A Predictive Map of Compression- Sensitivity of the Dutch Archaeological Soil Archive

What is it about?

Weak soils like unconsolidated clay and peat may deform and compress considerably by loading, e.g. by sand bodies for roads and railways. Archaeological sites within such easily compressible soil layers may therefore be heavily affected by different kinds of construction works. The vulnerability of archaeological sites to compression is largely dependant on soil properties like lithology, grain-size and previous loading history. This may therefore differ considerably. As part of the Dutch National Cultural Heritage Agency’s research programme on construction and archaeology, we prepared predictive maps of the compression sensitivity of the subsurface sediments in the Netherlands for 1 m depth intervals from 0 to 20 m depth. The maps were constructed using a full 3-D model of the subsurface of The Netherlands.

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Why is it important?

Predicting the compression sensitivity is of great value for planners, since they can estimate in which areas in situ protection of archaeological sites may be feasible and where it would require (costly) technical measures or plan adaptations.

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