News: MRT 2 SSP Line 70% Completed Despite Change In Project Structure

Mar 12, 2020

Despite a change in project structure, construction works for the MRT Sungai Buloh-Serdang-Putrajaya (SSP Line) has been proceeding smoothly, with over 70% of the line completed.

This comes as a major milestone has been achieved with an underpass tunnel right below Kuala Lumpur-Seremban Expressway near Sungai Besi.

The project structure for SSP Line was changed to a turnkey model from a project delivery partner, following a cost rationalisation exercise that resulted in RM8.82 billion cost savings for the project.

“We should be able to begin operations for Phase One of the SSP Line between Kwasa Damansara Station and Kampung Batu MRT Station by the middle of 2021, and the rest of the line by 2022,” said Mass Rapid Transit Corporation Sdn Bhd (MRT Corp) SSP Line Project Director Datuk Amiruddin Ma’aris.

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He noted that the whole elevated guideway for Phase One operations was already completed, while works for the track-related installation programme is in progress. The 16 train sets delivered to the Sungai Buloh Depot are also ready for testing, reported The Star.

The continuous twin tunnel sections between Chan Sow Lin and Bandar Malaysia Selatan and between Sentul Barat Station and Ampang Park MRT Station had also been completed.

He added that the breakthrough of the underpass tunnel below the Kuala Lumpur-Seremban Expressway happened on 7 March, marking the completion of excavation for the second tunnel. It achieved the first tunnel breakthrough on 25 February.

The breakthrough served as a major milestone in the construction of the Klang Valley MRT Project’s second line.

“The success of the V204 underpass construction shows the strong commitment of MRT Corp as project owner and the construction team from MMC Gamuda KVMRT (PDP SSP) Sdn Bhd as turnkey contractor and WCT Bhd as the work package contractor to deliver the project according to schedule,” Amiruddin said.

He added that the breakthrough was the result of ingenuity and innovation by using various methods in SSP Line’s construction in order that challenges may be overcome with minimum public inconvenience.

“To cross the expressway, studies indicated that an underpass was the ideal solution as constructing the viaduct crossing above was not possible with the low land on the Sungai Besi side of the expressway,” said MMC Gamuda Deputy Project Director Amir Malik Faeiz.

“This made tunnelling under the expressway the best solution.”

With both tunnels having a diameter of 5.8 meters and length of 60 meters, the tunnels are situated between Sungai Besi and Taman Naga Emas stations.

The tunnels were constructed using a combination of methods, like micro-tunnelling with mini-sized 0.8 diameter tunnel boring machines as well as pipe-jacking to build an arch so that excavation works may be carried out.

Construction works on the tunnel started in March last year, with the expressway above – which is a major transport artery that leads in and out of Kuala Lumpur – was kept open to traffic throughout the period.

Various safety precautions and constant monitoring were made to ensure the works did not affect the expressway.


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