Tugade inspects tunnel boring machines for Metro Manila subway project

February 20, 2019

In preparation for the construction of the Metro Manila Subway which will break ground on February 27, officials of the Department of Transportation (DOTr) led by Secretary Arthur Tugade inspected tunnel boring machines (TBM) in Japan.

Tugade proceeded to the JIMT Tsurumi Factory in the city of Yokohama, south of Tokyo on Tuesday, a statement by the department said Wednesday.

JIM Technology Corp.is considered as Japan's foremost manufacturer of tunnel boring machines. 

Tugade was joined by Undersecretary for Railways Timothy John Batan, Philippine National Railways (PNR) general manager Junn Magno, Japanese Ambassador to the Philippines Koji Haneda, and Japan International Cooperation Agency (JICA) Philippines chief representative Yoshio Wada.

“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,” Tugade said. 

On Wednesday,  Tugade and other key DOTr, Japan Embassy, and JICA officials traveled to Osaka via Shinkansen, and inspected the tunnel boring machines manufactured by Hitachi Zosen in Sakai City.

Hitachi Zosen’s Sakai Works factory has manufactured 1,300 tunneling machines, and has a track record of 130 tunnels overseas.

During the inspection, HZSW showed their Neo RISE technology — a no engine power and no human operation rising sea wall that automatically rises to protect any structure from incoming floodwater, which is being considered for installation at the entrances of the Metro Manila Subway stations.

A tunnel boring machine is used to excavate tunnels using a circular cross-section mechanism. It uses 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. 

Transportation officials are in Japan to attend a high-level bilateral meeting between Philippine infrastructure and economic teams and the Japanese government to discuss status and updates on Philippines-Japan projects in the Philippines. 

The Filipino delegation will attend the Philippine Economic Briefing on Friday to brief Japanese businessmen on investment opportunities in the Philippines, including the progress of the Build Build Build Program. DMS