List of products by author: Ali Harampanahi

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  Backfilling of 618m Steel Lining VerticalShafts Uma Oya Project, Sri Lanka

  Abstract: Uma Oya Multipurpose Development Project is a hydropower project comprises of two RCC Dams which their reservoirs are connected by a Link tunnel. The water will transfer from first dam reservoir to the other and then it will transferred through a 15.4 km headrace tunnel to the top of a 618 m deep vertical pressure shaft. This shaft provides high pressure water with its suitable head for an...

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