Client : WATER DEVELOPMENT DEPARTMENT (Cyprus)
Specialist adviser on construction aspects of the 14.5km long Dhiarizos Tunnel (3.1m dia) through limestone, chalk, chalk marl. Evaluation of original tunnel design with concurrent one pass segmental lining system. The tunnel alignment passes under significant cover through very weak rock units and has to date experienced significant overstressing behaviour based on a TBM excavation approach with a conventional support approach (rock reinforcement / shotcrete / arch ribs). Investigation and assessment of swelling phenomena in marls.
Appointed to undertake final lining design based on comprehensive evaluation of final tunnel stability state.