UNITRACC - Underground Infrastructure Training and Competence Center

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	Nov 14, 2012 Article Yasin Torun No Dig Turkey 2012 – A Great Success TSITT (Turkish Society for Infrastructure and Trenchless Technology) held the NO DIG TURKEY 2012 CONFERENCE in Sanliurfa TR on 2-3 October 2012 with the valuable support of ISTT. Many local and international participants attended this unique trenchless event of Turkey.
	Apr 17, 2013 Article Plastics Pipe Institute, Inc. Pipe Stiffness, Ring Stiffness Constant and Flexibility Factor for Buried Gravity Flow Pipes This report was developed and published with the technical help and financial support of the members of the PPI (Plastics Pipe Institute, Inc). The members have shown their interest in quality products by assisting independent standards-making and user organizations in the development of standards, and also by developing reports on an industry-wide basis to help engineers, code officials, specifying groups, and users.
	Jun 14, 2013 Article The Robbins Company Sacramento UNWI Sections 1 and 2 Project: Special Tunnel Construction with Plastic-Lined PCC Segments The UNWI project was undertaken by Traylor Shea, a Joint Venture for the Sacramento Regional County Sanitation District. It features the first use of plastic-lined concrete segments in North America combined with rapid segment delivery and installation, tight curve radii, tunnel conveyor mucking and abbreviated startup. This inner lining prevents deterioration of the segments by corrosive sewer gases. Once the segments are in place, the joints between segments are heat-sealed together to form a complete liner. Unique solutions were devised to protect the plastic lining without sacrificing the high performance objectives of the system or the safety of the crew.
	Jun 26, 2013 Article Vermeer Corporation Vermeer Axis Guided Boring System Helps Keep British Army Base Dry German contractor Beermann Bohrtechnik GmbH recently completed a first for the German pipeline market with the utilisation of a Vermeer AXIS® guided boring system to install perforated drainage pipe beneath an existing building on an Army base as part of a flood-prevention scheme.
	Jul 23, 2013 Article Aaron Shanahan Cutter Instrumentation System for Tunnel Boring Machines Installing instruments on TBM cutters increases the efficiency of boring and improves cutter life. The benefits of an instrumentation system and findings from field tests will be presented. Instrumentation systems allow the operator to view in real-time how adjusting operating parameters dynamically impacts the cutting environment. By analyzing vibration data, cutter rpm, and cutter temperature, it is possible to infer the rock face condition and how it is affecting cutter operation. Knowing these data provides the operator an indication of cutter wear without entering the cutterhead to inspect the cutters and also alerts the operator to any abnormal cutter conditions.
	Aug 29, 2013 Article Kikuhito Kawasue Shape Measurement of a Sewer Pipe Using a Mobile Robot with Computer Vision By Kikuhito Kawasue and Takayuki Komatsu
	Sep 10, 2013 Article Lok Home Modern Large Diameter Rock Tunnels Recent experience and development of Hard Rock Tunnel Boring on most large diameter tunnels, especially above 8m in diameter, has shown that improved ground support is a prerequisite to improved monthly advance rates. The opinions and comments presented in this paper are heavily influenced by recent experiences on the 12.4m diameter Jinping Project, the 10m diameter AMR project and the 14.4m diameter Niagara Project.
	Oct 28, 2013 Article Xylem Inc. Water and Urban Resilience Flooding is one of the most universal – and destructive – challenges facing cities around the world. World Bank research suggests that floods are the most frequent of all natural disasters and that the number of flood events is rising rapidly. In 2010 alone, 178 million people were affected by floods, with losses exceeding $40 billion.
	Nov 22, 2013 Article Dean Workman Continuous Conveyor Design in EPB TBM Applications While continuous conveyors have become the muck removal system of choice in long, hard rock TBM tunnels, they have gained acceptance in soft ground tunnels only recently. Soft ground, EPB TBM-driven tunnels provide a challenging environment for continuous conveyors due to the variety of materials present. The design of both horizontal and vertical soft ground conveyors will vary depending on the types of excavated material, amount of water present, and other factors. This paper will address the challenges of effective conveyance in different ground materials by analyzing conveyor performance in several recent EPB TBM projects.
	Mar 19, 2013 Article M.A. Martin Behr AQWA Academy – Sustainable capacity development in the water sector Water obtains its fundamental importance from its life giving characteristic. Through its close relationship with health, food security, energy, environment and economy, water is the most important basic resource. Access to water and basic sanitation are, in accordance with the 2010 UN General Assembly resolution, an essential human right. However, this fundamental right is not accessible to a large portion of the world’s population. Sustainable solutions for efficient and resource saving management are therefore needed. A key factor for this is the qualification of skilled professionals. AQWA Academy offers a training program for water sector professionals, which aims to make a contribution to the improvement of the water situation in the most arid region of the world.
	Mar 28, 2014 Article Achim Kühn HDD long distance record in Scandinavia Top performance at minus 27 degrees Celsius
	Jun 16, 2014 Article Herrenknecht AG Raise Boring Rigs for shafts up to 2,000 meter depth With growing demand for raw materials, mines are applying increasing effort and expense to open up deep and difficult to access resources. With this in mind, the new Herrenknecht product portfolio of Raise Boring Rigs allows the optimal drilling of shafts with larger diametersat depths of up to 2,000 meters. In the new and further development of Raise Boring Rigs, Herrenknecht draws on proven technologies and components as well as on extensive knowhow in the area of mechanized tunnelling technology.
	Jul 08, 2014 Article Lena Zemke NORDIPIPE as pull-in version for trenchless rehabilitation of drinking water pipes Pilot project with CIPP technology of SEKISUI SPR in Shumen, Bulgaria - The challenges often involved in drinking water rehabilitation projects are the available time window, residual flow capacity after the rehabilitation, diameter and length to be renewed. Other factors are the capacity to negotiate bends and local contruction site conditions.
	Jul 24, 2014 Article Dragisa Dubocanin Water pipeline from Turkey to Cyprus - 1,600 mm diameter PE 100 pipeline and its flange-technology solution The use of polyethylene pressure pipelines is gaining ever greater international regard and becoming ever more sophisticated.The reasons are diverse, and include this material‘s excellent resistance to corrosion, the flexibility of PE 100 pipes, and the resultant installation and cost benefits.
	Jul 30, 2014 Article Pure Technologies Ltd. What`s in the Numbers? A Review and Analysis of More than 400 Miles of Force Main Inspection and Condition Assessment Data.
	Aug 15, 2014 Article Michelle Pawlowicz FPI Mag Flow Meter Next Generation Mag Meter Measuring Flow in a Pump Station
	Oct 06, 2014 Article Dr.-Ing. Robert Stein Using PVC for the rehabilitation of sewers Since the early 1970s, we have developed from being a prosperity-oriented and throwaway society to become more environmentally aware, though this same society adopts a highly critical attitude towards some real achievements. Why should PVC, of all things, be such a highly controversial material? This is mainly because it has been known, since the late 1980s, that many chloroorganic compounds, such as propellant gas, paint, solvents and plastics are toxic, carcinogenic, genetically harmful and damage the environment. Since then, the Green Party has pushed for the chlorine industry to be phased out. In terms of chemical structure, PVC contains a high proportion of chlorine, which has led to it being caught up in the political crossfire.
	Nov 19, 2014 Article Jessica Maier HOBAS® XXL Tank DN 3600 Protects Dąbrowa Górnicza Against Floods In the view of environmental influences and the expansion of urban areas, the issue of flood prevention becomes a key task for urban infrastructure. HOBAS Tanks have become a widely accepted remedy for this problem – such as a 2,410 m³ large retention system DN 3600 that has been installed in Poland in 2014.
	Jan 07, 2015 Article Lena Tiedeken Quality proves its worth Sewer rehabilitation with SPR™ technology in Budapest, Hungary
	May 06, 2015 Article Dr.-Ing. Robert Stein Evaluation models for the assessment of the structural and operational condition of drain and sewer systems – Part I This is the first contribution of a three-part series that deals with the following approach: "Evaluation models for the assessment of the structural and operational condition of drain and sewer systems". It is motivated by the fact that evaluation models serve as helpful tools for an assessment of the current structural/operational condition of a drain and sewer system and for establishing of a benchmark for prioritizing maintenance and rehabilitation activities based on data acquired from inspections of structural/ operational conditions plus possible influencing conditions.
	Jun 05, 2015 Article Dr.-Ing. Robert Stein Evaluation models for the assessment of the structural and operational condition of drain and sewer systems – Part II This is the second part of the technical report series “Evaluation models for the assessment of the structural and operational condition of drain and sewer systems“. It is about the advanced evaluation model STATUS Sewer.
	Jul 08, 2015 Article Dr.-Ing. Robert Stein Evaluation models for the assessment of the structural and operational condition of drain and sewer systems – Part III This is the third and last part of the technical report series “Evaluation models for the assessment of the structural and operational condition of drain and sewer systems“. It deals with the results of the analysis and the summary of all survey events.
	Aug 11, 2015 Article Achim Kühn Eight TBM ladies set the pace in London tunnel marathon With the breakthrough of Herrenknecht tunnel borer "Victoria" on May 23, 2015, eight Herrenknecht tunnel boring machines magnificently completed a unique mission at Europe's largest infrastructure construction project. In just three years construction crews from three UK and European consortia navigated the high-tech borers from Schwanau through the center of London. Citizens and politicians are proud of the engineering achievements. 42 kilometers of high quality tunnels have been created under one of the world’s busiest cities. Crossrail will carry an estimated 200 million passengers per year.
	Sep 14, 2015 Article Achim Kühn Variable Density Technology: Game Changer for Kuala Lumpur Kuala Lumpur's karst soil riddled with fissures and crevices is a real challenge for tunnel builders. Herrenknecht, the global market leader in mechanized tunnelling technology, developed for Klang Valley MRT Project in Malaysia´s capital in collaboration with MMC-Gamuda Joint Venture a new type of machine. The Variable Density tunnel boring machine can be operated in four different tunnelling modes and thus perfectly adapted to the different conditions. After nearly two years of tunnelling, in mid-April 9.5 kilometers of tunnel were completed and the new technology had proven itself. A major breakthrough for Kuala Lumpur’s Metro and for mechanized tunnelling in difficult soft ground.
	Dec 03, 2015 Article Achim Kühn Mixshield Bärlinde closes east-west gap in Berlin Mitte Upon reaching its final position at the Brandenburg Gate on 10/14/2015 the Mixshield "Bärlinde" has successfully completed its mission in Berlin. Behind the tunnel boring machine (TBM) are two 1,620 meter long parallel tubes, built through the historic center of the capital.