Tender design, subsidence analysis and ground treatment measures to protect buildings and skyscrapers in Avda. de Reforma.
- 7.6 km twin 12.7 m OD urban tunnel.
- Volcanic soils and rocks.
- Subsidence analysis and ground treatment.
- Compensation and permeation grouting.
- Risk management for building (some 20 levels).
- Design cost: USD 2 million.
