Temporary works such as launch shafts using cut & cover techniques, TBM launch frames, TBM cradles, and cross passage opening frames are essential for temporary or permanent works to commence. We provide complete design solutions for all temporary work aspects associated with the construction of mechanised tunnels. This means that we ensure that the design assumptions are fully understood and properly taken into account. One of our guiding principles is that all design leaders in charge of major projects must be conversant in several design disciplines.
• TBM launch frames and seals
• Alternative TBM launch design using ‘flying’ start arrangement
• Temporary lining support design at openings
• Face pressure assessment