In preparation for the ground breaking of the much-awaited Metro Manila Subway on February 27, the Department of Transportation (DOTr) led by Secretary Arthur Tugade inspected the Tunnel Boring Machines (TBM) at the JIMT Tsurumi Factory in Japan.
In his press statement, DOTr Secretary Tugade, said, “The Metro Manila Subway is the Philippines’ first-ever underground railway system. Before, people cast doubts and said it is all but a dream. But, on February 27, we will show them that this is real.”
The Tunnel Boring Machine (TBM) is used to excavate tunnels using a circular cross-section mechanism. It utilizes sophisticated technology that minimizes the vibration above ground, as well as ground subsidence or surface sinking. It is a requisite in building subway systems, among others.
The 6.9-meter diameter tunnel boring machine being considered for the Metro Manila Subway weights over 600 tons. In the process of procurement, the machine has to be assembled in Japan for a test run. Upon passing the tests, the machine has to be disassembled, shipped to the Philippines in parts, where it will be assembled again for construction use.