Artikeldatenbank
Autor(en) | Titel | Zeitschrift | Ausgabe | Seite | Rubrik |
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Gschnitzer, E.; Goliasch, R. | TBM modification for challenging rock conditions - a progress report of the Niagara Tunnel Project (NTP) / TBM-Umbau unter schwierigen Gebirgsbedingungen - ein Baubericht über das Niagara Tunnel Projekt (NTP) | Geomechanics and Tunnelling | 2/2009 | 168-178 | Topics |
KurzfassungThe Niagara Tunnel Project (NTP) is a 10.2 km long bored pressure tunnel that will run under the City of Niagara Falls from the Upper Niagara River to the Sir Adam Beck Power Station. The completed project will enhance the capacity of the Sir Adam Beck Power Station by adding 500 m3/of water per second through the new diversion tunnel. The paper describes the project in which the world's largest hard rock TBM at 14.4 m in diameter is being used to excavate the tunnel. Features of the project include the use of a complex logistic system that allows different work steps simultaneously and describes the site installation for intake as well as for the outlet structures. The paper will also discuss the optimization of the TBM system as the tunnel advances through the varying geology consisting of various horizontal banked shale layers. x | |||||
Hassanpour, Jafar; Rostami, Jamal; Zhao, Jian; Azali, Sadegh Tarigh | TBM performance and disc cutter wear prediction based on ten years experience of TBM tunnelling in Iran | Geomechanics and Tunnelling | 3/2015 | 239-247 | Topics |
KurzfassungAccurate estimation of rate of penetration (ROP), daily rate of advance (AR), and cutter cost/life is necessary for the justification and successful use of a TBM on any tunneling project. Various models have been introduced over the years to provide such estimates. In many cases, these models have been successful with pin point accuracy, and in other instances off by a wide margin. Improving the accuracy of performance prediction models for hard rock TBMs has been the subject of many studies, some yielding project-based models and some more universal models that can be used elsewhere. This paper will discuss the latest version of a new empirical model for estimating penetration rate and disc cutter life for hard rock TBM tunneling based on recent tunneling projects, constructed during the period 2002-2009. The new model was then applied to predict TBM performance and disc cutter wear in different mechanized tunneling projects under construction since 2009. Accuracy and validity of the model for prediction of ROP were checked by comparing predicted and measured values of TBM performance in 24 km of newly bored tunnel. The results indicate that despite some minor deviations in estimates in some tunnel sections, reasonable agreement can be observed between predicted and actual ROP of TBMs. x | |||||
Moritz, Bernd | TBM research in Austria / TVM-Forschung in Österreich | Geomechanics and Tunnelling | 3/2016 | 170-171 | Editorial |
Vigl, Alois; Walter, Andreas; Lemmerer, Johann; Atzl, Georg; Handke, Dieter | TBM research project - Tolerances segmental lining / TVM-Forschungsprojekt - Toleranzen Tübbingausbau | Geomechanics and Tunnelling | 3/2016 | 243-259 | Topics |
KurzfassungIn infrastructure tunnelling projects with shielded TBMs, prefabricated segmental linings are used with various systems and requirements. The required degree of accuracy in segment production and ring assembly is a considerable factor in terms of equipment, time and costs. The required tolerances for segments and ring assembly depend significantly on the segment geometry, lining system and field of application. In order to provide a reasonable basis for allowable segment and installation tolerances, a new approach has been established as part of a research initiative of the ÖBB-Infrastruktur AG with respect to the risks and consequences arising from geometrical tolerances. The paper explains the concept of “tolerance classes” with the approach for their developments, derivation and classification. A practical application example is shown in addition. With respect to the nomenclature of tolerances, a harmonization process has been performed in collaboration with the German committees for underground structures, ZTV-ING and DAUB. The results of harmonizing and proposals of tolerance clarifications are presented within this paper. x | |||||
Arioglu, Basar; Gokce, Hasan Burak; Malcioglu, Fatma Sevil; Arioglu, Ergin | TBM Tunnel under the Bosphorus for the Istanbul Strait Road Crossing Project | Geomechanics and Tunnelling | 4/2016 | 303-309 | Topics |
KurzfassungThe population increase in Istanbul is also reflected in car ownership, which brings an extensive traffic load to the city, especially to the two bridges over the Bosphorus. After feasibility studies, a double deck, 3.4 km subsea tunnel with a 13.7 m diameter at a maximum depth of 106 m below sea level and a capacity of 100,000 cars/day was initiated as a solution for the city. The tunnel, excavated by a custom-made mixshield slurry TBM, passes through very complex geological structures including the Trakya formation, transition zones and marine sediments in a highly seismic area. x | |||||
Thuro, Kurosch | TBM tunnelling in hard rock and in soil / TVM-Vortrieb in Fest- und Lockergesteinen | Geomechanics and Tunnelling | 3/2015 | 182-183 | Editorial |
Rizos, Dimitrios; Williams, Derek; Fouda, Ahmed; Amin, Tarek; Aboudshiesh, Mohamed; Nicola, Anis Dimitry | TBM tunnelling under the Suez Canal - Port Said tunnels in challenging ground conditions | Geomechanics and Tunnelling | 1/2018 | 76-85 | Topics |
KurzfassungThe Port Said Tunnels Project consists of twin road tunnels crossing the Suez Canal with a planned capacity of 2,100 mixed vehicles/hour in each direction. The dual carriageway tunnels are an important part of the Suez Canal Region Development Plan, which will connect the Sinai with other Egyptian provinces to provide a gateway for investment opportunities and speed up the development of Sinai province. The project is located 19 km south of Port Said city, near the northern entrance of the Suez Canal. The tunnels are constructed using slurry shield TBMs in difficult ground conditions, including the presence of methane gas. This paper demonstrates the main challenges encountered during tunnelling and the measures taken to mitigate potential risks during construction and to control long-term differential settlements in the upper, very soft soil. The tunnels are connected by two cross passages which are being constructed using ground freezing and conventional tunnelling. x | |||||
Gütter, Wolfgang; Jäger, Manfred; Rudigier, Günther; Weber, Wolfgang | TBM versus NATM from the contractor's point of view / TBM versus NÖT aus Sicht des Unternehmers | Geomechanics and Tunnelling | 4/2011 | 327-336 | Topics |
KurzfassungThe selection of the correct method of tunnelling from the contractor's point of view mostly depends on its chance to survive the competition of the marketplace, in addition to a host of technical constraints. The tendering and award conditions also decisively influence whether the technically and economically optimal solution is chosen. x | |||||
Zwittnig, G.; Diewald, M.; Hechenblaickner, K. | TBM Wienerwald Tunnel - Steps towards Successful Tunnelling | Geomechanics and Tunnelling | 6/2008 | 558-566 | Fachthemen |
KurzfassungThis article reports on incidents and measures which accompanied the implementation of the Wienerwald Tunnel project. The solutions found to problems that arose as work proceeded were important steps towards achieving a successful tunnelling process. x | |||||
Brux, G. | TBM-Einsatz am Gotthard-Basistunnel. Sachstand Mitte 2004 | Bautechnik | 1/2005 | 48-50 | Berichte |
Bach, D.; Köpf, M.; Lemmerer, J.; Salcher, N. | TBM-S without active support at the limits of its capabilities / TBM-S ohne aktive Stützung im Grenzbereich der Anwendung | Geomechanics and Tunnelling | 5/2010 | 480-490 | Topics |
KurzfassungThree tunnels in the Perschling tunnel chain were driven successively by one TBM-S. In the course of the first two drives, there were many situations when the TBM-S without active face support was at the limits of its capabilities. The last tunnel to be driven was the Raingruben Tunnel with a length of 2,100 m. Based on the experience from the first two tunnels, advance ground improvement measures like grouting and groundwater lowering were undertaken in areas expected to be difficult. The measures meant that the drive could pass through the problem zones successfully. After about two thirds of the tunnel length under about 40 m of overburden, there were repeated collapses of the face. These reached a sudden peak with a major collapse of the face with an overbreak 34 m high above the crown, which extended almost to the surface. This blocked the cutterhead and the drive was stopped for five months. Various measures were undertaken in many stages to permit the TBM to restart. On account of the ground improvement works carried out from the surface, the remaining stretch was successfully bored and the tunnel structures of the Perschling chain were completed on schedule. x | |||||
Thewes, Markus; Hollmann, Fritz | TBM-specific testing scheme to assess the clogging tendency of rock / TBM-spezifisches Untersuchungsschema zur Beurteilung der Verklebungsneigung von Fels | Geomechanics and Tunnelling | 5/2014 | 520-527 | Topics |
KurzfassungAssessment of the clogging tendency of soils is mainly based on the consideration of soil mechanical parameters (plasticity index, liquidity index, grain size distribution). These parameters cannot be determined for solid rock, so the conventional assessment methods cannot be directly transferred to rock. A mechanised tunnel drive in solid rock can encounter critical clogging problems when water is present (groundwater, support slurry), the rock has a tendency to disintegrate (changeable solid rock) and the potential disintegration products are critical (grain size, mineralogical composition). The disintegration tendency of rock is normally determined in the slake durability test. The quantity-based assessment of this test permits few statements about the disintegration products, since they are not tested any further. This paper presents an extension of the slake durability test, which includes systematic soil mechanical tests on the disintegration products. These can be assessed together with the slake durability index to investigate the clogging tendency. x | |||||
Hopfe, Christina Johanna; McLeod, Robert Scot; Gustin, Matej; Brembilla, Eleonora; McElroy, Lori | Teaching data analysis for building performance simulation - Series: Building simulation and calculation tools in teaching | Bauphysik | 5/2022 | 285-290 | Berichte |
KurzfassungThe Erasmus+ project, entitled 'Digital Erasmus - a roadmap to using building performance simulation to achieve resilient design' (DesRes), seeks to transform the learning experience of students in built environment disciplines using a continuous digital learning cycle. Three universities play a part in this project: Graz University of Technology (TU Graz), Delft University of Technology (TU Delft) and the University of Strathclyde (UoS), each developing and delivering a module to complete the learning experience in building simulation. This paper describes the aims and learning objectives associated with the workshops taught at TU Graz as part of the module dedicated to energy monitoring. These workshops tackle the complexity of working with large data sets, which commonly arise from energy monitoring research. In particular, the workshops aim to provide a practical understanding of how to identify, handle, reshape, clean up and evaluate important summary statistics from incomplete data sets. These are fundamental skills in building simulation where model validation and calibration are increasingly commonplace. x | |||||
Techische Inhalte überzeugend präsentieren - Präsentationstechnik für Ingenieure | Beton- und Stahlbetonbau | 7/2004 | 603 | Tagungen | |
Maidl, U. | Technical and contractual aspects of shield TBMs / Technische und vertragliche Aspekte von Schildmaschinen | Geomechanics and Tunnelling | 3/2010 | 234 | Editorial |
Schmeiser, Josef; Hoppe, Peter; Theiss, Reinhold | Technical and logistical challenges of the construction of the Museumsinsel Station in Berlin / Technische und logistische Herausforderungen beim Bau des Bahnhofs Museumsinsel in Berlin | Geomechanics and Tunnelling | 5/2019 | 426-433 | Topics |
KurzfassungThe closing of the gap in line U5 of the Berlin underground completes the missing connection between the Alexanderplatz and Brandenburger Tor stations. The existing line U5 currently ends at the Alexanderplatz. With the closure of the gap, the existing tunnels at the Berliner Roten Rathaus will be connected to the Brandenburger Tor station on the line U55. The project includes the construction of three new underground stations and two single-track tunnels connecting them, which are being tunnelling by shield machines. The new alignment thus passes deep under the city, under the River Spree, the new Berliner Schloss and the Spreekanal as well as running along beneath the street Unter den Linden to the Brandenburger Tor. The construction activities are taking place right in the centre of Berlin and the particular local conditions are a logistical and technical challenge. x | |||||
Technical Brochure "Construction with Cross-Laminated Timber in Multi-Storey Buildings: Focus on Building Physics" available | Bauphysik | 5/2013 | 345 | Aktuell | |
Wenner, D.; Wannenmacher, H. | Technical Challenges During Construction of Alborz Service Tunnel, Iran | Geomechanics and Tunnelling | 6/2008 | 537-542 | Fachthemen |
KurzfassungThe Tehran Shomal Motorway project is one the major infrastructure projects currently ongoing in Iran. The line will connect the capital of Iran, Tehran with the Caspian Sea. The traffic volume is very high and the conditions of the actual roads, especially in the winter and holiday times are dangerous. The Alborz tunnel system, with the actual ongoing excavation of its service tunnel, is the outstanding lot of the Tehran Shomal Motorway project. The project is facing severe and adverse geological conditions like various dangerous gases, water and material inrush and blocked TBM. Depending on the conditions at the remaining length the breakthrough is anticipated by early 2009. x | |||||
Technical Reports: Geomechanics and Tunnelling 1/2020 | Geomechanics and Tunnelling | 1/2020 | 118-120 | Technical Reports | |
KurzfassungLandslide Protection at Mumbai-Pune Expressway, India - Böschungssicherungsmaßnahmen bei Mumbai-Pune-Expressway in Indien x | |||||
Technical Reports: Geomechanics and Tunnelling 1/2021 | Geomechanics and Tunnelling | 1/2021 | 106-109 | Product Informations | |
KurzfassungRemote monitoring of flexible protective control structures to avert natural hazards - Fernüberwachung von flexiblen Schutzverbauungen gegen Naturgefahren x | |||||
Technical Reports: Geomechanics and Tunnelling 1/2022 | Geomechanics and Tunnelling | 1/2022 | 143-144 | Product Informations | |
KurzfassungGlass fibre-reinforced diaphragm walls under Munich Central Station - Glasfaserbewehrte Schlitzwände unter Münchner Hauptbahnhof x | |||||
Technical Reports: Geomechanics and Tunnelling 2/2023 | Geomechanics and Tunnelling | 2/2023 | 218-221 | Product Informations | |
KurzfassungLimberg III pumped-storage hydropower station - sustainable tunnel anchorage - Pumpspeicherkraftwerk Limberg III - Nachhaltige Tunnelankerung x | |||||
Technical Reports: Geomechanics and Tunnelling 4/2019 | Geomechanics and Tunnelling | 4/2019 | 387-388 | Technical Reports | |
KurzfassungThe Filstal Bridge at the high-speed railway line Wendlingen-Ulm - Challenges for the geotechnical planning / Hochgeschwindigkeitsstrecke Wendlingen-Ulm - Herausforderungen bei der geotechnischen Fachplanung x | |||||
Technical Reports: Geomechanics and Tunnelling 5/2020 | Geomechanics and Tunnelling | 5/2020 | 576-577 | Product Informations | |
KurzfassungConsolidation of ore mining rupture zones in Russia - Bruchzonenkonsolidierung im Erzbergbau in Russland x | |||||
Technical Reports: Geomechanics and Tunnelling 6/2019 | Geomechanics and Tunnelling | 6/2019 | 754-757 | Product Informations | |
KurzfassungSandvik launches DT1132i tunnelling jumbo - Sandvik präsentiert den DT1132i Tunnelbohrwagen x |