HS2 has said that the fieldwork element of the ground investigation will be completed by the end of 2017 and played down rumours that the work is behind schedule.
Project promoter HS2 said that all 53 work packages for the ground investigation on the 224km route have been awarded to the eight framework contractors and a number have already been completed.
“We are currently exploring ground conditions along the initial HS2 route, from London to the West Midlands,” said a spokesman for HS2. “This is the largest ground investigations programme that the UK has ever seen, and is playing a key role in the delivery of the railway.
“We have already shared a significant amount of technical data with our recently appointed main works contractors. Ultimately, the programme is providing us with the information we need, when we need it, to progress the detailed design of HS2.”
According to spokesman, HS2 and its contractors have continually sought to refine how and when the ground investigation programme is delivered.
Industry rumours have suggested that the ground investigation work is behind schedule but HS2 has denied this. In a statement, HS2 said: “There has not been a delay to the schedule related to testing methodologies or procurement issues.
“The schedule has been improved and adapted so we deliver the investigations in a way that is fully aligned to the timescales and needs of our main works contractors. This is positively supporting the delivery of the project and there are no negative implications.
“The majority of the investigations have already been completed and we expect all fieldwork to be completed this year.”