The response of the underground structures on the imposed loadings depends on a number of parameters that sometimes are too complex or not fully understood, resulting to budget overruns or even failures that lead to loss of life or property. Such uncertain cases need to be addressed and engineers should accurately predict the construction’s performance throughout its construction and service life.

Plans for underground spaces to be used as storage facilities have, in many cases, proved highly controversial. This is particularly the case when proposing to build a chemical or nuclear depository, but also applies to general waste. Serious environmental issues can arise in these cases. The issue is particularly pressing in our society and it is a matter of urgency to share common experiences in this field.

The Conference will discuss not only the structural and environmental material characterization aspects but also the trends regarding the utilisation of underground spaces. Moreover it will emphasise in its environmental aspects, the architectural characteristics and concepts that might be applied to make underground space an integral part of the city planning and a living environment.