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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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Katsigiannis, G. (author), Schweiger, H.F. (author), Ferreira, P. (author), Fuentes, R. (author)This paper focuses on the derivation of design prop loads for supported excavations in stiff clay with increasing excavation depth and number of prop levels. For multi-propped walls there are a number of empirical graphs to obtain the design prop forces. CIRIA C517 (Twine & Roscoe, 1999) enhancing Terzaghi & Peck's work (Terzaghi & Peck (1967)...conference paper 2015