New MRT line’s tunnelling work to start early next year

Engineers stand in front of a Tunnel Boring Machine (TBM) during the breakthrough of a tunnel in Kuala Lumpur January 10, 2014. The world's first variable density TBM has completed the first section of the 9.5km twin tunnels of the Klang Valley MRT.

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GUANGZHOU — September 3, 2017: Tunnelling work for the underground section of the Sungai Buloh-Serdang-Putrajaya (SSP) mass rapid transport line will begin in the first quarter of next year.

The 13.5-kilometre section begins somewhere below Jalan Ipoh and ends at Bandar Malaysia Selatan just outside the Kuala Lumpur city area.

Work will start once Mass Rapid Transit Corporation Sdn. Bhd. (MRT Corp) receiveds two of four tunnel boring machines (TBM) the end of this year.

The machines are undergoing factory acceptance tests at Herrenknecht Tunneling Machinery Co. Ltd. here.

MRT Corp’s strategic communications and affairs director Datuk Najmuddin Abdullah said the tests involve more than 400 inspections to ensure that the machines’ system and design meet the specifications.

“The machines are then sent to the site for installation which takes two months, before being used for the task.

Twelve machines will be used to build the underground tunnel, of which eight had been used for the Sungai Buloh-Kajang line, of which 9.5 km are underground.

Najmuddian said the SSP is 12.05 per cent completed and by the end of the year should reach 19 per cent.

The SSP line involves a 52.2 km alignment covering 37 stations, including 11 underground, and is scheduled to be completed in 2022. — Bernama



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