News and Articles
25.03.2008
News
Premiere at IFAT 2008: The Research & Education Area
At IFAT, which takes place from 5 to 9 May 2008 in Munich, a new section is being set up, called the ‘Research & Education Area’. Here universities and research institutes will be presenting their ongoing projects and findings on around 270 square metres of exhibition space in Hall B6.
mehr
25.03.2008
News
Severn Trent Services showcase new water treatment solutions at IFAT 08
Severn Trent Services will highlight its latest technological innovations in water treatment at IFAT 2008
mehr
19.03.2008
News
CargoCap will change lives - Prof. Hänsch considers the 5th transport alternative a product of the future
CargoCap is an idea that will change all our lives! - That's how the German book author Prof. Theodor W. Hänsch sees the idea of transporting goods with CargoCap through underground pipelines according to the principle of pneumatic delivery. This is why he has included the project that was initiated and developed by Prof. Dr.-Ing. Dietrich Stein into his recently published book "100 products of the future: groundbreaking ideas that will change our lives".
mehr
19.03.2008
News
GRUNDODRILL 15N reliability by design and experience
GRUNDODRILL 15N, incorporates the powerful combination of the TT Group's latest technology and worldwide user experience. Precision engineered, GRUNDODRILL 15N 's rigid construction (weight 12500kg) easily handles its impressive 7000 Nm of torque and 167 Kn (16.7 tons) of thrust and pullback. During the drilling process the rig can be quickly configured using the touch screen control and provide all functions with the required power, to suit the toughest ground types, up to the maximum values shown.
mehr
18.03.2008
Fachartikel
UK wastewater plant responds to rising demand and rising standards
The resort town of Gillingham in south west England has responded to growing population plus increased treatment standards by installing four of Nordic Water’s Dynasand moving sand bed filters. The installation in its present configuration is designed to meet anticipated needs till 2013 – but with additional media and designed capacity for a potential fifth unit, it is expected to meet Gillingham’s needs until the year 2020.
mehr
17.03.2008
News
HOBAS is reaching for the stars - 2007 was the best year in HOBAS History
The best present for the 50th anniversary of HOBAS Pipe Systems probably came from HOBAS itself: A record result of the Group's annual accounts since the company's founding in 1957. HOBAS, the leading supplier of CC-GRP (Centrifugally Cast Glassfiber Reinforced Plastics) Pipe Systems, advanced production technology and know-how, achieved a consolidated turnover of approximately 200 Million Euros and grew by 11% within one year only. From 2006, the Group boosted pre tax profits by 26%. These are company results of which Ms. Strohmaier, who was appointed Managing Director of the Group in summer 2007, is very proud: "In spite of the tense general economic situation last year HOBAS peaked in its performance and closed the business year far over the set target."
mehr
13.03.2008
News
Robbins TBM mobilizes at Ceneri
On February 15 a cutterhead turning ceremony marked the official startup of adit tunneling on the Ceneri Base Tunnel. The 9.7 m (31.8 ft) Robbins machine will excavate a 2.4 km (1.5 mi) long access tunnel in Sigirino, Switzerland for the Consorzio Monte Ceneri (CMC) JV-a consortium of CSC, Lugano, Frutiger SA, Thun, Rothpletz, Lienhard + Cie, and Aarau.
mehr
10.03.2008
Fachartikel
Increasing demand for pipeline rehabilitation in Central Eastern European countries
The purpose of the paper was to present development prospects of trenchless technologies and pipeline rehabilitation market in the Central and Eastern European countries. The basis for the paper was infrastructure ownership structure in the light of economic and political changes and financing procedures connected with the access to the EU funds.The paper is partly dedicated to preparations and running large municipal projects along with related opportunities and threats. Several recent trenchless reference projects will be presented in the paper to illustrate the project scale better; in particular those involving comprehensive renovation of water, gas and sewer pipeline.
mehr
07.03.2008
News
Aldo Zilli backs the 'clear choice' for London
Celebrity chef Aldo Zilli has lent his support for the London On Tap campaign, banning the sale of bottled water in his restaurants.
mehr
04.03.2008
Fachartikel
The French recommendations for the structural design of large sewer linings
The French National project of research and experimentation named RERAU (Rehabilitation of Urban Network Sewers) has published in 2004 its recommendations for the structural design of large sewer linings after a five years period of preparation and discussion. The design method works for circular or non circular linings and takes into account the exact geometry of the lining (curve radius and imperfections) and the interaction with the existing host. The concept based on an approximate analytical solution, supports simple formula and diagram usage for stress, deformation and stability analyses. The method gives formulas for the buckling pressure of non circular linings (egg-shaped linings). Geometrical imperfections (ovality, gap, local intrusion, flat spot) are treated individually using reduction factors for the buckling pressure and amplification factors for the stresses (bending moment and axial force) and the deflection.
mehr
03.03.2008
News
Monumental Microtunnelling in Verona, Italy
The problem of flooded buildings located below street level after heavy rainfalls is finally solved thanks to the construction of a new storm water sewer. It was promoted by Acque Veronesi, the water management department in charge of 77 municipalities of Veneto.
mehr
28.02.2008
News
UNITRACC at IFAT 2008
Web-based information-, teaching and working platform for the field of sewer and pipeline construction to exhibit at IFAT 2008
mehr
26.02.2008
Fachartikel
Appropriate application of controlled turbine bypass valves
During recent years, operation requirements for controlled turbine bypass valves and bottom discharge valves have increased continuously. 10 or 15 years ago these valves might have operated „not neatly” under certain opening degrees, i.e., there were cavitation phenomena, vibrations or pulsating discharge of the water. Nowadays, this is not the state of the art any more. These valves must perform neat flow discharge across the whole range of opening, from „Open“ to „Closed“ position and vice versa, without any vibrations nor cavitation.
mehr
25.02.2008
News
Tom Hayes and Isabel Tardif elected to serve on the NASTT Board of Directors
Following an election that was held by letter ballot in November 2007, Tom Hayes and Isabel Tardif were elected to serve on the North American Society for Trenchless Technology (NASTT) Board of Directors. The NASTT Board of Directors is the governing body of the Society. It sets the policy, establishes the budget and verifies that the Society is fulfilling its mission.
mehr
20.02.2008
News
Ditch Witch 250R/T locating system released
The Ditch Witch® organization, the industry leader in the design and manufacture of underground construction equipment, announces the release of its new 250R/T locating system. The company says the 250R/T is one of the most efficient and cost-effective methods for locating and avoiding buried telephone, CATV, power, gas, and water lines. Consisting of a 250T transmitter and 250R receiver, this simple, lightweight system features intuitive controls, an easy-to-read display, and depth estimation up to 15 feet (4.6 m).
mehr
18.02.2008
News
Robbins TBM digs deep for down under sewer project
A new Robbins Double Shield TBM will tunnel underneath the northern suburbs of Melbourne, Australia, calling for innovative changes to the tunneling operations and extensive site monitoring.
mehr
11.02.2008
Fachartikel
Detecting crack-like defects in gas pipelines
EMAT crack detection and coating disbondment (RoCD2)
mehr
07.02.2008
News
Trenchless pipe rehabilitation of large sewers by Trolining's GIPP method
More and more sewer network owners and operators choose the GIPP method for the rehabilitation of their conduits
mehr
05.02.2008
News
Largest Plastic Pipe Conference ever
Organisers of the XIV Pipes Conference expect this year’s event to be the largest ever. The conference brings together the global plastic pipe community and will be held from 22 – 24 September 2008 at the Marriott Hotel in Budapest.
mehr
01.02.2008
News
VINCI has signed the contract of the extension of the Czajka water treatment plant in Poland
The consortium led by Warbud (VINCI Construction Filiales Internationales) has signed the contract of modernisation and extension contract for the Czajka water treatment plant to the north of Warsaw by the Warsaw water and wastewater authorities.
mehr
29.01.2008
News
Underground Moling Service - First in Scotland
On Wednesday 11th January 2008, Underground Moiling Services Ltd, part of the Turriff Group of Companies, became the first company in Scotland to take delivery of a TT-UK/RSP Suction Excavator high speed single fanned machine. This is the first of two ordered by Underground Moling Services Ltd the second being a twinned fan version which is due to arrive at the start of May.
mehr
28.01.2008
Fachartikel
Utilities management - from a contractor's perspective
Even though local authorities are often blissfully unaware of it, their sewerage systems are often characterised by a collection of technical horrors such as:leaking sewerscollapsed sewersfatigued and rapidly deteriorating pipesinsufficient capacity of existing sewers.
mehr
28.01.2008
News
NASTT Cured-in-Place-Pipe (CIPP) liners course set for Atlantic City
The Mid Atlantic Chapter of NASTT is pleased to offer a special one-day Cured-in-Place-Pipe (CIPP) Good Practices Course, Tues., Feb. 12, at the Trump Taj Mahal Casino and Resort in Atlantic City, New Jersey.
mehr
24.01.2008
Fachartikel
Performance characteristics of deterministic leak detection systems
The aim of leak detection and leak location (LDL) is the limitation of losses and possible environmental damage, especially for leaks with hazardous products. The recognition of a leak, the knowledge of its leak rate and its location should lead to preassigned action taken by the operating personnel. A basic requirement for that is a reliable leak detection system that provides well-defined performance characteristics. They mainly depend on the metering precision of the instrumentation and the performance of the process data acquisition. On this basis it provides a well-defined response within an appropriate period of time and unique behaviour on operational intervention. A properly calibrated LDL system is a valuable assistance to the operating personnel. It is sensitive and at the same time it shows a low false alarm rate.
mehr
22.01.2008
News
Robbins TBM goes on the fast track for Papua New Guinea tunnel
A 5.6 m (18.4 ft) diameter High Performance (HP) Main Beam TBM will be delivered on a "fast track" program just six months after contract signing. The Robbins TBM will be used for a series of dewatering tunnels at the Ok Tedi Mine in Papua New Guinea, with excavation beginning in the first quarter of 2008.
mehr
