The Working group (WG2 on Research) has published the 15th ITA report on Strategy for Site Investigation of Tunnelling Projects in portuguese version.

This document has been translated by Dr. Daniela Garroux G. De Oliviera with a review by André Pacheco De Assis, PhD and Eloi Angelo Palma Filho,M.Eng. but also published in Partnership with the Brazilian Tunnel Committee (CBT).

It is worth recalling that this guideline, published in 2015, aims to share  and disseminate existing approaches on site investigation for tunnelling projects in order to improve international practices by reviewing and assessing the geotechnical information required for design, while considering environmental and construction issues. This report provides a general guide for site investigation procedures which may be adapted to address the specific needs of each project which may include technical risks, local regulations, contractual framework, etc.