Reference : Design of sheet pile installation by vibration
Scientific journals : Article
Engineering, computing & technology : Civil engineering
Computational Sciences
Design of sheet pile installation by vibration
Van Baars, Stefan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Geotechnical and Geological Engineering
[en] design ; field test ; installation ; sheet pile ; vibration
[en] In the Netherlands 70% of the steel sheet piles are installed with vibrators. This is
because vibrators have a high production rate and therefore a low installation cost. This
method only works for soft peat and clay layers and saturated sand layers which are not
densely compacted. During pile installation several problems might occur. In this paper the
attention is paid to avoiding jamming of the pile before it has reached its planned depth. In
most of these cases this is caused by a design error which has let to a vibrator which is too
light. Over the years different design tools, such as computer models, design graphs and design
equations, have been developed in order to predict the minimum required vibrator force. In
this paper a new design equation is presented, which consists of three parts: the mass of the
sheet pile, the friction along the shaft and the soil resistance at the tip of the pile based on
the cone penetration resistance. This equation and several other design tools for sheet pile
installation, have been compared with 18 field tests. It was found that the general design
graphs of the Dutch Union of Foundation Contractors (NVAF), the design equation of the
Dutch Civil Engineering Centre for Construction Research and Design Rules (CUR) and
the German design equation of the EAU1996 gave very poor results. The computer model
Vibdrive from Holeyman (1996), the design graphs for specific locations from the NVAF
and the new presented design equation from the author gave reasonable predictions. Since
the computer program is, because of its complexity, not regarded as a design tool for daily
design work and the local design graphs only exist for a small number of locations in The
Netherlands, the new design equation is according to the field tests the best method for the
calculation of the vibrator needed for sheet pile installation.
Researchers ; Professionals ; Students

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