Clone of Spain-Morocco tunnel based on the Eurotunnel model
The project for the Spain-Morocco railway tunnel resumes studies inspired by the Eurotunnel that connects the United Kingdom with France. +
Hard rock tunneling without explosives
China has developed an innovative method that uses drilling machines equipped with diamond-studded crowns to excavate tunnels in urban and interurban areas where the use of explosives or heavy machinery is not feasible. +