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Zhu, Y. (author), Peng, M. (author), Shi, Z. (author), Zhang, L. (author)
The 2008 Mw 7.9 Wenchuan earthquake triggered at least 257 landslide dams, most of which formed in series along rivers. The failure of an upstream dam could cause the failure of dams downstream one after another. The cascade dam breaching may result in sharp increase of flood and more serious damage downstream. This paper aims to analyze the...
conference paper 2015
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Galenkamp, H.F. (author), Bosma, C.F. (author)
Designing challenges engineers to develop both economically attractive and safe designs. This might seem a paradox, but with the application of the observational method, wherein safety is checked by real-time monitoring, economic design and safety are united. The observational method is recently successfully applied in the Netherlands during the...
conference paper 2015
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Rijneveld, B. (author), Jacobse, J.A. (author)
A new lifting bridge is being constructed crossing the river Oude Maas in the Rotterdam harbour area in the Netherlands. Since foundation deformations of the main piers have a large influence on the performance of the superstructure, extensive deformation analyses have been performed during the design phase. In order to minimise the risks and...
conference paper 2015
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Otake, Y. (author), Honjo, Y. (author), Hiramatsu, Y. (author), Lee, K. (author), Kodaka, T. (author)
A design scheme is proposed to evaluate the safety of continuous linear structure i.e. river levee. The scheme is developed to establish a procedure to continuously evaluate the stability failure of embankment during flood runoff by seepage, and to identify locations for reinforcement of river levee. A 20km stretch of a fairly large river...
conference paper 2015
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Bles, T. (author), Stoevelaar, R. (author), de Jong, E. (author)
In the Netherlands research has been performed on the Observational Method, aiming at a wider use of the method in the design of underground and infrastructural construction works. This paper summarizes the guideline that was output of the research, providing a clear definition, an overview of obstacles and pre-conditions, practical...
conference paper 2015
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Katzenbach, R. (author), Leppla, S. (author), Seip, M. (author)
For all types of construction works the aspects safety, serviceability and sustainability have to be focused during the planning phase, the design phase, the construction phase and in the service phase. Particularly this has to be considered for complex deep foundation systems like the Combined Pile-Raft Foundation (CPRF). The basis for a...
conference paper 2015
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van Dalen, J.H. (author), Servais, R. (author), Boone, D.C. (author)
The A2 tunnel in Maastricht has been built within a dry building pit with a maximum depth of 22 meters with sheet pile walls, suspended in a cement bentonite trench supported by struts at 2 to 4 levels. Dewatering is done by deepwells. The excavation reaches into Limestone layers so the maximum mobilized passive resistance of the sheet pile wall...
conference paper 2015
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Gao, L. (author), Zhang, L.M. (author), Chen, H.X. (author)
Due to hilly terrain and frequent heavy rainstorms, debris flow is one of the most common and catastrophic hazards in Hong Kong. To mitigate the debris flow risk, prediction of the magnitude and consequence of debris flow is essential. The objective of this paper is to simulate debris flow hazards in a study area in Hong Kong. Assessment of the...
conference paper 2015
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Pot, R. (author), Roelse, F.P. (author), Van der Meer, M.T. (author), Nushi, B.R.I. (author), Nelemans, J.P. (author)
The application of the Observational Method can contribute to an economic construction process and effective geotechnical risk management. Current project management practices and control of construction works lead to unfavourable conditions of its application. Throughout the realization of infrastructure, understanding of project risks and...
conference paper 2015
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Le Masurier, J. (author)
Geotechnical engineering designs are often predefined before construction commences, in an attempt to eliminate uncertainty. Such predefined design can lead to poor value, either due to waste of resources from over design, when opportunities are missed for optimising the design during construction, or due to the delay and additional cost of...
conference paper 2015
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Peters, M.G.J.M. (author), Kleinjan, J.A. (author), Koster, A. (author)
During the last decade, at least eight earthquakes occurred in the Northern Netherlands with a magnitude of 3 or higher on the Richter scale. These earthquakes are not tectonic but induced by natural gas production from the Groningen Gas Field. Before that time there were no earthquakes in Groningen with such magnitudes. Research conducted by...
conference paper 2015
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De Gast, T. (author), Vardon, P.J. (author), Jommi, C. (author), Hicks, M.A. (author)
Regular dyke assessment is part of reducing the risk of flooding in the Netherlands. 18 000 km of dykes are assessed at regular intervals, of which 14 000 km are classified as regional dykes and their main aim is to defend polders from inundating. The methods of assessing regional dykes are strongly inter-twined with the methods of assessing...
conference paper 2015
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Niederleithinger, E. (author)
Geophysical methods are able to contribute significantly to geotechnical site characterization. In-situ parameters are collected and gaps between boreholes or other direct tests are filled with information. However the limited resolution has to be considered and the indirect geophysical parameters have to be translated into something...
conference paper 2015
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Baecher, G.B. (author), Christian, J.T. (author)
The statistics course most engineers took in college—seldom more than one—introduced them to a particular species of statistics, which, regrettably, is of limited use in geotechnical practice: frequentist sampling theory. That species of statistical thinking arose to address problems of agricultural experimentation, biology, and economics. It is...
conference paper 2015
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Länsivaara, T. (author), Knuuti, M. (author)
All Eurocodes are currently under a critical review, while the work for a second generation of codes are about to start in 2015. For the geotechnical design EN 1997-1 is facing high demands for harmonization and simplification of the present code. The paper presents some proposals for improving the code regarding ultimate limit state (ULS)...
conference paper 2015
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Huffman, J.C. (author), Martin, J.P. (author), Stuedlein, A.W. (author)
Geotechnical reliability-based limit state design methodologies are rapidly evolving to meet the demands of various applications. However, the accuracy of these new procedures should be independently assessed and improved as new loading test data is made available. This paper focuses on the assessment of two relatively new serviceability limit...
conference paper 2015
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Nishimura, S-I. (author), Shibata, T. (author), Shuku, T. (author)
The spatial distribution of the strength inside an earth-fill dam is identified by sounding tests. In this research, the Swedish Weight Sounding (SWS) test is employed, and the spatially high-density test is possible to identify the spatial correlation structure by the SWS. The correlation structure of an earth-fill could be identified...
conference paper 2015
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Maruyama, O. (author)
The numerous major earthquakes in Japan, such as the Great Hanshin-Awaji earthquake, Tohoku Regional Pacific Coast earthquake caused substantial casualties and property damages. Private companies/public utility enterprises should provide disaster reduction investment as part of risk management and prepare a strategic Business Continuity Plan....
conference paper 2015
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Otake, Y. (author), Honjo, Y. (author), Kusano, T. (author)
The aim of this study is to establish a procedure to determine resistance factors for newly developed pile products through an example of the rotational intrusion steel pile (RI pile). RI pile is a newly developed steel pile product which has the vane type tip structure to resist reliably against vertical load and to intrude easily by rotating...
conference paper 2015
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Balachowski, L. (author), Bialek, K. (author)
Bearing capacity of the working platforms from sandy soil resting on NCOC clays was analyzed using LimitState GEO program. Different failure modes are considered using distinct layout optimization (DLO) method, which forms the upper bound solution of limit state analysis. Different mechanisms of failure were observed as a function of the...
conference paper 2015
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