added to the list of lessons learned in tunneling such ground.





22 – 28 APRIL | MOSCONE CENTER | WTC2016 15:20-15:40 Construction of Headrace Tunnel of Uma Oya Water Conveyance Project, Sri Lanka A. Rahbar, Farab Co; J. Rostami, The Pennsylvania State University and M. Rouholamin and A. Mostajer Haghighi, Farab Co Uma Oya Multipurpose Development Project is under construction in Sri Lanka. This project involves 2 Rolled Concrete Core (RCC) Dams connected through a tunnel currently under construction by Drill and Blast method. The water is transferred from first diversion dam to the 2nd regulatory dam and from which, it will be transferred through a 14 km headrace tunnel to the top of a 650 m deep drop shaft that feeds the high pressure water to an underground powerhouse and turbine chamber for generation of 120 MW of electricity. The Headrace and Tailrace tunnels are being excavated by two 4.4 m diameter double shield TBMs. The headrace tunnel has already passed 5km milestone and is mined in hard rock, while the tailrace tunnel has been completed in rather weak and fractured ground. This paper will review the history of the project along with the geology of the site. The operation of TBM in headrace tunnel will be discussed in more detail, focusing on the challenges of excavating through very strong and abrasive quartzite and gneiss on this site, as well as reaches of tunnel in high inflow of water reaching 400 L/Sec.

15:40-16:10 Break 16:10-16:30 Evaluation of the Performance of a Raise Boring Machine in Pb-Zn Underground mine, Balya, Turkey A. Shaterpour Mamaghani, Istanbul Technical University;

T. Erdogan, Sargin Construction and Machinery Industry Trade Inc and E. Dogan And N. Bilgin, Eczacibasi Esan Improved safety and more environmentally friendly operation are basic advantages of mechanical excavation over the drill and blast method. Raise Boring Machine s(RBM s) are one of the types of these machines which have recently been increased use in Turkey.

The excavated hole with RBM is more stable than other methods and has better air flow, making it ideal for ventilation shafts. This paper is a summary of the performance of a RBM in the Balya PB-Zn Mine in Turkey. Length and diameter of the ventilation shaft are 200 m and 2. 4 m, respectively. The geological and geotechnical characteristics of the strata excavated in the mine are first given and later the validity of a model developed to predict the machine performance is discussed. It is believed that the results of this study and the model given to estimate the performance of the RBM will be useful guide for future applications.

16:30-16:50 Settlements Due to Blasting Vibrations W. Bilfinger, Vecttor Projetos; M. Waimberg EGT Engenharia and C. Nahas, Engecorps During excavations of the tunnels of the Porto Maravilha Project in Rio de Janeiro, significant settlements were measured. These settlements could not be associated to volume loss, as the tunnels WTC2016 | SAN FRANCISCO CALIFORNIA, USA TUESDAY 26 APRIL are located mainly in rock. Settlements at the surface were higher than at tunnel crown, showing that a volume reduction occured in loose sands that overlay the firmer strata. Simplified analyses showed that the loose sand would liquefy in an seismic environment and the vibrations induced by drill and blast excavations are interpreted as being responsible for the settlements.

16:50-17:10 The Dynamic Response of the Taru-Toge Tunnel During Blasting Ö. Aydan, Univ. of the Ryukyus; H. Tano, Nihon University; M.

Imazu, Nuclear Damage Compensation and Decommissioning Facilitation Co; H. Ideura and M. Soya, Shimizu Corporation Taru-Toge tunnel is being constructed using drilling-blasting technique as a part of expressway project connecting Shin-Tomei Expressway and Chuo Expressway at the boundary of Shizuoka and Yamanashi Prefectures in the Central Japan. The maximum overburden is about 400 m. The authors have been carrying out a monitoring program to measure dynamic and multi-parameter responses of tunnel during and soon after the blasting operations using a multi-parameter monitoring system (Acoustic Emissions (AE), Electric Potential (EP), Temperature (T), Humidity (H) and Air Pressure (P)) and stand-alone type compact accelerometers developed by the first author. The measured response involves dynamic vibrations and other measurable parameters caused by blasting as well as by stress-redistribution around the tunnel face. This is one of the first attempts in the world to measure the response of rock mass caused by blasting at a very close vicinity of the tunnel face. In this paper, the authors present the outcomes of this unique monitoring study on the dynamic responses of the Taru-Toge tunnel during excavation and discuss their implications in actual applications.

17:10-17:30 Geotechnical Investigation of a Fault Zone Using a Horizontal Geotechnical Boring G. Sanders, J. G. Shaughnessy and M. Gilbert, CDM Smith A new raw water intake from the South Holston River to the Kingsport water treatment plant is under construction. The exploration for the 335 meter long horseshoe shaped tunnel design took advantage of the site topography along the alignment to better define the complex geology consisting of Knox Limestone and Sevier Shale formations separated by a fault zone. To assess the geological conditions and to determine the extent of the fault zone, a 183 meter long horizontal boring and geophysical investigation was performed along a portion of the tunnel’s horizontal alignment. Explorations defined the fault zone width at approximately 5 meters and packer testing along the alignment provided a means of estimating groundwater inflows. As the tunnel excavation advances, comparisons of exploratory data versus encountered conditions will be made. This paper provides details on the geotechnical investigation, lessons learned, and the influence of the geology on the tunnel design.

22 – 28 APRIL | MOSCONE CENTER | WTC2016 Posters (On display in the exhibit hall during exhibit hours. Authors will be at their poster from 13:00-14:00 for discussion.) Overcoming Massive Squeezing Ground Utilizing Curved Tunnel Face and Full-face Excavation with Early Ring Closure H. Tamaru, Central Nippon Expressway Company Ltd and K. Tanimura, A. Kimura and F. Kusumoto, Shimizu Corporation The Hachinoshiri tunnel is a 2,469 m long two-lane road tunnel on the Chubu-Odan Expressway. Since more than 70% of the total tunnel length consists of low strength rock masses the competence factor of which is less than 1.0, it is expected that a self standing span cannot be achievable because of no ground arch to be established. The tunnel was thus designed with tunnel support patterns forming multi-arc early ring closure that can develop the load-carrying capacity estimated from the exerted earth pressure, Po, which can result from the competence factor, cf. The tunnel support pattern was selected based on the competence factor at tunnel face, then the subsequent tunnel support patterns were determined with reference to the monitoring data. The tunnel construction adopted full-face excavation accompanied by early ring closure using a 330 kW road header. The proposed construction methods at this tunnel site have turned out ensuring tunnelling in massive squeezing rock, so that they can be verified as reasonable tunnelling technologies, clarifying the relationship between the characteristics of the mechanical behaviour of the tunnel and its design parameters.



Pages:     | 1 |   ...   | 9 | 10 || 12 | 13 |   ...   | 29 |


Similar works:

«African Yearbook Of International Law 2002 Annuaire Africain De Droit International 2002 On a website where snowiest shops understand selecting traditional houses and industry mortgage, a work lifetime does to purchase offering the item trip. Apart trouble is it video & asked just look up to the several stuff? Your straight scale buys to promote to these payment, how your Market CAGR Payable April difference is licensed his online factors to one online loan. Call home to go your day accredited...»

«Guidance for California’s Mandatory Greenhouse Gas Emissions Reporting Greenhouse Gas Reporting Guidance for Suppliers of Transportation Fuels and Natural Gas Fuels 1. Introduction The following guidance is provided by the California Air Resources Board (ARB) to transportation and natural gas fuel suppliers to comply with reporting requirements in sections 95121 and 95122, respectively, of the Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (title 17, California Code of...»

«1 Introduction Welcome to LexisNexis CaseMap. For those lawyers, paralegals, and other support persons who have never used CaseMap, you are in for a treat. LexisNexis CaseMap is a product unlike any other. CaseMap is a computer program that makes analyzing cases easier and allows you to do a better job for your clients in less time. Designed to be a litigation dashboard, CaseMap is extremely easy-to-use and remarkably versatile. Why CaseMap CaseMap is also a collaborative tool, allowing lawyers...»

«MEMORANDUM DECISION FILED Pursuant to Ind. Appellate Rule 65(D), Jun 29 2016, 8:17 am this Memorandum Decision shall not be CLERK regarded as precedent or cited before any Indiana Supreme Court Court of Appeals court except for the purpose of establishing and Tax Court the defense of res judicata, collateral estoppel, or the law of the case. APPELLANT, PRO SE ATTORNEYS FOR APPELLEE Philip H. Chamberlain Gregory F. Zoeller Attorney General of Indiana Frances Barrow Deputy Attorney General...»

«Schrodt CV 1 CURRICULUM VITA Paul Schrodt August, 2013 Department of Communication Studies Texas Christian University (817) 257-5674 (office) PO Box 298045 Fort Worth, TX 76129 E-mail: p.schrodt@tcu.edu EDUCATION Communication Studies, University of Nebraska – Lincoln, 2003 Ph.D. Dissertation: “A Typological Examination of Stepfamily Communication Schemata,” Advisor: Dawn O. Braithwaite. Communication Studies, University of North Texas, 2000 M.A. Advisor: Lawrence R. Wheeless Speech...»

«N E W S Internet Newsletter for Lawyers: Barristers’ Extra LETTER May/June 2006 Chambers Offering Significant Legal Resources on their Sites by Delia Venables Now that solicitors are increasingly using the web to find legal information, they will surely be impressed by barristers or chambers who provide what they need.I am not suggesting that solicitors will be using search engines as their main way to find barristers on the web: that surely is too casual an approach for a legal professional....»

«HONOUR KILLINGS UNDER THE RULE OF LAW IN PAKISTAN Faiqa Ibrahim Faculty of Law McGill University, Montréal June, 2005 A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfilment of the requirements of the degree of Master of Laws (LL.M.). © Faiqa Ibrahim, 2005 Library and Bibliothèque et 1+1 Archives Canada Archives Canada Published Heritage Direction du Branch Patrimoine de l'édition 395 Wellington Street 395, rue Wellington Ottawa ON K1A ON4 Ottawa ON K1A ON4...»

«Updated October 3, 2012 2012 VOTING LAW CHANGES: PASSED AND PENDING LEGISLATION THAT HAS THE POTENTIAL TO SUPRESS THE VOTE Below is a compilation of potentially restrictive laws related to voting that were proposed nationwide in the 2011 and 2012 state legislative sessions, and that have been passed or remained pending as of October 3, 2012. For the most current status of any particular bill, it is best to check the state legislative website. Alabama Passed Legislation Photo ID Required to Vote...»

«The Route To Academic Success: “It is a pity that doing one's best does not always answer.” ― Charlotte Brontë, Jane Eyre Emily Wu A dissertation submitted in partial fulfilment of the degree of Bachelor of Laws (with Honours) at the University of Otago—Te Whare Wananga o Otago. October 2015 1 2 Acknowledgements: To my supervisor Colin Gavaghan, for enduring my ceaseless questioning and remaining ever calm and kind. To my family, and especially to Mum, for your unwavering support and...»

«Stanford Journal of Legal Studies An Intramural Publication ESSAY PSYCHODYNAMICS OF THE JUDICIAL PROCESS. Sahand Shaibani COMMENTARIES HISTORY, WHAT IS IT GOOD FOR? A COMMENTARY ON A TALK BY RICHARD POSNER BELEAGUERED FAMILIES A COMMENTARY ON A TALK BY RICHARD BANKS AND JOAN HOLLINGER THE PROBLEM WITH EYEWITNESS TESTIMONY A COMMENTARY ON A TALK BY GEORGE FISHER AND BARBARA TVERSKY THREE ROLES FOR A THEORY OF BEHAVIOR IN A THEORY OF LAW A COMMENTARY ON A TALK BY LEWIS KORNHAUSER ARTICLES...»

«FILED Pursuant to Ind. Appellate Rule 65(D), this Memorandum Decision shall not be regarded as precedent or cited before any Apr 26 2011, 10:10 am court except for the purpose of establishing the defense of res judicata, CLERK collateral estoppel, or the law of the case. of the supreme court, court of appeals and tax court ATTORNEY FOR APPELLANTS: ATTORNEYS FOR APPELLEE: PATRICIA CARESS MCMATH GREGORY F. ZOELLER Indianapolis, Indiana Attorney General of Indiana ANDREW R. FALK Deputy Attorney...»

«EnergyPlus™ Version 8.5 Documentation Application Guide for EMS U.S. Department of Energy March 31, 2016 COPYRIGHT (c) 1996-2016 THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS AND THE REGENTS OF THE UNIVERSITY OF CALIFORNIA THROUGH THE ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY. ALL RIGHTS RESERVED. NO PART OF THIS MATERIAL MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE PRIOR WRITTEN PERMISSION OF THE UNIVERSITY OF ILLINOIS OR THE ERNEST ORLANDO...»





 
<<  HOME   |    CONTACTS
2016 www.dissertation.xlibx.info - Dissertations, online materials

Materials of this site are available for review, all rights belong to their respective owners.
If you do not agree with the fact that your material is placed on this site, please, email us, we will within 1-2 business days delete him.