CartThe International Society for Trenchless Technology
Found 95 results with term `` , from `Intl No-Dig-2019 Florence`
| Displaying 81 to 95 of 95 total papers | Previous 20 1 2 3 4 5 Next | ||||||
| ID | Title | Event | Company | Year ▼ | Category | Abstract | Add to Cart |
|---|---|---|---|---|---|---|---|
| 2280 | The Development of Real-time Detection and Wireless Transmission System of Drilling Parameters in HDD Reaming Hole Author: Zhu Xuming and Wu Xiaoming |
Intl No-Dig-2019 Florence | Faculty Of Engineering, China University Of Geosciences | 2019 | Horizontal Directional Drilling |
n HDD construction, in order to solve the problem that the real working condition in the hole cannot be accurately grasped only by using surface sensors and instruments, it is necessary to directly detect drilling parameters such as bit torque, axial force and mud pressure. For this reason, an automatic detection system is developed, which has underground detectionpartto detect drilling parameters andfinish the signalcode modulation, and then transmit the signal to the surface receiving equipment in the form of wireless electromagnetic waves for demodulation. The new mechanical structure of the underground detection partprovides the best environment for strain gauge and pressure sensors to detect bit torque, axial force and mud pressure while ensuring sufficient strength. In order to ensure the effective penetration of the formation, the transmission frequency and power of the electromagnetic wave are optimized through theoretical analysis and experimental demonstration, and measures are taken to reduce interference, so as to ensure the real-time and accurate acquisition of the real working condition of the underground bit. (click to report an error) more... share... |
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| 2330 | The DLT-Method: Stress Test for Pressure Pipes Author: Andreas Haacker |
Intl No-Dig-2019 Florence | Siebert + Knipschild Gmbh (institute For Testing Of Plastic Materials) | 2019 | Testing & Assessments |
In view of the aging of pressure pipe networks, the pressure on network operators for maintenance is increasing. Although there are trenchless rehabilitation methods available, proof of the suitability has not yet been sufficiently available -due to a lack of test methods that reflect real conditions. With a new special test method, the Dynamic Load Test (DLT), rehabilitation systems for pressure pipelines under pressure shock loads -even in the vacuum range -can now prove their suitability for the first time. A system for dynamic component testing was developed and put into operation in Germany -with the participation of a working group of the German Society for Trenchless Technologies (GSTT) -at the Siebert + Knipschild testing institute. The first systems tested and approved on the basis of DLT are now in use in Germany and promise growing confidence in rehabilitation technologies and thus a revival of the market for pressure pipe rehabilitation systems. (click to report an error) more... share... |
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| 2281 | The Drilling Contractors Association (DCA-Europe): A European organization for Quality and Education in HDD Author: Jorn Stoelinga |
Intl No-Dig-2019 Florence | Dca-europe | 2019 | Horizontal Directional Drilling |
The DCA was established in 1994 by the leading HDD companies in Europe. From the start the goals have been to support, promote and develop the HDD technology. It aims at creating a level playing field, improving understanding for roles and responsibilities of parties involved and improving quality. In the Technical Guidelines basic technique and responsibilities are described. These guidelines are being revised regularly, the current (4th) edition is under revision again, in order to keep up with recent developments. Special issues that of interest to all involved in the HDD industry are discussed in special task groups, in which members take place. Recently a task group was finalised, studying the options of dealing with drilling fluids after completion of the HDD. Another task group is studying the coating materials suitable for HDD, advising on the use of proper coating for both pipe and field joint for various circumstances. Recently a new task group was started trying to get a uniform system of gathering and transmitting data collected by the drilling rigs. Achieving and maintaining high quality and safety standards is very important to the DCA. We actively support training of personnel, with lecturers and content support at the Drillers school in Celle (Germany) and Deltares (The Netherlands). Other events aimed at improving knowledge and quality organised by other parties are supported by presenting or providing lectures at those events. On our yearly congress contractors, principals and suppliers come together, with interesting lectures and workshops in the day and an entertaining programme in the evening it is a great opportunity for networking and exchanging ideas in an informal setting (click to report an error) more... share... |
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| 2319 | THE ITALIAN SOLUTION FOR THE CADASTRE OF TECHNOLOGICAL INFRASTRUCTURES Author: Fulvio Ananasso and Sergio Farruggia, Calogero Ravenna; Monica Sebillo |
Intl No-Dig-2019 Florence | Associazione 'stati Generali Dell'innovazione'; Asa -aziendaservizi Ambientali; Associazione 'amf | 2019 | Site Survey / Pipe Inspection |
This paper aims at showing the implementation of the Italian cadastre of technological infrastructures, its maintenance and updating. SINFI(National Infrastructure Federated Information System) is the identified platform devoted to the coordination andmanagement of nationalinfrastructures in the framework of the broadband and ultra-broadband Italian strategy. Among its functions, it facilitates sharing of infrastructures, thanks to coordinated management of the under-and over-ground technological networks and related interventions; it also offers a single dashboard that efficiently manages and monitors all interventions.Previously, the need for such a platform was put in relation to the rational use of the underground and the implications onto themanagement of public land: consequently, even on the mobility infrastructures and transportation systems, as well as risks for people and manufactured goods, but also to prevent potential economic damagesfrom accidental breakage of pipes and ducts.The increased awareness in terms of safety and civil protection has further expanded its importance, linking, for example,its availabilityto environmental issues(such as hydrogeological instability)tothe context of critical infrastructure management (see Directive 2008/114 / EC)Last but not least, the availability of such aregister is necessary to publicly check choices on sustainable development, according with the UN 2030 Agenda for Sustainable Development, signed in September 2015 by the Governments of193 UN Member Countries, specifically with respect to the themes of Strategic Development Goals 9 ("Build Resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation")and 11 ("Make cities and human settlements inclusive,safe,resilient and sustainable").The paper aims at providing solid answers to a multiplicity of operators / stakeholders in this respect / application framework, thanks to the availability of a national information system specifically dedicated tothe over-and under-ground network infrastructures--the SINFI. (click to report an error) more... share... |
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| 2304 | THE PATH FORWARD FOR PIPE BURSTING ASBESTOS CEMENT PIPE WHILE MEETING EXISTING US REGULATIONS Author: Edward Alan Ambler; John Matthews ; Lawrence Pultz; Ryan Stowe |
Intl No-Dig-2019 Florence | Leed Ap; Battelle Memorial Institute; Cph Inc; Battelle Memorial Institute | 2019 | Pipe Bursting and Splitting |
The city of Casselberry completed its $10.3 million asbestos cement (AC) pre-chlorinated potable water main pipe bursting project in April of 2014, which replaced approximately 35 miles of AC pipe. City staff has worked closely with the contractor, engineers, and regulators from the local to federal government to fully understand the applicability of the National Emissions Standards for Hazardous Air Pollutants (NESHAP) to pipe bursting of asbestos cement pipe. The Environmental Protection Agency (EPA) and industry representatives have recognized the need to understand the potential environmental impacts of AC pipe rehabilitation and commissioned a study to determine those impacts. The environmental impacts of pipe bursting AC pipe have been analyzed with the Casselberry Water Quality Improvement Project as its pilot project. Results of the study indicate that bursting AC pipe is environmentally friendly while providing the option to rehabilitate the existing pipeline in place. This paper will present the results of impact study of pipe bursting AC pipe while clearly describing how to burst AC pipelines and meet all existing regulations. This paper will also describe the challenges and successes of implementing a pipe bursting project, from field application of pipe bursting technology to working directly with regulators and right-of-way controllers who may be skeptical about pipe bursting AC pipe. A potential path forward through submission of a potential Administrator Approved Alternate to EPA that accepts a streamlined AC pipe bursting process will also be presented. (click to report an error) more... share... |
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| 2282 | THE ROLE OF TORQUE IN THE REAMING PROCESS IN HDD APPLICATIONS Author: Renzo Chirulli and René Albert |
Intl No-Dig-2019 Florence | Vermeer Emea | 2019 | Horizontal Directional Drilling |
Horizontal directional drills are traditionally classified on the basis of the maximum pullback force they can deliver. Nevertheless, during the reaming process the pullback force is just one of the operational parameters that plays a role in the borehole making. A simplified mathematical approach shows the role and the importance of torque in the borehole-making process. (click to report an error) more... share... |
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| 2295 | TIGHT CURVED MICROTUNNEL IN AUCKLAND; NEW ZEALAND Author: Yann Rouillard |
Intl No-Dig-2019 Florence | Bessac | 2019 | Microtunneling and Pipe Jacking |
The City Rail Link project in Auckland is the biggest underground infrastructure project ever made in New Zealand. The project consists of the construction of an underground rail tunnel between two existing rail stations. As part of this project, Bessac, associated with the local company March Construction, has successfully carried out the CRL C6 contract. This package consisted in the diversion of an existing stormwater tunnel located in the axis of the future rail tunnel. The scope of works included the construction of a 425 m long microtunnel, 2.0 m ID with a 100 years' design life and the construction of shafts and associated civil works, in a sensitive urban area. The geological conditions were very heterogeneous: the first part of the microtunnel is in soft clogging rocks and soils and the last part is in a mixed face with very hard and abrasive basalt. The project was originally designed to be carried out in two straight drives. Thanks to its expertise and previous experiences, Bessac brought an innovative solution to build the microtunnel in only one curved drive and so save the construction of an intermediate shaft. This alternative route included a very tight "S curve", with a radius of only 150m. Almost 90% of the length was curved. This solution was possible thanks to an adapted MTBM for such curves, the implementation of specific hydraulic joints between each pipe with a real-time monitoring system and experienced operators to ensure an accurate guiding while respecting the high local safety standards. (click to report an error) more... share... |
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| 2269 | TRENCHLESS SOLUTIONS FOR THE INSTALLATION OF GAS DISTRIBUTION NETWORKS Author: Thorsten Schulte |
Intl No-Dig-2019 Florence | Tracto-technik Gmbh & Co | 2019 | Horizontal Directional Drilling |
Well developed natural gas distribution networks play an important role in the success of the energy transition. In order for the pipeline network to be able to transport and store sufficient quantities of fossil and increasingly renewable natural gas, high investments are required for the maintenance and expansion of the infrastructure. These expenses can be significantly reduced with trenchless technologies in an environmentally friendly way and expansion can be accelerated without compromising supply quality and security. (click to report an error) more... share... |
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| 2296 | TUnIS Navigation E-Power Pipe. Precise Guidance of Small Diameter Tunneling Machines Author: Torben Hähnle |
Intl No-Dig-2019 Florence | Vmt Gmbh | 2019 | Microtunneling and Pipe Jacking |
The trend towards longer and smaller-diameter projects in Microtunnelling represents an enormous challenge for the guidance system. Pioneering innovations make the use of smaller and smaller machines possible, which do not allow conventional determination of position due to the reduced space availability. The areas of use for these small-diameter TBMs are various, and the guidance system must likewise be flexible toadapt to the requirements. An application that needs to be particularly emphasised in this connection is the Herrenknecht E-Power Pipe® method. The circumstances and demands on exact guidance could not be any more challenging - the machine and the pipeline cannot be accessed by personnel, there is absolutely no visual connection to the TBM, a conventional control survey using known reference points in the shaft area is not possible at any point in time. Despite all this, it is possible for the TBM to tunnel 3D curved advances 1000 m and longer, with the position being determined and represented continuously with an accuracy of less than 10 cm. For this, VMT offers the tailored guidance system, TUnIS Navigation E-Power Pipe®. The system allows a permanent, precise calculation of the position and displays the current and expected 3Dmovement direction numerically and graphically. For this, a hybrid system consisting of a fibre-optic gyroscope and an electromagnetic probe are used, which do profitably improve each other in an innovative navigation process that never requires the machine to be idle. This bi-directional support ensures high accuracy at all times so that even the small-diameter machines can always be controlled securely and accurately. The paper presents the challenges of small-diameter Microtunnelling in terms of guidance and the solution developed for the E-Power Pipe® method. (click to report an error) more... share... |
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| 2239 | UNI Pdr-Guideline on Low Environmental Impact Underground Infrastructure Technology Author: Esposto Feliciano, Paola Finocchi, Alessandro Olcese , Elena Mocchio, Alessandro Delvecchio |
Intl No-Dig-2019 Florence | Iatt , Uni | 2019 | Asset Management and Work Planning |
Technical standardization is an important tool in order to develop the no-dig market.IATT, in collaboration with UNI, has prepared a series of Best PracticeReferencesfor some Trenchless Technologies and this job is continuing to cover all the TT thanks to a Permanent Technical Commission.The UNI/PdR contains technical specificationsregarding innovative mattersfor the application of no-dig technology to all network services (water, gas, sewerage, telecommunications, electricity); they provide planning and technical indications for designers, contractors and costumers. The paper will provide a synthesis of the contents of the already published UNI/Best/ Practice Rules for various no-dig activities.Moreover some anticipations for those almost ready for their publication will be given. (click to report an error) more... share... |
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| 2301 | Unique horizontal drain installation under a building using pilot tube guided auger bore methods. Author: Michelle L. Macauley; Steve Torgerson |
Intl No-Dig-2019 Florence | Macauley Trenchless; Trenchless Construction Service | 2019 | Auger Boring and Pilot Tube Microtunneling |
This paper describes design and construction considerations for the pilot tube guided auger bore installation of one 10-inch (25-cm)diameter drain line and four 6-inch (15-cm)diameter horizontal drains under a critical FAA Air Traffic Control Facility with no interior access for construction. Key considerations included high water table in granular soils, limited work area around the building, and coordination around (and under) a critical infrastructure facility that operates continuously and cannot shut down. The facility was built on wetlands in the 1960s and expanded in the 70's and 80's with deeper subbasements and a larger 120-meterby 120-meterfootprint. This facility has reoccurring problems with flooding in the basement areas, which houses critical equipment/electrical components. The original construction included waterproof membranes, sub-slab drain tile, and perimeter drains to allow dewatering under the basement structure. In the 1990s water ingress was observed in the basement and a groundwater management system of 7 vertical dewatering wells was installed around the perimeter of the facility. These wells worked effectively until 2010 when groundwater was again observed in areas of the basement. The existing vertical wells were subsequently upgraded with larger pumps/stainless steel screens andan additional vertical well was installed to mitigate water infiltration into the facility. These measures worked until 2014 when the wells were found to be heavily fouled with iron-fixing bacteria which resulted in lost efficiency. After significant study, a plan was developed that will provide redundancy of the system and groundwater protection for the building. This plan included installation of four horizontal wells under the existing building to augment the 8 vertical dewatering wells and installationof a 10-inch (25-cm)diameter drain line under the building to tie to a new pump station. Design and construction challenges are discussed in this paper. (click to report an error) more... share... |
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| 2243 | Use of New Condition Assessment Technologies for Selecting Trenchless Rehabilitation of Wastewater Networks in Ras Al Khaimah, UAE Author: Abdul Qadir Malik |
Intl No-Dig-2019 Florence | Ras Al Khaimah Wastewater Agency | 2019 | Asset Management and Work Planning |
The Ras Al Khaimah Wastewater Authority (RAKWA) manages wastewater collection and treatment of sewerage in the emirate of Ras Al Khaimah (RAK) - the fourth largest of seven emirates of the United Arab Emirates (UAE). Having the most fertile soil in the country, due to a larger share of rainfall and underground water streams from the Hajar mountains, combined with a growing number of resorts taking advantage of Gulf beaches, RAKWA is undertaking a series of major wastewater rehabilitation and expansion projects supporting a population of nearly 420,000 people. Representing over 14.5km of recently installed plastic and fiberglass reinforced pipe, RAKWA targeted its City West Trunk Main, Mairid Network and Force Main Network - Area 1 Project, a currently 'inactive' network, for addition to the city's growing underground wastewater network, requiring innovative condition assessment, prior to its addition to the collection system.RAKWA engineers had noticed numerous sections of the 'new' network were experiencing high levels of infiltration, initially approved by high resolution CCTV cameras. Located on the Arabian Sea, tidal infiltration is a constant threat resulting in infiltration and exfiltration. As a result, prior to connecting lateral services to the network, RAKWA decided to incorporate Focused Electrode Leak Location (FELL) to identify and quantify specific leak locations for Fiberglass UV-Cured Trenchless Rehabilitation. FELL had been recommended in a recent Masterclass by UK-based WRc and is supported by ASTM F2550, leading to RAKWA's decision to use both IBAK Panorama CCTV and FELL technologies. While Gulf authorities have commonly relied on CCTV of their pipes, defects at joints and manhole connections many times have gone unnoticed, adversely affecting network performance. This paper will share results from the first major benchmark of CCTV & FELL technologies in the Gulf and discuss selection parameters to conduct 3.5km of UV-cured CIPP and 310 patches or sectional liners. (click to report an error) more... share... |
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| 2302 | UTILISATION OF MICROTUNNELING TECHNOLOGY FOR CONSTRUCTION OF THE NEW GAS PIPELINE BETWEEN AZERBAIJAN AND EUROPE Author: Yann Rouillard |
Intl No-Dig-2019 Florence | Bessac | 2019 | Microtunneling and Pipe Jacking |
Due to the increase of the gas demand in the European market, a new 42'' pipeline is under construction to link the Shah Deniz gas field in Azerbaijan to western Europe. In this context, Bessac has been awarded seven sensitive portions of the project to be constructed trenchless by microtunneling. The two first portions are located in Azerbaijan & Georgia, on the SCPX project. Microtunneling is used to limit environmental impact to install the pipeline underneath the Kura river. Each portion consist in a 1.8m id microtunnel excavated from a 20 m deep shaft to pass under the river. In Azerbaijan, the drive is 1000 m long and in Georgia, it is 600 m long. The five other portions are located in Albania, on the TAP project. On the two first sections, microtunneling is used in narrow valley context to pass under mountains. Each drive consists in a 1.8m id microtunnel excavated from a 8 m deep shaft. The drives are 595m and 555m long. After the construction of the microtunnels, the most challenging part of this kind of project is the installation of the 42'' steel gas pipeline in the tunnels. The pipe installed on roller in surface and is then pulled in the tunnel with a linear winch up to microtunneling launching shaft. Once the pulling operations completed, the annular void between the pipeline and the microtunnel is grouted. On the two followings sections, a 1.6 m id microtunneling machine is used to cross a river. The drives are 435 and 420 m long. The last section, 400 m long and 1.6 m id as well, is located 2000 m.a.s.l. to avoid a landslide area. These projects are accomplished in an oil & gas context with very high QHSE standards. All these drives have been successfully completed in 3 countries and in various and challenging geotechnical conditions. (click to report an error) more... share... |
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| 2322 | Water main rehabilitation with inserted hoses - Considerations on design and installation Author: Andreas Gross |
Intl No-Dig-2019 Florence | Rädlinger Primus Line Gmbh | 2019 | Slip Linings (Loose Fit) |
DIN EN ISO 11295:2018-06 references the classification and information on design and applications of plastic piping systems used for the renovation and replacement. The updated version includes now the rehabilitation with so-called inserted hoses. The paper presents the characteristics of this newly included product family and focuses in particular on the flexible aramid reinforced lining solution Primus Line® which falls into this product family. The paper will discuss in particular the no-dig rehabilitation of potable water mains using the aramid reinforced lining system. The paper will show the composition of the lining material and the functionality of the termination fittings. Furthermore, the paper will present the design considerations for a design life of 50 years. The paper will show the feasibility to install through bends and the underlying design and installation considerations. In addition, the installation methodology is shown. The requirements on installation start pits and destination pits are discussed as well as installation through manholes. The CCTV inspection, pipe preparation and cleaning requirements are discussed before the liner installation can commence. The paper will present the areas of application and show case studies on completed projects. The paper concludes with the advantages and limitations of this system. (click to report an error) more... share... |
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| 2320 | WRc's Use of Focused Electrode Leak Location (FELL) to Assess Gravity Sewers in the United Kingdom, United States, and Germany, Before & After Trenchless Rehabilitation Author: Peter Henley; Chuck Hansen |
Intl No-Dig-2019 Florence | Wrc Plc; Electro Scan (uk) Ltd | 2019 | Site Survey / Pipe Inspection |
Since 2015, WRc plc has completed numerous projects utilizing Focused Electrode Leak Location (FELL) to as-sess gravity mains, before and after rehabilitation, to detect leaks missed by conventional surveys. This paper discusses several UK FELL-based projects and a recent project undertaken by WRc in partnership with Electro Scan Inc. for Gelsenkirchen, Germany-based IKT, describing how low voltage conductivity can:1. Identify and quantify estimated levels of infiltration in litres per second or gallons per minute.2. Find major defects while other methods may not, i.e. ensure that major defects are not accepted.3. Help prioritize repairs.4. Survey sewerage mains and private sewer laterals, without interrupting service or bypass pumping.5. Test trenchless rehabilitation for water tightness.Based on the joint project conducted by WRc and Electro Scan personnel on IKT's most recent Short-Liner research project, this paper also discusses updated revisions to core FELL-based testing algorithms to recognize higher stan-dards (i.e. lower tolerances) for defects in Cured-In-Place Pipes (CIPP) and sectional liners, including the identifica-tion and quantification of pinholes. (click to report an error) more... share... |
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