List of products by author: M. Sepiani

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  Disassembly in Mechanised Headrace Tunnel for the Uma Oya Project, Sri Lanka

  Abstract: The breakthrough of the Headrace tunnel in the Uma Oya project done on October 2019, which face a lot of challenges and unforeseeable conditions of 15.4 km. The tunnel excavated by 2 hard rock double shield TBMs which excavated upward & downward without any middle access. One of the TBMs excavated more than 10 km upward and the other one excavated remains parts downward. The plan and location...

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  Preventive Maintenance in Tunnelling for the Uma Oya Project, Sri Lanka

  Abstract: Uma Oya Multipurpose Development Project involves 2 RCC Dams connected by a D&B Link tunnel which will transferred water from first dam to the 2nd dam and then it will be transferred conveyance a 15.4 km Headrace Tunnel to the top of a 618 m deep pressure shaft that feeds to an underground powerhouse for generation of electricity. The Headrace and Tailrace Tunnels are being excavated by two 4.4...

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