Abstract
The non-destructive measurement of sheet pile lengths at existing constructions is a complex task. Low strain pile integrity testing is an easy and efficient method, but sometimes fails to give meaningful results. Statistical evaluation enhances the reliability and gives hints on length changes. Using the parallel seismic method, which has been developed for the assessment of drilled shafts and similar constructions, is an alternative possibility worth considering. Recently developed interpretation tools allow greater distances between piles and sensor boreholes compared to other methods. Two field examples show the use of both methods and some pitfalls, including ways to overcome them.
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