Gedrag Bouwputten NZL

Documentcode: F531-01-09

Categorie: theoretischmodel;technischeachtergrondinformatie

The objective of this study is to gain insight into mechanisms of soil-structure interaction for buildings adjacent to deep excavations and to find a reliable method to design and monitor deep excavations in urban areas with soft soil conditions. The research focuses on typical Dutch conditions. The main questions are: How can we predict the behaviour of one or more buildings when a deep excavation will be constructed? What kind of modelling and/or measurements can be used to predict this effect?

This report describes the literature reviewed for this topic and several case studies related to the topic from literature. General damage assessment procedures are also given.

Assessing the response of buildings to excavation-induced deformations involves a combination of geotechnical and structural aspects, such as green field displacements

(2D/3D, caused by deep excavations), building behaviour, soil – foundation - building interaction, monitoring techniques and modelling techniques. Each of these topics is described in this study.

Three different case studies are presented for the insight they provide in the soil – structure interaction caused by deep excavations, tunnelling or subsidence. Both ground deformations and building deformations have been collected. These cases show aspects of the relationship between deformation of the building and damage occurring.