Modeling fluid-infiltrating, partially-frozen and quasi-brittle porous media with nonlocal discrete-continuum techniques. Rheological characterisation of earth-pressure-balance EPB support medium composed of non-cohesive soils and foam. On adaptive polygonal finite elements: An application to collapse plastic analysis. Guest lecture — Dr. Optimierungsgeschützter Entwurf von Stahlbetonbauteilen am Beispiel von Tunnelschalen. Calibration of numerical models considering uncertainties — application to mechanized tunnel simulations.
The round thing in the square thing: Civil Engineering football match on 15th July Forward and inverse modelling of seismic waves for reconnaissance in mechanized tunneling. Numerical simulation of a progressive slide mechanism in a sensitive clay. The Smaaroed case from Sweeden December Computational strategies for predictions of soil-structure interactions during mechanized tunneling. Monitoringbasierte strukturmechanische Schadensanalyse von Bauwerken beim Tunnelbau.
Performance analysis of TBM's by using analytical cutting models and geostatistics. Guest lecture on Modeling of Tunnels for Construction and Maintenance. Thermodynamics, Numerical Formulation, Applications. Radar interferometry applied at Dusseldorf Wehrhahn Line - sub project D3. DFG Funding Atlas It lists the figures for publicly funded research in Germany for the year It thus occupies a leading position, ahead of other universities involved in the excellence initiative, such as RWTH Aachen.
Compared to the edition, this reflects an increase of around one million euros. With a total funding of In the current edition, it is now in second place with a funding volume of The complete document is available on the DFG website see Flyer for further details.
Ruhr University, Bochum It was the news of the day: A joint success which was achieved in cooperation of all SFB members. The long-awaited message about the continuation of the research funding reached Prof. With 15 sub projects, 35 PhD researchers and one integrated graduate school, it is one of the best-funded research centers at the RUB. Ruhr University, Bochum The use of underground space is a key factor for sustainable development of both industrial as well as emerging and developing countries.
Underground transalpine transport links, the tendency for larger diameters, difficult geological conditions or high groundwater pressures pose major challenges for tunneling and drilling technologies.
The workshop series ,,Herausforderung Tunnelbau '' will once again be dedicated to an exciting and up-to-date topic this year - details will follow shortly. Existiert dieses Thema in der Wissenschaft und wie zeigt es sich? Was können die Beteiligten tun, um damit umzugehen und die Unterschiede auf Augenhöhe anzuerkennen?
Diese Themenfelder werden betrachtet und bearbeitet mit dem Ziel, Bewusstheit und Handlungsspielraum zu erlangen. Ausgehend von der Definition von Vorurteilen dem anderen Geschlecht gegenüber werden Fallbeispiele von Frauen in der Wissenschaft analysiert, um die Bedeutung zu verstehen und Handlungsmöglichkeiten sowohl präventiv als auch situativ zu erarbeiten. Das individuelle Potenzial der Teilnehmenden wird geschult und erweitert.
Urteil, Entscheidungsfähigkeit und Status werden reflektiert und im Zusammenhang erprobt. Das Ziel ist, den Teilnehmenden individuelle Lösungen und einen reflektierten Umgang mit dem Thema zu ermöglichen. Anmeldungen bis zum Saal 1, Veranstaltungszentrum Ruhr-Universität Bochum The application of steel fiber reinforced concrete for precast tunnel lining segments is increasingly gaining importance for several years.
The workshop "Hybrid lining segments for modern tunnel constructions - Intelligent use of steel fiber reinforcement" mainly aims to present and discuss recent advances and developments both within and outside the SFB Furthermore, its objective is to give an overview on practical experiences regarding the use of steel fiber reinforced concrete for segmental linings.
In particular aspects of material, production, robustness, durability and sustainability are in the focus of the workshop. Online registration see Flyer for further details. The presentation is open to all SFB members. Under the heading, "From Past Design to Future Decision" students had the chance to meet national and international scientists and work with them side by side on different engineering projects. Abdiel Leon Bal, and Dipl.
Both lecturer and students enjoyed the inspiring atmosphere and the SFB is thankful to have been part of this special event. A data-driven computational framework combining Bayesian machine learning for imperfection sensitive quantities of interest, uncertainty quantification and multi-objective optimization is developed to analyze and design new materials and structures.
This talk intends to demonstrate the generality of the proposed framework, highlighting key challenges and possible solutions illustrated by three different design problems: Image gallery see Flyer for further details.
Vienna, Austria The utilization and exploration of underground space is an essential method for the above-ground development which opens up new perspectives and opportunities. Consequently, one is being faced with new challenges of urban modernization, efficient urban and transnational mobility and the development of clean energy resources.
As a result of this, special attention is drawn to the comprehensive utilization of urban underground space, the construction of high-speed transportation systems, and the use of underground space for environmentally friendly exploitation and temporary storage of energy. Over the past few decades, the need for underground infrastructure, such as urban underground complexes, tunnels, deep underground water reservoir and sewage systems, underground logistics and underground energy storage systems, has been rapidly emerging.
Along with Tongji University, the SFB is organizing a forum for researchers, dedicated to the exchange of the latest research developments in the area of underground construction in soft soil or rock mass. This forum welcomes contributions related to the following topics: The 11 papers of this special issue present new developments for the consideration of stochastic and non-stochastic uncertainties in various engineering and associated disciplines.
All papers of the Special Issue are available Open Access and can be downloaded here. The scholarship enables awardees to conduct a research visit of up to three months at institutes related to the SFB at Ruhr University Bochum. Fast-Track scholarships "Bachelor to Ph. The scholarship is restricted to M. It provides financial support for the first year of a "Fast-Track" version of the Master degree program "Computational Engineering" at Ruhr University Bochum. Short-term scholarships for Ph.
The scholarship supports the initial phase up to one year of a Ph. Prerequisites are an excellent M. On May 28th Prof. The title of his presentation was "Computational Modeling in Mechanized Tunneling: The Sun Jun lecture is a specific, highly prestigious format of Keynote lectures. In the past, leading scientists such as P. Soga were invited as holders of the lecture.
Ruhr University, Bochum Prof. Recently, isogeometric analysis has also been used for the analysis of crack propagation, also for discrete approaches. An elegant approach is to exploit the flexibility of NURBS and T-splines in increasing or lowering the order of continuity, which can be carried out in the parameter domain. While this facilitates the introduction of discontinuities, it puts some restrictions on the direction of crack propagation.
Apart from isogeometric interface elements, Powell—Sabin B-splines have been investigated to model discrete crack propagation. Another difference is that the crack is now directly introduced in the physical domain. Different from smeared approaches, discrete crack modelling allows for the straightforward description of mass transport in cracks, as for instance occurs in a fluid-saturated porous medium.
A multiscale model is derived. The resulting two-scale model imposes some requirements on the interpolation of the displacement and the pressure fields, which can be satisfied elegantly using spline basis functions. Burg Schnellenberg, Attendorn, Germany Image gallery. Bi- and trilateral PhD. In , the joint workshop will be integrated within GeoShanghai Conference on a special session. Image gallery Program see Flyer for further details.
The group held its kick-off meeting at the STUVA Conference which, with over young engineers in attendance, was a resounding success.
To find more information about the following workshop April 13th please visit: David Potts form the Imperial College London, UK, will hold a guest lecture in the framework of SFB about 'Assessing ground interaction effects and potential damage to existing tunnels before and after excavation works'. A major research project investigating the effect of tunnelling on existing tunnels has been completed at Imperial College London. This subject is always of great concern during the planning and execution of underground tunnelling works in the urban environment.
The new Crossrail transport line under construction in London passes beneath numerous tunnels, including a number of those forming part of the London Underground network. The opportunity was taken to observe the response of the Central Line tunnels during the construction of the new Crossrail tunnels in central London.
Extensive instrumentation was installed within one of the tunnels and in the ground around it. In order to assess the influence of the existing tunnels on ground movements field monitoring was undertaken in Hyde Park to establish the greenfield conditions. The monitoring adopted comprised a combination of conventional techniques, such as precise levelling and taping, and state-of-the-art instrumentation such as optical fibre and MEMs technology.
In addition to the field work, advanced numerical analyses were performed to model the complex ground-structure interaction at Hyde Park using sophisticated constitutive models.
Excellent agreement was achieved with the field data. Another component of the research project was to examine how the stresses develop within a cast iron segmental lining as it deforms.
A half-scale cast iron model was tested in the laboratory, varying factors such as bolt force and the radial load applied to the extrados. A further theme of the research was to carry out a series of advanced soil tests on high quality samples taken during installation of the field instruments. Parameters obtained from these tests allow the input data for the numerical analyses to be refined. This presentation summarises some of the main aspects of the research project and some of the primary findings.
Ruhr University, Bochum Dr. The Swiss high-level nuclear waste repository concept requires access and ventilation tunnels or shafts, repository drifts, and underground laboratory space. The great length of repository drifts and tunnels at repository depth on the order of 24 km, together with the constraint to limit the damage of the geological barrier, among other factors, may suggest the use of tunnel-boring machines TBMs. The new Belchen tunnel is being constructed with enormous technical effort, because the old tunnel tubes have been damaged by swelling processes in long sections with Gipskeuper and OPA.
Investigations include structural geology, rock mechanical and mineralogical properties of the OPA in the Belchen area, fault hydrogeology, rock mass deformations, in-situ and laboratory OPA swelling behaviour, and short- and long-term changes and interactions e.
In-situ monitoring systems were installed in a section where the tunnel has its maximum overburden of about m, close to a cross-passage. The forum supports young engineers in taking the step from studies to their further career and establishes contacts within the tunneling community.
The Kick-off Meeting, which was attended by nearly engineers from industry and research, took place on 6th December at STUVA, an international conference for tunnels and infrastructure.
The next meeting in spring will be hosted by the SFB Yiqian He form the Dalian University of Technology, China, will hold a guest lecture in the framework of SFB about 'Image-based numerical prediction for effective thermal conductivity of heterogeneous materials: A quadtree based scaled boundary finite element method'.
The evaluation of Effective Thermal Conductivity ETC for heterogeneous materials is of interest in many heat transfer applications.
For example, the ETC is proved to be one of the most important parameters in packed beds, metal foams and sponges, functionally graded materials, granular materials and fibrous porous materials, etc. In this talk, a new framework that centres about a quadtree based scaled boundary finite element method SBFEM is developed for the heat transfer analysis and the estimation of ETC.
Two significant advantages of the proposed methods includes: The proposed method can be used to model the geometrical features directly based on images. Each generated quadtree or octree cell can be modelled as a scaled boundary polygonal element or a scaled boundary polyhedral element, respectively, which eliminates the hanging node issue encountered in the FEM and XFEM.
Furthermore, as the element solutions for cells of the same pattern but different sizes are proportional, so the efficiency of this approach is high, because the limited cell patterns generated can be precomputed and quickly extracted when required. An inverse analysis is presented to numerically evaluate the ETC. The inclusions are considered to be randomly distributed. The temperatures values at some sample points in the heterogeneous material is calculated as the measured points, and then the ETC is identified in an equivalent material model by solving an inverse problems, in which the sensitivity is calculated and the Gauss-Newton method is used.
Numerical examples are provided to demonstrate the effectiveness of the proposed method, considering the distribution of circular or elliptical inclusions are random, and the influence of the size and shape of inclusions are investigated.
The third kind boundary condition usually gives relationships between functions and their derivatives along the boundary, and often appears in modelling interactions between two structures, for instance, the interaction between surrounding rock and tunnel, the interaction between buildings and foundation, and the interaction between tunnel segments and so on. In the modelling process, the impact of one structure on another is described by the third kind boundary condition.
For viscoelastic TKBC, a recursive constitutive equation is derived, and a temporally-piecewised algorithm is developed. In addition, a proof that the appended stiffness matrix is block-circulant is presented when the TKBC are cyclic symmetric, resulting in a reduction of computational expense of SBFEM based numerical analysis.
Numerical examples are given to verify proposed approaches, and satisfactory results are obtained. The anomalous shear modulus behavior of fused silica glass has been a long-standing topic of investigation. Likewise, the anomalous pressure dependence of the strength of amorphous silica has also received considerable attention. In order to formulate a model of material behavior, we perform molecular dynamics MD calculations designed to data-mine information regarding the permanent deformation, both volumetric and in shear, of amorphous silica.
Based on these observations, we formulate a critical-state constitutive model for fused silica and fit material parameters to the MD data.
Remarkably, the MD data reveals that the limit yield surface is non-convex. The treatment of this non-convexity necessitates a fundamental extension of classical plasticity. We consider the implications of this extension and utilize tools from the Direct Methods in the Calculus of Variation to characterize explicitly the effective behavior at the macro-scale.
The resulting effective model of plasticity, together with consideration of brittle fracture of fragmentation, provide the basis for the simulation of failure waves in glass rods impacting a rigid target. The calculations are carried out using the Optimal-Transportation Meshfree OTM method combined with the eigenerosion approach to fracture. This computational approach proves effective at predicting the experimentally observed failure wave speeds and complex fracture and fragmentation patterns, while simultaneously allowing for complex material behavior.
The Guest Lecture by Prof. Ortiz is followed by four presentations by Ph. Fritz Grübl wird in seinem Vortrag auf die Herausforderungen bei der Planung und Herstellung von Tübbingringen für schwierige Bedingungen eingehen. Der Vortrag von Dr. Mechanical characterization of materials and assessment of residual stresses are, at present, subjects of growing interest in engineering for the diagnosis of structural components and structures.
In this talk, some research results will be presented about diagnostic analyses, on the basis of experimental data collected from quasi-non-destructive tests, providing practical advantages, with respect to the present practice, such as reduced damages, times and costs and, possibly, execution in situ. The methodologies presented herein for identifications of parameters are centred, from computational point of view, on inverse analyses based on mechanical and mathematical procedures apt to provide more accurate and reliable parameter estimates.
Moreover, stochastic inverse analysis procedures are proposed, based on Kalman filters, for quantification of estimates uncertainty. The presented practical applications concern metallic structural components and the following combined experiments: In both cases, an innovative procedure is developed; novelties consist of combined identifications of both material parameters elastic-plastic, with possible extensions to creep and anisotropic behaviours and residual stresses, possibly in situ.
Consequent reductions of computing times, costs and damages may provide remarkable advantages with respect to the present standardized practices and are evidenced by numerical examples.
It starts with a invited keynote lecture by Prof. During lunch break there will be a poster session open for all members of the RD to share their recent research. One possible way to reduce the impact on buildings is to locate the tunnels below the street pattern as much as possible, such that the main settlements occur well away from the buildings and their foundations.
In the case of the North-South Line in Amsterdam, with sensitive buildings founded on piles, this resulted in relatively deep tunnels, however. Therefore, the station boxes were deep and expensive, and risky. The alternative would be to tunnel above the pile tip level in soft holocene soils as a consequence. A theoretical study has been undertaken to investigate to what extent this is feasible and what the resulting impact on nearby buildings would be. A second project looks into the interaction between the TBM shield and the surrounding soil.
Most projects attempt to derive the impact of tunneling on the surrounding soil from measurements either at surface or below surface, but distanced somewhat from the actual TBM.
Here the behavior of the TBM and the directly surrounding soil is obtained by data mining the process data collected during a TBM project in The Hague, the Netherlands.
Based on these models, the interaction between the TBM driving process and the soil is derived, as a step towards minimizing the stress change due to tunneling on the soil and the resulting settlements. To our shock and dismay, we recently received news of the sudden death of one of our beloved colleagues and research partners, Prof. Tom Schanz passed away on Thursday, the 12th October , at the age of 55 years.
Tom Schanz, like no other, has shaped the SFB with his strong commitment, expertise and his unique personality. He will be deeply missed for his creative scientific mind, his admirable curiosity and, not least, because of his critical, but always benevolent and helpful, questions and comments voiced during our research discussions.
The team of the SFB would like to express their heartfelt and sincere condolences to the family and relatives of Prof. Tom Schanz, as well as to the employees of his institute. We wish them all the strength needed to deal with this unexpected loss. Researchers from SFB have developed a solution to predict advancement-based settlements in real time while the tunnel construction is in progress.
The decisive factor was to simplify the complex finite element simulation models by implementing fast surrogate models. They did it by combining two model reduction approaches based on Artificial Neural Networks and Proper Orthogonal Decomposition. The uncertain geological parameters that had to be factored in constituted a major challenge. This is because reliable predictions are possible only if the inaccuracies of those parameters are considered.
The SFB researchers have already developed high-dimensional real-time prediction approaches for intervals. In the next step, they intend to extend these methods for other uncertainty models, such as fuzzy and stochastic models. Thanks to the real-time capability of the simulation model, an app is currently being designed that can be used by tunnel construction engineers on location. The MGK qualification program of the SFB started in and provides the possibility to doctoral candidates to achieve extra skills beyond the topic of the individual research project.
Ruhr University, Bochum Im Verbundforschungsvorhaben SFB finden sowohl experimentell als auch numerisch orientierte Vorgehensweisen zur Erforschung der vielfältigen Wechselwirkungen im maschinellen Tunnelbau Anwendung. Labor- und in-situ Experimente liefern Erkenntnisse zur Beschreibung physikalischer Phänomene und werden zur Validierung numerischer Modelle und zur Identifikation der entsprechenden Modellparameter benötigt.
Together with psychologists from the Ruhr-University Bochum, engineers from the collaborative research center did research on how far non-professionals perceive damages of buildings in contrast to experts. Opposing to experts, non-professionals assess damages of historical buildings far less severe than those of modern buildings. Business psychologist Katharina Friedrich reports that an old church tower with a clearly visible tilt was classified as an insignificant damage or was seen as there was no damage at all.
Overall, residential buildings were evaluated more accurate than old towers, churches or castles. Massive or very simple damages were assessed on the same level by non-professionals and experts. Whereas moderate damages were largely underestimated by non-professional people. The aim of the project of the collaborative research center alongside with psychologists is to compare engineering critical values with the subjective perception of humans.
If there are grave deviations, one has to possibly take action and inform the general public in the future. More information can be found in the German article here: Daniela Boldini form the University of Bologna, Bologna, Italy, will hold a guest lecture in the framework of SFB about 'Modelling tunnelling-induced deformation on surface structures'. The construction of tunnels in urban areas inevitably entails the interaction with existing structures.
Current design approaches for the evaluation of tunnelling induced damage on buildings are based on semi-empirical evaluations of the deflection ratios and horizontal tensile strains at foundation level, assuming that the structure will conform to the greenfield displacements. If the stiffness of the structure is deemed significant, coupled numerical analyses should be performed including a model of the building.
The latter can be simulated using either an equivalent solid, for which appropriate equivalence criteria have to be defined, or using a detailed structural model. This presentation focuses on the soil-structure interaction due to mechanised tunnel excavation, considering two examples from real case-histories of recent projects in Italy, i. One novel element of the proposed approach is the detail adopted in schematising all the structural elements, including the foundations, in a unique numerical model including the soil and the tunnel.
The satisfactory comparison between the numerical results and settlement measurements, including those along the structures, proves the reliability of the proposed finite-element models to capture the essential mechanisms governing the problem in the two analysed situations.
Structural optimization requires to meet structural performance requirements by using the minimum amount of structural materials.
A more comprehensive and new design perspective for structural elements could be tailored by properly combining fibers and rebar Hybrid Reinforced Concrete, HRC. In fact, both localized stresses that can be resisted by localized rebar, and distributed stresses that are properly resisted by distributed fiber-reinforcement, are generally present in structures. Another approach to reinforcement optimization could be based on a distinction between principal stresses, assigned to rebar, and secondary stresses due to secondary moments or to shrinkage and thermal stresses assigned to fiber reinforcement.
In fact, fibers could be just added to conventional reinforcement as an extra reinforcement providing a significant growth of residual tensile strength at crack, which determines in turn a substantial increment in the cracked structural stiffness and, consequently, a reduced deformation.
In addition, the crack pattern is generally characterized by narrower and more closely spaced cracks that enhance structural durability. This workshop mainly aims to give an overview on the recent advances and new developments in stability analysis for geotechnical applications. The mostly referred solutions for determination of failure load such as limit equilibrium, limit load theorem of classical plasticity and upper and lower bound analyses based on finite element method will be discussed.
The use of the classical as well as modern techniques to perform stability analysis for bench mark geotechnical applications including footing bearing capacity, slope and tunnel face stability analyses are in the main focus of this workshop. Participation is free of charge. Rennie Kaunda form the Mining Engineering Department, Colorado School of Mines, USA, will hold a guest lecture in the framework of SFB about 'Rock specific energy as a measure of performance in mechanical excavation and tunneling under mixed ground conditions'.
Tunneling projects can easily cost millions or billions of dollars. These costs can become prohibitive, especially near cities where cost overruns are likely to be borne by taxpayers due to hard rock or mixed ground conditions. The objective of this presentation is to give an overview of our recent research work at the Colorado School of Mines where we have utilized rock specific energy derived from large scale laboratory linear cutting tests, mechanical tests, and artificial neural network modeling to understand rock behavior.
The presentation is given in the context of present and previous research which has been conducted at our Earth Mechanics Institute EMI in the department of mining engineering at Colorado School of Mines for more than 40 years. In March Prof.
This announced lecture focuses on the main three main sections of the Rankine lecture: The first focuses on research to support offshore hydrocarbon production, considering platform foundations on the continental shelf and large landslide geohazards in deeper water. The second considers research into climate change impacts in warming permafrost regions and engineering to raise flood defences founded on difficult organic soils.
The final section reports on current research that is having a major impact on offshore wind turbine foundations and hence renewable energy economics. The Lecture emphasises that integrating geology and rigorous analysis with advanced laboratory and field experiments is the key to resolving the complex geotechnical problems raised; careful full-scale field monitoring is also essential to checking reliability in practice. The measurements of cone tip resistance, sleeve friction, and pore water pressure during penetration are used to obtain soil stratigraphy and parameters needed for geotechnical engineering design.
However, research in this practical field of geotechnical engineering has repeatedly shown that, in sandy soils, CPT measurements depend on both sand relative density and in-situ horizontal stress. Therefore, empirical relationships developed to correlate CPT measurements with soil parameters have the shortcoming of not being able to distinguish the separate effects of these two important factors on cone tip resistance.
In this presentation, after a brief introduction on CPT test, the results of a numerical procedure to model CPT penetration are discussed. The predictions of cone tip resistance obtained in this numerical approach are then verified with reliable CPT measurements performed in calibration chambers having controlled sand relative density and stress state. The numerical modeling approach also provides other very important additional information such as soil particle velocity around the cone during penetration, radius of plastic zone which cannot be easily measured during normal penetration tests.
These additional information obtained in the numerical procedure are then used to tackle an analytical solution on CPT penetration providing two relationships for cone tip resistance and friction sleeve from which sand relative density and in-situ horizontal stress can be evaluated independently. Based on these relationships, practical engineering charts are presented through which geotechnical engineers can evaluate sand relative density and in-situ horizontal stress from CPT measurements.
Steffen Freitag Institute for Structural Mechanics is this year's award winner of the Karl Arnold Prize which is highly remunerated with The award ceremony took place on the 10th of May within the annual celebration of the academy in Düsseldorf. The prize was awarded to Dr. Freitag for his highly innovative and transdisciplinary research efforts in the area of Constructional Engineering, Applied Computer Science, and especially in the field of Computational Engineering and Computational Intelligence.
For more information, please visit the following links: You will find an introduction video of the award winner here: Further information can be found here: Please note that all links are in German.
Steffen Freitag and wish him all the best. Christoph Butscher will hold a guest lecture on "Problem child Gipskeuper" - Processes and controls in swelling clay-sulfate rocks. The swelling of clay-sulfate rocks can lead to ground heaves and severe damages to infrastructure. Swelling problems are known from tunneling, construction of roads and bridges and recently from geothermal drillings, and are mainly encountered in the Gipskeuper formation in Germany and Switzerland, but also elsewhere in Europe and worldwide.
Prediction of the swelling behavior of clay-sulfate rocks is very challenging because the underlying processes are manifold, complex and interactive. By presenting swelling processes and controls — as well as their coupling - from different geoscientific fields, the presentation summarizes the state of knowledge and highlights remaining open research questions related to the swelling of clay-sulfate rocks. Vladimir Buljak from the University of Belgrade, Serbia, will hold a guest lecture in the framework of SFB about 'Structural diagnosis and material model calibration through inverse analysis: The purpose of this lecture is to show some recent research contributions, achieved by our team, to the methodology of inverse analysis apt for diagnosis of possibly damaged structures and for mechanical characterization of materials in diverse industrial environments.
Research results are presented with reference to the real life engineering problems. First group of results considers diagnostic analysis of structures, with following industrial applications briefly presented: Second group of results concerns calibration of complex constitutive models, described by large number of parameters, with reference to the following problems: Presented examples demonstrate practical advantages in terms of time and resource savings that may be achieved by the employment of inverse analysis methodology.
Heterogeneity in engineering application evidences the flexibility of methodology, suggesting that the applications in some other engineering fields can be easily accomplished by marginal modifications of presented techniques.
This joint workshop was the 6th in this series and took place at the University of Innsbruck in Austria. The event was hosted by Prof. It was loosely attached to the Euro-Tun conference. With 11 presentations from 4 SFB cooperation partners and 33 participants it was a true success — a fact that was also emphasized in the feedback of the participants.
Image gallery Booklet Workshop poster Workshop programme. Die Fahrzeiten und Haltepunkte ändern sich nicht. Erleben Sie unter fachkundiger Begleitung die Industriekultur und den Strukturwandel des Ruhrgebietes hautnah. Wenn Sie die Arbeit der Stiftung Eisenbahnmuseum Bochum unterstützen und zum dauerhaften Erhalt einer einmaligen Fahrzeugsammlung beitragen möchten, dann helfen Sie uns. Erhalten und Restaurieren von historischen Fahrzeugen und eines Bahnbetriebswerkes aus der Dampflok-Ära ist zeit- und kostenintensiv.
Daher sind wir für ehrenamtliche Mitarbeit und für Spenden sehr dankbar. September Zechenbahntage [mehr Informationen]. Fahrt auf der Ruhrtalbahn [mehr Informationen]. Mit dem Dampfzug auf der Ruhrtalbahn [mehr Informationen].
Themenfahrt durch das Ruhrgebiet "Abschied von der Kohle" [mehr Informationen]. Startseite Besucherinfos Öffnungszeiten, usw. Herzlich Willkommen im Eisenbahnmuseum Bochum. Aktuelles rund um das Museum.
Mit Leidenschaft, verwöhnen die Frauen die Männer und setzen jedes ihrer Talente ein. Wenn Sie die Frauen sofort buchen möchten, wird Ihnen nun ganz oben, übersichtlich, die Telefonnummer für die Buchungsanfrage angezeigt. Sie werden auf Privatmodelle in Berlin sogar über die einzelnen Preise informiert.
Dies ist besonders fair, da sich dieser Menüpunkt deutlich von herkömmlichen Angeboten abhebt. Mit der Information über die Preisstruktur der Frauen, erleben Sie keine böse Überraschung, sondern erleben exakt den gewünschten Service, den Sie auch gebucht haben. Viele Geschäftsmänner kennen das Angebot bereits und nutzen es intensiv. Auch der Gelegenheitsbesucher profitiert von den sexuellen Attraktionen auf Privatmodelle Berlin. Diese attraktiven Frauen können sich problemlos als Top-Models bezeichnen.
Der Kunde wird optisch und in Sachen Leistung von den einzelnen Darbietungen überzeugt und erhält einen befriedigenden Service, der auf Wunsch mit vielen Extras kombiniert werden kann. Das was Du an anderer Stelle nicht bekommst, genau das bekommst Du hier bei diesen bezaubernden weiblichen Wesen.